{"id":29766,"date":"2025-06-05T14:06:01","date_gmt":"2025-06-05T07:06:01","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=29766"},"modified":"2025-06-05T14:07:13","modified_gmt":"2025-06-05T07:07:13","slug":"vps-bi-nhiem-malware-dau-hieu-cach-xu-ly","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/","title":{"rendered":"VPS b\u1ecb nhi\u1ec5m malware: D\u1ea5u hi\u1ec7u v\u00e0 c\u00e1ch x\u1eed l\u00fd hi\u1ec7u qu\u1ea3"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Dau-hieu-VPS-bi-nhiem-malware\" >D\u1ea5u hi\u1ec7u VPS b\u1ecb nhi\u1ec5m malware<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Hieu-nang-giam\" >Hi\u1ec7u n\u0103ng gi\u1ea3m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Hoat-dong-bat-thuong-cua-phan-mem\" >Ho\u1ea1t \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng c\u1ee7a ph\u1ea7n m\u1ec1m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Xuat-hien-quang-cao-khong-mong-muon\" >Xu\u1ea5t hi\u1ec7n qu\u1ea3ng c\u00e1o kh\u00f4ng mong mu\u1ed1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Tai-nguyen-he-thong-tieu-hao-bat-thuong\" >T\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng ti\u00eau hao b\u1ea5t th\u01b0\u1eddng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Trang-chu-trinh-duyet-thay-doi\" >Trang ch\u1ee7 tr\u00ecnh duy\u1ec7t thay \u0111\u1ed5i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Thanh-cong-cu-tien-ich-mo-rong-la-xuat-hien\" >Thanh c\u00f4ng c\u1ee5, ti\u1ec7n \u00edch m\u1edf r\u1ed9ng l\u1ea1 xu\u1ea5t hi\u1ec7n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Phan-mem-chong-virus-khong-hoat-dong\" >Ph\u1ea7n m\u1ec1m ch\u1ed1ng virus kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Dung-luong-o-cung-giam-bat-thuong\" >Dung l\u01b0\u1ee3ng \u1ed5 c\u1ee9ng gi\u1ea3m b\u1ea5t th\u01b0\u1eddng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Internet-hoat-dong-tang-cao-khong-ro-nguyen-nhan\" >Internet ho\u1ea1t \u0111\u1ed9ng t\u0103ng cao kh\u00f4ng r\u00f5 nguy\u00ean nh\u00e2n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#He-thong-lien-tuc-gap-su-co\" >H\u1ec7 th\u1ed1ng li\u00ean t\u1ee5c g\u1eb7p s\u1ef1 c\u1ed1<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Nhung-nguyen-nhan-khien-VPS-bi-nhiem-malware\" >Nh\u1eefng nguy\u00ean nh\u00e2n khi\u1ebfn VPS b\u1ecb nhi\u1ec5m malware<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Mat-khau-mac-dinh-hoac-yeu\" >M\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh ho\u1eb7c y\u1ebfu<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Cai-dat-phan-mem-doc-hai\" >C\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Thieu-cap-nhat-phan-mem-va-he-dieu-hanh\" >Thi\u1ebfu c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Truy-cap-cac-trang-web-doc-hai\" >Truy c\u1eadp c\u00e1c trang web \u0111\u1ed9c h\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Mang-khong-an-toan\" >M\u1ea1ng kh\u00f4ng an to\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Tan-cong-brute-force\" >T\u1ea5n c\u00f4ng brute force<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Tan-cong-tu-phan-mem-co-lo-hong-bao-mat\" >T\u1ea5n c\u00f4ng t\u1eeb ph\u1ea7n m\u1ec1m c\u00f3 l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Su-dung-cac-thiet-bi-luu-tru-bi-nhiem\" >S\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef b\u1ecb nhi\u1ec5m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Email-doc-hai\" >Email \u0111\u1ed9c h\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Quang-cao-doc-hai-Malvertising\" >Qu\u1ea3ng c\u00e1o \u0111\u1ed9c h\u1ea1i (Malvertising)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#FTP-khong-an-toan\" >FTP kh\u00f4ng an to\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Phan-quyen-khong-an-toan\" >Ph\u00e2n quy\u1ec1n kh\u00f4ng an to\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Bugs-cua-ma-nguon-mo\" >Bugs c\u1ee7a m\u00e3 ngu\u1ed3n m\u1edf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Khong-su-dung-tuong-lua\" >Kh\u00f4ng s\u1eed d\u1ee5ng t\u01b0\u1eddng l\u1eeda<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Khong-su-dung-phan-mem-chong-virus\" >Kh\u00f4ng s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m ch\u1ed1ng virus<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Su-dung-dich-vu-khong-an-toan\" >S\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 kh\u00f4ng an to\u00e0n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Cach-xu-ly-khi-phat-hien-VPS-bi-nhiem-malware\" >C\u00e1ch x\u1eed l\u00fd khi ph\u00e1t hi\u1ec7n VPS b\u1ecb nhi\u1ec5m malware<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-1-Cach-ly-VPS-ngay-lap-tuc\" >B\u01b0\u1edbc 1: C\u00e1ch ly VPS ngay l\u1eadp t\u1ee9c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-2-Xac-dinh-loai-malware-va-muc-do-lay-nhiem\" >B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh lo\u1ea1i malware v\u00e0 m\u1ee9c \u0111\u1ed9 l\u00e2y nhi\u1ec5m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-3-Len-ke-hoach-go-bo-hoac-khoi-phuc\" >B\u01b0\u1edbc 3: L\u00ean k\u1ebf ho\u1ea1ch g\u1ee1 b\u1ecf ho\u1eb7c kh\u00f4i ph\u1ee5c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-4-Thuc-hien-go-bo-malware-neu-chon-lam-sach\" >B\u01b0\u1edbc 4: Th\u1ef1c hi\u1ec7n g\u1ee1 b\u1ecf malware (n\u1ebfu ch\u1ecdn l\u00e0m s\u1ea1ch)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-5-Khoi-phuc-du-lieu-tu-ban-sao-luu-sach-Neu-co\" >B\u01b0\u1edbc 5: Kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u t\u1eeb b\u1ea3n sao l\u01b0u s\u1ea1ch (N\u1ebfu c\u00f3)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-6-Thay-doi-toan-bo-thong-tin-dang-nhap\" >B\u01b0\u1edbc 6: Thay \u0111\u1ed5i to\u00e0n b\u1ed9 th\u00f4ng tin \u0111\u0103ng nh\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-7-Ra-soat-va-va-cac-lo-hong-bao-mat\" >B\u01b0\u1edbc 7: R\u00e0 so\u00e1t v\u00e0 v\u00e1 c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-8-Theo-doi-va-giam-sat-VPS-chat-che\" >B\u01b0\u1edbc 8: Theo d\u00f5i v\u00e0 gi\u00e1m s\u00e1t VPS ch\u1eb7t ch\u1ebd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Buoc-9-Can-nhac-su-tro-giup-tu-chuyen-gia\" >B\u01b0\u1edbc 9: C\u00e2n nh\u1eafc s\u1ef1 tr\u1ee3 gi\u00fap t\u1eeb chuy\u00ean gia<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Bien-phap-phong-ngua-VPS-bi-nhiem-malware-hieu-qua\" >Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba VPS b\u1ecb nhi\u1ec5m malware hi\u1ec7u qu\u1ea3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Su-dung-mat-khau-manh-va-xac-thuc-hai-yeu-to-2FA\" >S\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh v\u00e0 x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 (2FA)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Cap-nhat-he-dieu-hanh-va-phan-mem-thuong-xuyen\" >C\u1eadp nh\u1eadt h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 ph\u1ea7n m\u1ec1m th\u01b0\u1eddng xuy\u00ean<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Cai-dat-va-cau-hinh-Firewall-Tuong-lua\" >C\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh Firewall (T\u01b0\u1eddng l\u1eeda)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Su-dung-phan-mem-diet-virus-va-chong-malware\" >S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m di\u1ec7t virus v\u00e0 ch\u1ed1ng malware<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-44\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Gioi-han-quyen-truy-cap-Principle-of-Least-Privilege\" >Gi\u1edbi h\u1ea1n quy\u1ec1n truy c\u1eadp (Principle of Least Privilege)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-45\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Sao-luu-Backup-VPS-dinh-ky-va-luu-tru-an-toan\" >Sao l\u01b0u (Backup) VPS \u0111\u1ecbnh k\u1ef3 v\u00e0 l\u01b0u tr\u1eef an to\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-46\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Theo-doi-logs-va-canh-bao-he-thong\" >Theo d\u00f5i logs v\u00e0 c\u1ea3nh b\u00e1o h\u1ec7 th\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-47\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Can-trong-voi-nguon-goc-phan-mem-cai-dat\" >C\u1ea9n tr\u1ecdng v\u1edbi ngu\u1ed3n g\u1ed1c ph\u1ea7n m\u1ec1m c\u00e0i \u0111\u1eb7t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-48\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Bao-mat-cac-dich-vu-mang-SSH-FTP-Control-Panel\" >B\u1ea3o m\u1eadt c\u00e1c d\u1ecbch v\u1ee5 m\u1ea1ng (SSH, FTP, Control Panel)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-49\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Mot-so-cau-hoi-thuong-gap-FAQ\" >M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-50\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Nha-cung-cap-VPS-co-go-malware-giup-toi-khong\" >Nh\u00e0 cung c\u1ea5p VPS c\u00f3 g\u1ee1 malware gi\u00fap t\u00f4i kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-51\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Nen-lam-gi-neu-khong-co-ky-thuat-de-tu-xu-ly\" >N\u00ean l\u00e0m g\u00ec n\u1ebfu kh\u00f4ng c\u00f3 k\u1ef9 thu\u1eadt \u0111\u1ec3 t\u1ef1 x\u1eed l\u00fd?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-52\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Lam-sao-biet-VPS-da-sach-malware-hoan-toan\" >L\u00e0m sao bi\u1ebft VPS \u0111\u00e3 s\u1ea1ch malware ho\u00e0n to\u00e0n?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-53\" href=\"https:\/\/interdata.vn\/blog\/vps-bi-nhiem-malware-dau-hieu-cach-xu-ly\/#Chi-phi-thue-dich-vu-go-malware-cho-VPS-khoang-bao-nhieu\" >Chi ph\u00ed thu\u00ea d\u1ecbch v\u1ee5 g\u1ee1 malware cho VPS kho\u1ea3ng bao nhi\u00eau?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>M\u1ed9t <a href=\"https:\/\/interdata.vn\/blog\/vps-la-gi\/\">Virtual Private Server<\/a> (VPS) b\u1ecb nhi\u1ec5m <a href=\"https:\/\/interdata.vn\/blog\/malware-la-gi\/\">malware<\/a> c\u00f3 th\u1ec3 g\u00e2y ra nhi\u1ec1u h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng, t\u1eeb vi\u1ec7c l\u00e0m ch\u1eadm h\u1ec7 th\u1ed1ng, \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m \u0111\u1ebfn ph\u00e1 ho\u1ea1i ho\u00e0n to\u00e0n d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n. Vi\u1ec7c nh\u1eadn bi\u1ebft s\u1edbm c\u00e1c d\u1ea5u hi\u1ec7u v\u00e0 n\u1eafm v\u1eefng c\u00e1ch x\u1eed l\u00fd kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea3o v\u1ec7 t\u00e0i s\u1ea3n s\u1ed1 m\u00e0 c\u00f2n duy tr\u00ec uy t\u00edn. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p th\u00f4ng tin to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c tri\u1ec7u ch\u1ee9ng, nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p kh\u1eafc ph\u1ee5c hi\u1ec7u qu\u1ea3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Dau-hieu-VPS-bi-nhiem-malware\"><\/span>D\u1ea5u hi\u1ec7u VPS b\u1ecb nhi\u1ec5m malware<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nh\u1eadn di\u1ec7n s\u1edbm c\u00e1c tri\u1ec7u ch\u1ee9ng b\u1ea5t th\u01b0\u1eddng l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean v\u00e0 quan tr\u1ecdng \u0111\u1ec3 x\u1eed l\u00fd malware tr\u00ean VPS. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o m\u00e0 b\u1ea1n c\u1ea7n ch\u00fa \u00fd.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware.jpg\" alt=\"VPS b\u1ecb nhi\u1ec5m malware\" width=\"600\" height=\"400\" class=\"aligncenter size-full wp-image-29770\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware.jpg 600w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hieu-nang-giam\"><\/span>Hi\u1ec7u n\u0103ng gi\u1ea3m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu VPS c\u1ee7a b\u1ea1n \u0111\u1ed9t nhi\u00ean ho\u1ea1t \u0111\u1ed9ng ch\u1eadm ch\u1ea1p, <a href=\"https:\/\/interdata.vn\/blog\/website-la-gi\/\">website<\/a> t\u1ea3i l\u00e2u h\u01a1n m\u1ee9c b\u00ecnh th\u01b0\u1eddng, ho\u1eb7c c\u00e1c t\u00e1c v\u1ee5 x\u1eed l\u00fd y\u00eau c\u1ea7u m\u1ea5t nhi\u1ec1u th\u1eddi gian, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u. Malware th\u01b0\u1eddng ti\u00eau t\u1ed1n t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng, g\u00e2y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t chung.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hoat-dong-bat-thuong-cua-phan-mem\"><\/span>Ho\u1ea1t \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng c\u1ee7a ph\u1ea7n m\u1ec1m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c \u1ee9ng d\u1ee5ng ho\u1eb7c d\u1ecbch v\u1ee5 tr\u00ean VPS c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng d\u1eebng ho\u1ea1t \u0111\u1ed9ng (crash), kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u1ed9t c\u00e1ch ng\u1eabu nhi\u00ean, ho\u1eb7c xu\u1ea5t hi\u1ec7n c\u00e1c l\u1ed7i kh\u00f4ng r\u00f5 nguy\u00ean nh\u00e2n. Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i c\u00f3 th\u1ec3 can thi\u1ec7p v\u00e0o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh h\u1ee3p l\u1ec7.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xuat-hien-quang-cao-khong-mong-muon\"><\/span>Xu\u1ea5t hi\u1ec7n qu\u1ea3ng c\u00e1o kh\u00f4ng mong mu\u1ed1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu website c\u1ee7a b\u1ea1n \u0111\u1eb7t tr\u00ean VPS b\u1eaft \u0111\u1ea7u hi\u1ec3n th\u1ecb c\u00e1c pop-up, banner qu\u1ea3ng c\u00e1o l\u1ea1, ho\u1eb7c t\u1ef1 \u0111\u1ed9ng chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng sang c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/page-la-gi\/\">trang web<\/a> kh\u00e1c, \u0111\u00e2y l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u r\u00f5 r\u00e0ng. Malware th\u01b0\u1eddng ch\u00e8n m\u00e3 \u0111\u1ed9c \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh vi n\u00e0y nh\u1eb1m tr\u1ee5c l\u1ee3i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tai-nguyen-he-thong-tieu-hao-bat-thuong\"><\/span>T\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng ti\u00eau hao b\u1ea5t th\u01b0\u1eddng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra th\u1ea5y <a href=\"https:\/\/interdata.vn\/blog\/cpu-server\/\">CPU<\/a> (Central Processing Unit &#8211; B\u1ed9 x\u1eed l\u00fd trung t\u00e2m), <a href=\"https:\/\/interdata.vn\/blog\/ram-server\/\">RAM<\/a> (Random Access Memory &#8211; B\u1ed9 nh\u1edb truy c\u1eadp ng\u1eabu nhi\u00ean), ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/bang-thong-la-gi\/\">b\u0103ng th\u00f4ng<\/a> m\u1ea1ng (Network usage) t\u0103ng v\u1ecdt m\u1ed9t c\u00e1ch b\u1ea5t th\u01b0\u1eddng. T\u00ecnh tr\u1ea1ng n\u00e0y kh\u00f4ng t\u01b0\u01a1ng x\u1ee9ng v\u1edbi l\u01b0\u1ee3ng truy c\u1eadp th\u1ef1c t\u1ebf c\u1ee7a ng\u01b0\u1eddi d\u00f9ng tr\u00ean website.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Trang-chu-trinh-duyet-thay-doi\"><\/span>Trang ch\u1ee7 tr\u00ecnh duy\u1ec7t thay \u0111\u1ed5i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed1i v\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/vps-windows-la-gi\/\">VPS Windows<\/a> c\u00f3 giao di\u1ec7n \u0111\u1ed3 h\u1ecda (GUI &#8211; Graphical <a href=\"https:\/\/interdata.vn\/blog\/ui-la-gi\/\">User Interface<\/a>), n\u1ebfu <a href=\"https:\/\/interdata.vn\/blog\/homepage-la-gi\/\">trang ch\u1ee7<\/a> m\u1eb7c \u0111\u1ecbnh c\u1ee7a tr\u00ecnh duy\u1ec7t web b\u1ecb thay \u0111\u1ed5i m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 cho ph\u00e9p c\u1ee7a b\u1ea1n, \u0111\u00e2y l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u \u0111\u00e1ng ng\u1edd. Ho\u1eb7c, website b\u1ea1n host tr\u00ean VPS b\u1ea5t ng\u1edd hi\u1ec3n th\u1ecb m\u1ed9t trang ch\u1ee7 ho\u00e0n to\u00e0n xa l\u1ea1.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thanh-cong-cu-tien-ich-mo-rong-la-xuat-hien\"><\/span>Thanh c\u00f4ng c\u1ee5, ti\u1ec7n \u00edch m\u1edf r\u1ed9ng l\u1ea1 xu\u1ea5t hi\u1ec7n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u01b0\u01a1ng t\u1ef1, n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng VPS Windows c\u00f3 GUI, vi\u1ec7c c\u00e1c thanh c\u00f4ng c\u1ee5 (toolbars) ho\u1eb7c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (extensions) l\u1ea1 t\u1ef1 \u0111\u1ed9ng c\u00e0i \u0111\u1eb7t v\u00e0o tr\u00ecnh duy\u1ec7t c\u0169ng l\u00e0 m\u1ed9t c\u1ea3nh b\u00e1o. Ch\u00fang c\u00f3 th\u1ec3 theo d\u00f5i ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c hi\u1ec3n th\u1ecb th\u00eam qu\u1ea3ng c\u00e1o.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phan-mem-chong-virus-khong-hoat-dong\"><\/span>Ph\u1ea7n m\u1ec1m ch\u1ed1ng virus kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ph\u1ea7n m\u1ec1m di\u1ec7t virus ho\u1eb7c ch\u1ed1ng malware b\u1ea1n \u0111\u00e3 c\u00e0i \u0111\u1eb7t tr\u00ean VPS \u0111\u1ed9t nhi\u00ean b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a, kh\u00f4ng th\u1ec3 c\u1eadp nh\u1eadt c\u01a1 s\u1edf d\u1eef li\u1ec7u virus, ho\u1eb7c li\u00ean t\u1ee5c b\u00e1o l\u1ed7i kh\u00f4ng r\u00f5 l\u00fd do. Nhi\u1ec1u lo\u1ea1i malware \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh b\u1ea3o m\u1eadt tr\u01b0\u1edbc ti\u00ean.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dung-luong-o-cung-giam-bat-thuong\"><\/span>Dung l\u01b0\u1ee3ng \u1ed5 c\u1ee9ng gi\u1ea3m b\u1ea5t th\u01b0\u1eddng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u00f4ng gian l\u01b0u tr\u1eef tr\u00ean \u1ed5 c\u1ee9ng VPS c\u1ee7a b\u1ea1n b\u1ecb chi\u1ebfm d\u1ee5ng m\u1ed9t c\u00e1ch nhanh ch\u00f3ng m\u00e0 kh\u00f4ng ph\u1ea3i do b\u1ea1n t\u1ea3i l\u00ean d\u1eef li\u1ec7u m\u1edbi. Malware c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c file r\u00e1c, file log kh\u1ed5ng l\u1ed3, ho\u1eb7c c\u00e1c file \u1ea9n ch\u1ee9a m\u00e3 \u0111\u1ed9c, l\u00e0m \u0111\u1ea7y \u1ed5 c\u1ee9ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Internet-hoat-dong-tang-cao-khong-ro-nguyen-nhan\"><\/span>Internet ho\u1ea1t \u0111\u1ed9ng t\u0103ng cao kh\u00f4ng r\u00f5 nguy\u00ean nh\u00e2n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>B\u1ea1n nh\u1eadn th\u1ea5y b\u0103ng th\u00f4ng m\u1ea1ng c\u1ee7a VPS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf m\u1ee9c r\u1ea5t cao, ngay c\u1ea3 khi kh\u00f4ng c\u00f3 nhi\u1ec1u truy c\u1eadp ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng t\u1ea3i file l\u1edbn n\u00e0o di\u1ec5n ra. VPS c\u00f3 th\u1ec3 \u0111\u00e3 b\u1ecb bi\u1ebfn th\u00e0nh m\u1ed9t ph\u1ea7n c\u1ee7a <a href=\"https:\/\/interdata.vn\/blog\/botnet-la-gi\/\">botnet<\/a>, th\u1ef1c hi\u1ec7n g\u1eedi email spam ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/ddos-la-gi\/\">t\u1ea5n c\u00f4ng DDoS<\/a> (Distributed Denial of Service &#8211; T\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 ph\u00e2n t\u00e1n).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"He-thong-lien-tuc-gap-su-co\"><\/span>H\u1ec7 th\u1ed1ng li\u00ean t\u1ee5c g\u1eb7p s\u1ef1 c\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>VPS c\u1ee7a b\u1ea1n th\u01b0\u1eddng xuy\u00ean b\u1ecb treo, t\u1ef1 \u0111\u1ed9ng kh\u1edfi \u0111\u1ed9ng l\u1ea1i (reboot), ho\u1eb7c c\u00e1c d\u1ecbch v\u1ee5 quan tr\u1ecdng (<a href=\"https:\/\/interdata.vn\/blog\/nhan-cpu-la-gi\/\">core<\/a> services) nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/web-server\/\">web server<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/database-server-la-gi\/\">database server<\/a> li\u00ean t\u1ee5c ng\u1eebng ho\u1ea1t \u0111\u1ed9ng. \u0110\u00e2y l\u00e0 d\u1ea5u hi\u1ec7u cho th\u1ea5y s\u1ef1 b\u1ea5t \u1ed5n nghi\u00eam tr\u1ecdng do malware g\u00e2y ra.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nhung-nguyen-nhan-khien-VPS-bi-nhiem-malware\"><\/span>Nh\u1eefng nguy\u00ean nh\u00e2n khi\u1ebfn VPS b\u1ecb nhi\u1ec5m malware<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hi\u1ec3u r\u00f5 c\u00e1c con \u0111\u01b0\u1eddng l\u00e2y nhi\u1ec5m malware gi\u00fap b\u1ea1n ch\u1ee7 \u0111\u1ed9ng h\u01a1n trong vi\u1ec7c ph\u00f2ng tr\u00e1nh v\u00e0 b\u1ea3o v\u1ec7 VPS. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-01.jpg\" alt=\"VPS b\u1ecb nhi\u1ec5m malware\" width=\"600\" height=\"400\" class=\"aligncenter size-full wp-image-29767\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-01.jpg 600w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-01-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mat-khau-mac-dinh-hoac-yeu\"><\/span>M\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh ho\u1eb7c y\u1ebfu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh do nh\u00e0 cung c\u1ea5p \u0111\u1eb7t s\u1eb5n ho\u1eb7c c\u00e1c m\u1eadt kh\u1ea9u qu\u00e1 \u0111\u01a1n gi\u1ea3n, d\u1ec5 \u0111o\u00e1n (v\u00ed d\u1ee5: &#8220;123456&#8221;, &#8220;password&#8221;, &#8220;admin&#8221;) cho t\u00e0i kho\u1ea3n root, user, database l\u00e0 m\u1ed9t trong nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn. Hacker c\u00f3 c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng d\u00f2 t\u00ecm nh\u1eefng m\u1eadt kh\u1ea9u n\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cai-dat-phan-mem-doc-hai\"><\/span>C\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 v\u00f4 t\u00ecnh t\u1ea3i v\u1ec1 v\u00e0 c\u00e0i \u0111\u1eb7t c\u00e1c ph\u1ea7n m\u1ec1m, script kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c phi\u00ean b\u1ea3n &#8220;nulled&#8221; (b\u1ebb kh\u00f3a) ho\u1eb7c t\u1ea3i t\u1eeb c\u00e1c di\u1ec5n \u0111\u00e0n chia s\u1ebb kh\u00f4ng uy t\u00edn. Nh\u1eefng ph\u1ea7n m\u1ec1m n\u00e0y th\u01b0\u1eddng \u0111\u00e3 b\u1ecb c\u00e0i c\u1eafm s\u1eb5n <a href=\"https:\/\/interdata.vn\/blog\/tan-cong-backdoor-la-gi\/\">backdoor<\/a> ho\u1eb7c malware.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thieu-cap-nhat-phan-mem-va-he-dieu-hanh\"><\/span>Thi\u1ebfu c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u00f4ng th\u01b0\u1eddng xuy\u00ean c\u1eadp nh\u1eadt b\u1ea3n v\u00e1 l\u1ed7i cho <a href=\"https:\/\/interdata.vn\/blog\/he-dieu-hanh\/\">h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/a> (OS &#8211; Operating System), web server (v\u00ed d\u1ee5: <a href=\"https:\/\/interdata.vn\/blog\/apache-la-gi\/\">Apache<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/nginx-la-gi\/\">Nginx<\/a>), CMS (Content Management System &#8211; <a href=\"https:\/\/interdata.vn\/blog\/cms-la-gi\/\">H\u1ec7 qu\u1ea3n tr\u1ecb n\u1ed9i dung<\/a> nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/wordpress-la-gi\/\">WordPress<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/joomla-la-gi\/\">Joomla<\/a>), v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c s\u1ebd t\u1ea1o ra l\u1ed7 h\u1ed5ng. C\u00e1c l\u1ed7 h\u1ed5ng n\u00e0y, m\u1ed9t khi \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1, s\u1ebd b\u1ecb hacker nhanh ch\u00f3ng khai th\u00e1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Truy-cap-cac-trang-web-doc-hai\"><\/span>Truy c\u1eadp c\u00e1c trang web \u0111\u1ed9c h\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng VPS Windows c\u00f3 GUI \u0111\u1ec3 duy\u1ec7t web v\u00e0 truy c\u1eadp v\u00e0o c\u00e1c trang web ch\u1ee9a m\u00e3 \u0111\u1ed9c ho\u1eb7c trang web l\u1eeba \u0111\u1ea3o (<a href=\"https:\/\/interdata.vn\/blog\/tan-cong-phishing-la-gi\/\">phishing<\/a>), malware c\u00f3 th\u1ec3 x\u00e2m nh\u1eadp v\u00e0o VPS. \u0110i\u1ec1u n\u00e0y \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n nh\u01b0ng v\u1eabn l\u00e0 m\u1ed9t nguy c\u01a1 ti\u1ec1m \u1ea9n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mang-khong-an-toan\"><\/span>M\u1ea1ng kh\u00f4ng an to\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>K\u1ebft n\u1ed1i v\u00e0o VPS c\u1ee7a b\u1ea1n th\u00f4ng qua m\u1ed9t m\u1ea1ng Wi-Fi c\u00f4ng c\u1ed9ng kh\u00f4ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a ho\u1eb7c m\u1ed9t m\u1ea1ng n\u1ed9i b\u1ed9 \u0111\u00e3 b\u1ecb x\u00e2m nh\u1eadp c\u00f3 th\u1ec3 khi\u1ebfn th\u00f4ng tin \u0111\u0103ng nh\u1eadp b\u1ecb \u0111\u00e1nh c\u1eafp. Vi\u1ec7c kh\u00f4ng c\u1ea5u h\u00ecnh firewall (<a href=\"https:\/\/interdata.vn\/blog\/tuong-lua-firewall\/\">t\u01b0\u1eddng l\u1eeda<\/a>) \u0111\u00fang c\u00e1ch c\u0169ng l\u00e0m t\u0103ng r\u1ee7i ro.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tan-cong-brute-force\"><\/span>T\u1ea5n c\u00f4ng brute force<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng m\u00e0 hacker s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 th\u1eed li\u00ean t\u1ee5c c\u00e1c Kombination t\u00ean ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1eadt kh\u1ea9u kh\u00e1c nhau cho \u0111\u1ebfn khi t\u00ecm ra th\u00f4ng tin \u0111\u0103ng nh\u1eadp ch\u00ednh x\u00e1c. C\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/ssh-la-gi\/\">SSH<\/a> (Secure Shell), RDP (<a href=\"https:\/\/interdata.vn\/blog\/remote-desktop-protocol-rdp\/\">Remote Desktop Protocol<\/a>), FTP (<a href=\"https:\/\/interdata.vn\/blog\/ftp-la-gi\/\">File Transfer Protocol<\/a>), v\u00e0 trang qu\u1ea3n tr\u1ecb control panel l\u00e0 m\u1ee5c ti\u00eau th\u01b0\u1eddng xuy\u00ean.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tan-cong-tu-phan-mem-co-lo-hong-bao-mat\"><\/span>T\u1ea5n c\u00f4ng t\u1eeb ph\u1ea7n m\u1ec1m c\u00f3 l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/web-application-la-gi\/\">\u1ee9ng d\u1ee5ng web<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/plugin-la-gi\/\">plugin<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/theme-la-gi\/\">theme<\/a> c\u1ee7a CMS, ho\u1eb7c b\u1ea5t k\u1ef3 ph\u1ea7n m\u1ec1m n\u00e0o \u0111ang ch\u1ea1y tr\u00ean VPS n\u1ebfu c\u00f3 <a href=\"https:\/\/interdata.vn\/blog\/lo-hong-bao-mat-la-gi\/\">l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<\/a> ch\u01b0a \u0111\u01b0\u1ee3c v\u00e1 s\u1ebd tr\u1edf th\u00e0nh \u0111i\u1ec3m y\u1ebfu \u0111\u1ec3 hacker khai th\u00e1c. V\u00ed d\u1ee5, m\u1ed9t l\u1ed7 h\u1ed5ng <a href=\"https:\/\/interdata.vn\/blog\/structured-query-language-sql-la-gi\/\">SQL<\/a> Injection c\u00f3 th\u1ec3 cho ph\u00e9p hacker chi\u1ebfm quy\u1ec1n ki\u1ec3m so\u00e1t database.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-cac-thiet-bi-luu-tru-bi-nhiem\"><\/span>S\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef b\u1ecb nhi\u1ec5m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c t\u1ea3i l\u00ean VPS c\u00e1c file t\u1eeb USB, \u1ed5 c\u1ee9ng g\u1eafn ngo\u00e0i, ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 c\u00e1c file backup \u0111\u00e3 b\u1ecb nhi\u1ec5m malware t\u1eeb tr\u01b0\u1edbc c\u0169ng l\u00e0 m\u1ed9t con \u0111\u01b0\u1eddng l\u00e2y nhi\u1ec5m. C\u1ea7n ki\u1ec3m tra k\u1ef9 c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u tr\u01b0\u1edbc khi \u0111\u01b0a l\u00ean server.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Email-doc-hai\"><\/span>Email \u0111\u1ed9c h\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu VPS c\u1ee7a b\u1ea1n c\u00f3 c\u00e0i \u0111\u1eb7t mail server ho\u1eb7c ng\u01b0\u1eddi d\u00f9ng ki\u1ec3m tra email tr\u1ef1c ti\u1ebfp tr\u00ean VPS (th\u01b0\u1eddng l\u00e0 VPS Windows), vi\u1ec7c m\u1edf c\u00e1c file \u0111\u00ednh k\u00e8m \u0111\u00e1ng ng\u1edd ho\u1eb7c nh\u1ea5p v\u00e0o c\u00e1c li\u00ean k\u1ebft l\u1eeba \u0111\u1ea3o trong email c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c malware \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quang-cao-doc-hai-Malvertising\"><\/span>Qu\u1ea3ng c\u00e1o \u0111\u1ed9c h\u1ea1i (Malvertising)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi duy\u1ec7t web t\u1eeb VPS c\u00f3 GUI, vi\u1ec7c nh\u1ea5p v\u00e0o c\u00e1c qu\u1ea3ng c\u00e1o \u0111\u00e3 b\u1ecb hacker ch\u00e8n m\u00e3 \u0111\u1ed9c c\u00f3 th\u1ec3 khi\u1ebfn VPS b\u1ecb nhi\u1ec5m. C\u00e1c m\u1ea1ng qu\u1ea3ng c\u00e1o \u0111\u00f4i khi c\u0169ng c\u00f3 th\u1ec3 v\u00f4 t\u00ecnh ph\u00e2n ph\u1ed1i c\u00e1c qu\u1ea3ng c\u00e1o \u0111\u1ed9c h\u1ea1i n\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"FTP-khong-an-toan\"><\/span>FTP kh\u00f4ng an to\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1eed d\u1ee5ng giao th\u1ee9c FTP truy\u1ec1n th\u1ed1ng kh\u00f4ng m\u00e3 h\u00f3a (thay v\u00ec <a href=\"https:\/\/interdata.vn\/blog\/sftp-la-gi\/\">SFTP<\/a> &#8211; SSH File Transfer Protocol ho\u1eb7c FTPS &#8211; FTP Secure) khi\u1ebfn th\u00f4ng tin \u0111\u0103ng nh\u1eadp v\u00e0 d\u1eef li\u1ec7u truy\u1ec1n \u0111i c\u00f3 th\u1ec3 b\u1ecb b\u1eaft g\u00f3i tin (sniffing) n\u1ebfu hacker ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c m\u1ed9t ph\u1ea7n c\u1ee7a m\u1ea1ng l\u01b0\u1edbi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Phan-quyen-khong-an-toan\"><\/span>Ph\u00e2n quy\u1ec1n kh\u00f4ng an to\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u1ea5u h\u00ecnh sai quy\u1ec1n truy c\u1eadp cho c\u00e1c file v\u00e0 th\u01b0 m\u1ee5c tr\u00ean VPS l\u00e0 m\u1ed9t l\u1ed7i nghi\u00eam tr\u1ecdng. V\u00ed d\u1ee5, vi\u1ec7c g\u00e1n quy\u1ec1n 777 (cho ph\u00e9p \u0111\u1ecdc, ghi, th\u1ef1c thi b\u1edfi t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi) cho c\u00e1c th\u01b0 m\u1ee5c nh\u1ea1y c\u1ea3m c\u00f3 th\u1ec3 cho ph\u00e9p hacker t\u1ea3i l\u00ean shell ho\u1eb7c m\u00e3 \u0111\u1ed9c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Bugs-cua-ma-nguon-mo\"><\/span>Bugs c\u1ee7a m\u00e3 ngu\u1ed3n m\u1edf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1eb7c d\u00f9 <a href=\"https:\/\/interdata.vn\/blog\/open-source-la-gi\/\">m\u00e3 ngu\u1ed3n m\u1edf<\/a> mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch, nh\u01b0ng \u0111\u00f4i khi ch\u00fang c\u0169ng c\u00f3 th\u1ec3 ch\u1ee9a c\u00e1c l\u1ed7i (bugs) ho\u1eb7c l\u1ed7 h\u1ed5ng ch\u01b0a \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n (zero-day vulnerabilities). N\u1ebfu kh\u00f4ng c\u1eadp nh\u1eadt k\u1ecbp th\u1eddi khi b\u1ea3n v\u00e1 \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh, VPS c\u1ee7a b\u1ea1n s\u1ebd g\u1eb7p nguy hi\u1ec3m.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Khong-su-dung-tuong-lua\"><\/span>Kh\u00f4ng s\u1eed d\u1ee5ng t\u01b0\u1eddng l\u1eeda<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u01b0\u1eddng l\u1eeda (firewall) \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t r\u00e0o c\u1ea3n, ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng ra v\u00e0o VPS. Vi\u1ec7c kh\u00f4ng c\u00e0i \u0111\u1eb7t ho\u1eb7c kh\u00f4ng c\u1ea5u h\u00ecnh \u0111\u00fang t\u01b0\u1eddng l\u1eeda s\u1ebd khi\u1ebfn VPS ph\u01a1i b\u00e0y tr\u01b0\u1edbc nhi\u1ec1u lo\u1ea1i t\u1ea5n c\u00f4ng t\u1eeb <a href=\"https:\/\/interdata.vn\/blog\/mang-internet\/\">internet<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Khong-su-dung-phan-mem-chong-virus\"><\/span>Kh\u00f4ng s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m ch\u1ed1ng virus<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1eb7c d\u00f9 kh\u00f4ng ph\u1ea3i l\u00e0 gi\u1ea3i ph\u00e1p tuy\u1ec7t \u0111\u1ed1i, vi\u1ec7c c\u00e0i \u0111\u1eb7t m\u1ed9t ph\u1ea7n m\u1ec1m ch\u1ed1ng virus\/anti-malware uy t\u00edn v\u00e0 c\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 lo\u1ea1i b\u1ecf m\u1ed9t s\u1ed1 lo\u1ea1i malware ph\u1ed5 bi\u1ebfn tr\u00ean VPS, \u0111\u1eb7c bi\u1ec7t l\u00e0 VPS Windows.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-dich-vu-khong-an-toan\"><\/span>S\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 kh\u00f4ng an to\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ch\u1ea1y c\u00e1c d\u1ecbch v\u1ee5 m\u1ea1ng \u0111\u00e3 l\u1ed7i th\u1eddi, kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, ho\u1eb7c c\u00f3 c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn (v\u00ed d\u1ee5, m\u1ed9t phi\u00ean b\u1ea3n <a href=\"https:\/\/interdata.vn\/blog\/php-la-gi\/\">PHP<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/mysql-la-gi\/\">MySQL<\/a> c\u0169) l\u00e0m t\u0103ng nguy c\u01a1 b\u1ecb t\u1ea5n c\u00f4ng v\u00e0 nhi\u1ec5m malware.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach-xu-ly-khi-phat-hien-VPS-bi-nhiem-malware\"><\/span>C\u00e1ch x\u1eed l\u00fd khi ph\u00e1t hi\u1ec7n VPS b\u1ecb nhi\u1ec5m malware<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Khi \u0111\u00e3 x\u00e1c \u0111\u1ecbnh VPS c\u00f3 d\u1ea5u hi\u1ec7u nhi\u1ec5m malware, b\u1ea1n c\u1ea7n h\u00e0nh \u0111\u1ed9ng nhanh ch\u00f3ng v\u00e0 c\u00f3 ph\u01b0\u01a1ng ph\u00e1p. InterData khuy\u1ebfn ngh\u1ecb th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-02.jpg\" alt=\"VPS b\u1ecb nhi\u1ec5m malware\" width=\"600\" height=\"400\" class=\"aligncenter size-full wp-image-29768\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-02.jpg 600w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-02-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-1-Cach-ly-VPS-ngay-lap-tuc\"><\/span>B\u01b0\u1edbc 1: C\u00e1ch ly VPS ngay l\u1eadp t\u1ee9c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u00e0nh \u0111\u1ed9ng \u0111\u1ea7u ti\u00ean v\u00e0 quan tr\u1ecdng nh\u1ea5t l\u00e0 ng\u1eaft k\u1ebft n\u1ed1i m\u1ea1ng c\u1ee7a VPS. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n malware ti\u1ebfp t\u1ee5c l\u00e2y <a href=\"https:\/\/interdata.vn\/blog\/mang-lan\/\">lan<\/a> sang c\u00e1c server kh\u00e1c trong c\u00f9ng h\u1ec7 th\u1ed1ng (n\u1ebfu c\u00f3) v\u00e0 c\u1eaft \u0111\u1ee9t li\u00ean l\u1ea1c c\u1ee7a malware v\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/may-chu-server-la-gi\/\">m\u00e1y ch\u1ee7<\/a> \u0111i\u1ec1u khi\u1ec3n v\u00e0 ch\u1ec9 huy (C&amp;amp;C server) c\u1ee7a hacker. B\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c n\u00e0y th\u00f4ng qua control panel c\u1ee7a nh\u00e0 cung c\u1ea5p VPS ho\u1eb7c b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i c\u00e0i \u0111\u1eb7t firewall.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-2-Xac-dinh-loai-malware-va-muc-do-lay-nhiem\"><\/span>B\u01b0\u1edbc 2: X\u00e1c \u0111\u1ecbnh lo\u1ea1i malware v\u00e0 m\u1ee9c \u0111\u1ed9 l\u00e2y nhi\u1ec5m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sau khi c\u00e1ch ly, b\u1ea1n c\u1ea7n c\u1ed1 g\u1eafng x\u00e1c \u0111\u1ecbnh lo\u1ea1i malware \u0111ang t\u1ea5n c\u00f4ng v\u00e0 ph\u1ea1m vi \u1ea3nh h\u01b0\u1edfng c\u1ee7a n\u00f3. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 qu\u00e9t malware chuy\u00ean d\u1ee5ng cho server (v\u00ed d\u1ee5: ClamAV cho <a href=\"https:\/\/interdata.vn\/blog\/he-dieu-hanh-linux-la-gi\/\">Linux<\/a>, Malwarebytes cho Windows). Ki\u1ec3m tra k\u1ef9 c\u00e1c file log h\u1ec7 th\u1ed1ng, log c\u1ee7a web server, v\u00e0 danh s\u00e1ch c\u00e1c ti\u1ebfn tr\u00ecnh (processes) \u0111ang ch\u1ea1y \u0111\u1ec3 t\u00ecm c\u00e1c d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng ho\u1eb7c c\u00e1c file\/ti\u1ebfn tr\u00ecnh l\u1ea1.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-3-Len-ke-hoach-go-bo-hoac-khoi-phuc\"><\/span>B\u01b0\u1edbc 3: L\u00ean k\u1ebf ho\u1ea1ch g\u1ee1 b\u1ecf ho\u1eb7c kh\u00f4i ph\u1ee5c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng, b\u1ea1n c\u00f3 ba h\u01b0\u1edbng x\u1eed l\u00fd ch\u00ednh:<\/p>\n<ol>\n<li><strong>C\u1ed1 g\u1eafng l\u00e0m s\u1ea1ch:<\/strong> N\u1ebfu malware kh\u00f4ng qu\u00e1 ph\u1ee9c t\u1ea1p v\u00e0 b\u1ea1n c\u00f3 \u0111\u1ee7 ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt.<\/li>\n<li><strong>Kh\u00f4i ph\u1ee5c t\u1eeb b\u1ea3n sao l\u01b0u (backup):<\/strong> N\u1ebfu b\u1ea1n c\u00f3 m\u1ed9t b\u1ea3n backup s\u1ea1ch g\u1ea7n \u0111\u00e2y. \u0110\u00e2y th\u01b0\u1eddng l\u00e0 gi\u1ea3i ph\u00e1p an to\u00e0n v\u00e0 nhanh ch\u00f3ng nh\u1ea5t.<\/li>\n<li><strong>C\u00e0i \u0111\u1eb7t l\u1ea1i ho\u00e0n to\u00e0n VPS (rebuild):<\/strong> N\u1ebfu t\u00ecnh h\u00ecnh qu\u00e1 nghi\u00eam tr\u1ecdng ho\u1eb7c kh\u00f4ng ch\u1eafc ch\u1eafn \u0111\u00e3 lo\u1ea1i b\u1ecf h\u1ebft malware.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-4-Thuc-hien-go-bo-malware-neu-chon-lam-sach\"><\/span>B\u01b0\u1edbc 4: Th\u1ef1c hi\u1ec7n g\u1ee1 b\u1ecf malware (n\u1ebfu ch\u1ecdn l\u00e0m s\u1ea1ch)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu quy\u1ebft \u0111\u1ecbnh t\u1ef1 g\u1ee1 b\u1ecf, b\u1ea1n c\u1ea7n x\u00f3a c\u00e1c file \u0111\u1ed9c h\u1ea1i \u0111\u00e3 x\u00e1c \u0111\u1ecbnh, lo\u1ea1i b\u1ecf c\u00e1c ti\u1ebfn tr\u00ecnh \u0111\u00e1ng ng\u1edd, v\u00e0 s\u1eeda ch\u1eefa c\u00e1c thay \u0111\u1ed5i m\u00e0 malware \u0111\u00e3 g\u00e2y ra (v\u00ed d\u1ee5: kh\u00f4i ph\u1ee5c file h\u1ec7 th\u1ed1ng b\u1ecb s\u1eeda \u0111\u1ed5i, x\u00f3a c\u00e1c user l\u1ea1). S\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh nh\u01b0 rm (remove), kill trong Linux, ho\u1eb7c c\u00e1c c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng. H\u00e3y c\u1ea9n th\u1eadn \u0111\u1ec3 kh\u00f4ng x\u00f3a nh\u1ea7m file h\u1ec7 th\u1ed1ng quan tr\u1ecdng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-5-Khoi-phuc-du-lieu-tu-ban-sao-luu-sach-Neu-co\"><\/span>B\u01b0\u1edbc 5: Kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u t\u1eeb b\u1ea3n sao l\u01b0u s\u1ea1ch (N\u1ebfu c\u00f3)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n c\u00f3 b\u1ea3n <a href=\"https:\/\/interdata.vn\/blog\/backup-restore-du-lieu-vps\/\">sao l\u01b0u VPS<\/a> \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc th\u1eddi \u0111i\u1ec3m nghi ng\u1edd nhi\u1ec5m malware, h\u00e3y kh\u00f4i ph\u1ee5c t\u1eeb \u0111\u00f3. Tr\u01b0\u1edbc khi kh\u00f4i ph\u1ee5c, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n sao l\u01b0u \u0111\u00f3 th\u1ef1c s\u1ef1 &#8220;s\u1ea1ch&#8221;. Sau khi kh\u00f4i ph\u1ee5c, v\u1eabn c\u1ea7n ki\u1ec3m tra l\u1ea1i \u0111\u1ec3 ch\u1eafc ch\u1eafn malware kh\u00f4ng t\u1ed3n t\u1ea1i trong b\u1ea3n backup.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-6-Thay-doi-toan-bo-thong-tin-dang-nhap\"><\/span>B\u01b0\u1edbc 6: Thay \u0111\u1ed5i to\u00e0n b\u1ed9 th\u00f4ng tin \u0111\u0103ng nh\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ngay sau khi x\u1eed l\u00fd malware ho\u1eb7c kh\u00f4i ph\u1ee5c, b\u1ea1n ph\u1ea3i thay \u0111\u1ed5i t\u1ea5t c\u1ea3 c\u00e1c m\u1eadt kh\u1ea9u quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m m\u1eadt kh\u1ea9u t\u00e0i kho\u1ea3n root\/administrator, t\u1ea5t c\u1ea3 t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng tr\u00ean VPS, m\u1eadt kh\u1ea9u database, m\u1eadt kh\u1ea9u t\u00e0i kho\u1ea3n FTP, API keys, v\u00e0 m\u1eadt kh\u1ea9u qu\u1ea3n tr\u1ecb c\u1ee7a c\u00e1c website\/CMS. S\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh v\u00e0 duy nh\u1ea5t cho m\u1ed7i t\u00e0i kho\u1ea3n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-7-Ra-soat-va-va-cac-lo-hong-bao-mat\"><\/span>B\u01b0\u1edbc 7: R\u00e0 so\u00e1t v\u00e0 v\u00e1 c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Malware th\u01b0\u1eddng x\u00e2m nh\u1eadp qua c\u00e1c l\u1ed7 h\u1ed5ng. V\u00ec v\u1eady, sau khi x\u1eed l\u00fd, h\u00e3y c\u1eadp nh\u1eadt ngay h\u1ec7 \u0111i\u1ec1u h\u00e0nh, t\u1ea5t c\u1ea3 ph\u1ea7n m\u1ec1m, \u1ee9ng d\u1ee5ng, plugin, theme l\u00ean phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t. Ki\u1ec3m tra l\u1ea1i to\u00e0n b\u1ed9 c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt c\u1ee7a VPS, web server, database server v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-8-Theo-doi-va-giam-sat-VPS-chat-che\"><\/span>B\u01b0\u1edbc 8: Theo d\u00f5i v\u00e0 gi\u00e1m s\u00e1t VPS ch\u1eb7t ch\u1ebd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sau khi \u0111\u00e3 l\u00e0m s\u1ea1ch v\u00e0 v\u00e1 l\u1ed7i, b\u1ea1n c\u1ea7n theo d\u00f5i s\u00e1t sao ho\u1ea1t \u0111\u1ed9ng c\u1ee7a VPS trong m\u1ed9t th\u1eddi gian. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng, ki\u1ec3m tra log th\u01b0\u1eddng xuy\u00ean, v\u00e0 c\u00e0i \u0111\u1eb7t h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n x\u00e2m nh\u1eadp (IDS &#8211; Intrusion Detection System) n\u1ebfu c\u00f3 th\u1ec3. \u0110i\u1ec1u n\u00e0y gi\u00fap ph\u00e1t hi\u1ec7n s\u1edbm n\u1ebfu malware quay tr\u1edf l\u1ea1i ho\u1eb7c c\u00f3 d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng m\u1edbi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Buoc-9-Can-nhac-su-tro-giup-tu-chuyen-gia\"><\/span>B\u01b0\u1edbc 9: C\u00e2n nh\u1eafc s\u1ef1 tr\u1ee3 gi\u00fap t\u1eeb chuy\u00ean gia<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n kh\u00f4ng c\u00f3 \u0111\u1ee7 ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt, c\u1ea3m th\u1ea5y qu\u00e1 tr\u00ecnh x\u1eed l\u00fd qu\u00e1 ph\u1ee9c t\u1ea1p, ho\u1eb7c kh\u00f4ng ch\u1eafc ch\u1eafn \u0111\u00e3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n malware, \u0111\u1eebng ng\u1ea7n ng\u1ea1i t\u00ecm \u0111\u1ebfn s\u1ef1 gi\u00fap \u0111\u1ee1 c\u1ee7a c\u00e1c chuy\u00ean gia ho\u1eb7c d\u1ecbch v\u1ee5 g\u1ee1 malware chuy\u00ean nghi\u1ec7p. InterData c\u00f3 \u0111\u1ed9i ng\u0169 chuy\u00ean gia s\u1eb5n s\u00e0ng h\u1ed7 tr\u1ee3 b\u1ea1n trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Bien-phap-phong-ngua-VPS-bi-nhiem-malware-hieu-qua\"><\/span>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba VPS b\u1ecb nhi\u1ec5m malware hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ph\u00f2ng b\u1ec7nh h\u01a1n ch\u1eefa b\u1ec7nh. Ch\u1ee7 \u0111\u1ed9ng \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt s\u1ebd gi\u00fap gi\u1ea3m thi\u1ec3u \u0111\u00e1ng k\u1ec3 nguy c\u01a1 VPS b\u1ecb nhi\u1ec5m malware.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-03.jpg\" alt=\"VPS b\u1ecb nhi\u1ec5m malware\" width=\"600\" height=\"400\" class=\"aligncenter size-full wp-image-29769\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-03.jpg 600w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/06\/VPS-bi-nhiem-malware-03-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-mat-khau-manh-va-xac-thuc-hai-yeu-to-2FA\"><\/span>S\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh v\u00e0 x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 (2FA)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Lu\u00f4n t\u1ea1o m\u1eadt kh\u1ea9u ph\u1ee9c t\u1ea1p, k\u1ebft h\u1ee3p ch\u1eef hoa, ch\u1eef th\u01b0\u1eddng, s\u1ed1 v\u00e0 k\u00fd t\u1ef1 \u0111\u1eb7c bi\u1ec7t, v\u1edbi \u0111\u1ed9 d\u00e0i t\u1ed1i thi\u1ec3u 12-16 k\u00fd t\u1ef1. S\u1eed d\u1ee5ng tr\u00ecnh qu\u1ea3n l\u00fd m\u1eadt kh\u1ea9u \u0111\u1ec3 l\u01b0u tr\u1eef an to\u00e0n. Quan tr\u1ecdng h\u01a1n, h\u00e3y k\u00edch ho\u1ea1t X\u00e1c th\u1ef1c Hai Y\u1ebfu t\u1ed1 (2FA &#8211; Two-Factor <a href=\"https:\/\/interdata.vn\/blog\/authentication-la-gi\/\">Authentication<\/a>) cho t\u1ea5t c\u1ea3 c\u00e1c t\u00e0i kho\u1ea3n qu\u1ea3n tr\u1ecb VPS v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 quan tr\u1ecdng b\u1ea5t c\u1ee9 khi n\u00e0o c\u00f3 th\u1ec3.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cap-nhat-he-dieu-hanh-va-phan-mem-thuong-xuyen\"><\/span>C\u1eadp nh\u1eadt h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 ph\u1ea7n m\u1ec1m th\u01b0\u1eddng xuy\u00ean<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng bi\u1ec7n ph\u00e1p quan tr\u1ecdng nh\u1ea5t. Thi\u1ebft l\u1eadp c\u01a1 ch\u1ebf t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt ho\u1eb7c l\u00ean l\u1ecbch ki\u1ec3m tra v\u00e0 c\u1eadp nh\u1eadt th\u1ee7 c\u00f4ng th\u01b0\u1eddng xuy\u00ean cho h\u1ec7 \u0111i\u1ec1u h\u00e0nh, web server, database, PHP, CMS (WordPress, Joomla, <a href=\"https:\/\/interdata.vn\/blog\/drupal-la-gi\/\">Drupal<\/a>) c\u00f9ng c\u00e1c plugin v\u00e0 theme c\u1ee7a ch\u00fang. C\u00e1c b\u1ea3n v\u00e1 th\u01b0\u1eddng s\u1eeda l\u1ed7i b\u1ea3o m\u1eadt \u0111\u00e3 b\u1ecb hacker nh\u1eafm t\u1edbi.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cai-dat-va-cau-hinh-Firewall-Tuong-lua\"><\/span>C\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh Firewall (T\u01b0\u1eddng l\u1eeda)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>T\u01b0\u1eddng l\u1eeda gi\u00fap ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp v\u00e0o v\u00e0 ra kh\u1ecfi VPS. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/ufw-la-gi\/\">UFW<\/a> (Uncomplicated Firewall) ho\u1eb7c <a href=\"https:\/\/interdata.vn\/blog\/firewalld-la-gi\/\">firewalld<\/a> tr\u00ean Linux, Windows Firewall tr\u00ean <a href=\"https:\/\/interdata.vn\/blog\/windows-server-la-gi\/\">Windows Server<\/a>, ho\u1eb7c c\u00e1c gi\u1ea3i ph\u00e1p t\u01b0\u1eddng l\u1eeda chuy\u00ean d\u1ee5ng nh\u01b0 CSF (ConfigServer Security &amp; Firewall). Ch\u1ec9 m\u1edf c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/port-la-gi\/\">port<\/a> c\u1ea7n thi\u1ebft cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a d\u1ecbch v\u1ee5.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-phan-mem-diet-virus-va-chong-malware\"><\/span>S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m di\u1ec7t virus v\u00e0 ch\u1ed1ng malware<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed1i v\u1edbi VPS Windows, vi\u1ec7c c\u00e0i \u0111\u1eb7t m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh di\u1ec7t virus uy t\u00edn l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft. V\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/vps-linux-la-gi\/\">VPS Linux<\/a>, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 ClamAV \u0111\u1ec3 qu\u00e9t malware \u0111\u1ecbnh k\u1ef3, ho\u1eb7c Maldet (Linux Malware Detect) \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c web shell v\u00e0 m\u00e3 \u0111\u1ed9c kh\u00e1c. Lu\u00f4n c\u1eadp nh\u1eadt c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a c\u00e1c ph\u1ea7n m\u1ec1m n\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Gioi-han-quyen-truy-cap-Principle-of-Least-Privilege\"><\/span>Gi\u1edbi h\u1ea1n quy\u1ec1n truy c\u1eadp (Principle of Least Privilege)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u00f4ng bao gi\u1edd s\u1eed d\u1ee5ng t\u00e0i kho\u1ea3n root (Linux) ho\u1eb7c Administrator (Windows) cho c\u00e1c t\u00e1c v\u1ee5 h\u00e0ng ng\u00e0y. T\u1ea1o c\u00e1c t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng ri\u00eang v\u1edbi quy\u1ec1n h\u1ea1n v\u1eeba \u0111\u1ee7 cho c\u00f4ng vi\u1ec7c c\u1ee7a h\u1ecd. \u0110\u1ed1i v\u1edbi SSH, h\u00e3y v\u00f4 hi\u1ec7u h\u00f3a \u0111\u0103ng nh\u1eadp b\u1eb1ng m\u1eadt kh\u1ea9u cho root v\u00e0 s\u1eed d\u1ee5ng SSH keys. <a href=\"https:\/\/interdata.vn\/blog\/phan-quyen-authorization-la-gi\/\">Ph\u00e2n quy\u1ec1n<\/a> file v\u00e0 th\u01b0 m\u1ee5c m\u1ed9t c\u00e1ch ch\u1eb7t ch\u1ebd.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sao-luu-Backup-VPS-dinh-ky-va-luu-tru-an-toan\"><\/span>Sao l\u01b0u (Backup) VPS \u0111\u1ecbnh k\u1ef3 v\u00e0 l\u01b0u tr\u1eef an to\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Th\u1ef1c hi\u1ec7n sao l\u01b0u to\u00e0n b\u1ed9 VPS ho\u1eb7c \u00edt nh\u1ea5t l\u00e0 c\u00e1c d\u1eef li\u1ec7u quan tr\u1ecdng m\u1ed9t c\u00e1ch th\u01b0\u1eddng xuy\u00ean (h\u00e0ng ng\u00e0y ho\u1eb7c h\u00e0ng tu\u1ea7n, t\u00f9y theo m\u1ee9c \u0111\u1ed9 thay \u0111\u1ed5i d\u1eef li\u1ec7u). Quan tr\u1ecdng l\u00e0 c\u00e1c b\u1ea3n sao l\u01b0u n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u1edf m\u1ed9t n\u01a1i t\u00e1ch bi\u1ec7t v\u1edbi VPS ch\u00ednh (v\u00ed d\u1ee5: m\u1ed9t server kh\u00e1c, d\u1ecbch v\u1ee5 <a href=\"https:\/\/interdata.vn\/blog\/cloud-storage-la-gi\/\">l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y<\/a>). Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 kh\u1ea3 n\u0103ng kh\u00f4i ph\u1ee5c c\u1ee7a c\u00e1c b\u1ea3n sao l\u01b0u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Theo-doi-logs-va-canh-bao-he-thong\"><\/span>Theo d\u00f5i logs v\u00e0 c\u1ea3nh b\u00e1o h\u1ec7 th\u1ed1ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra c\u00e1c file log c\u1ee7a h\u1ec7 th\u1ed1ng (syslog, auth.log), log c\u1ee7a web server (access.log, error.log), v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng ng\u1edd ho\u1eb7c l\u1ed7i b\u1ea5t th\u01b0\u1eddng. C\u00e0i \u0111\u1eb7t c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t c\u00f3 kh\u1ea3 n\u0103ng g\u1eedi c\u1ea3nh b\u00e1o khi c\u00f3 s\u1ef1 c\u1ed1 ho\u1eb7c d\u1ea5u hi\u1ec7u t\u1ea5n c\u00f4ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can-trong-voi-nguon-goc-phan-mem-cai-dat\"><\/span>C\u1ea9n tr\u1ecdng v\u1edbi ngu\u1ed3n g\u1ed1c ph\u1ea7n m\u1ec1m c\u00e0i \u0111\u1eb7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ch\u1ec9 t\u1ea3i v\u00e0 c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m, script, plugin, theme t\u1eeb c\u00e1c trang web ch\u00ednh th\u1ee9c c\u1ee7a nh\u00e0 ph\u00e1t tri\u1ec3n ho\u1eb7c c\u00e1c kho l\u01b0u tr\u1eef (repositories) uy t\u00edn. Tr\u00e1nh xa c\u00e1c ph\u1ea7n m\u1ec1m &#8220;nulled&#8221;, &#8220;cracked&#8221;, ho\u1eb7c kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c v\u00ec ch\u00fang th\u01b0\u1eddng ch\u1ee9a malware ho\u1eb7c backdoor.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Bao-mat-cac-dich-vu-mang-SSH-FTP-Control-Panel\"><\/span>B\u1ea3o m\u1eadt c\u00e1c d\u1ecbch v\u1ee5 m\u1ea1ng (SSH, FTP, Control Panel)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Thay \u0111\u1ed5i port m\u1eb7c \u0111\u1ecbnh c\u1ee7a SSH (th\u01b0\u1eddng l\u00e0 22) sang m\u1ed9t port kh\u00e1c. S\u1eed d\u1ee5ng SFTP ho\u1eb7c SCP thay v\u00ec FTP kh\u00f4ng an to\u00e0n. N\u1ebfu s\u1eed d\u1ee5ng control panel (nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/cpanel\/\">cPanel<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/plesk-la-gi\/\">Plesk<\/a>), h\u00e3y \u0111\u1ea3m b\u1ea3o n\u00f3 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 b\u1ea3o v\u1ec7 b\u1eb1ng m\u1eadt kh\u1ea9u m\u1ea1nh, 2FA. H\u1ea1n ch\u1ebf <a href=\"https:\/\/interdata.vn\/blog\/dia-chi-ip-la-gi\/\">IP<\/a> truy c\u1eadp v\u00e0o c\u00e1c d\u1ecbch v\u1ee5 qu\u1ea3n tr\u1ecb n\u1ebfu c\u00f3 th\u1ec3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mot-so-cau-hoi-thuong-gap-FAQ\"><\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 gi\u1ea3i \u0111\u00e1p cho m\u1ed9t s\u1ed1 th\u1eafc m\u1eafc ph\u1ed5 bi\u1ebfn v\u1ec1 v\u1ea5n \u0111\u1ec1 VPS b\u1ecb nhi\u1ec5m malware:<\/p>\n<p>VPS c\u00f3 th\u1ec3 t\u1ef1 nhi\u1ec5m malware kh\u00f4ng c\u1ea7n c\u00e0i g\u00ec kh\u00f4ng?<\/p>\n<p>C\u00f3. VPS c\u00f3 th\u1ec3 b\u1ecb nhi\u1ec5m malware ngay c\u1ea3 khi b\u1ea1n kh\u00f4ng tr\u1ef1c ti\u1ebfp c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i. C\u00e1c nguy\u00ean nh\u00e2n bao g\u1ed3m: l\u1ed7 h\u1ed5ng trong h\u1ec7 \u0111i\u1ec1u h\u00e0nh ho\u1eb7c ph\u1ea7n m\u1ec1m ch\u01b0a \u0111\u01b0\u1ee3c v\u00e1, m\u1eadt kh\u1ea9u y\u1ebfu b\u1ecb t\u1ea5n c\u00f4ng brute-force, ho\u1eb7c khai th\u00e1c l\u1ed7 h\u1ed5ng c\u1ee7a website \u0111ang ch\u1ea1y tr\u00ean VPS.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nha-cung-cap-VPS-co-go-malware-giup-toi-khong\"><\/span>Nh\u00e0 cung c\u1ea5p VPS c\u00f3 g\u1ee1 malware gi\u00fap t\u00f4i kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i d\u1ecbch v\u1ee5 VPS b\u1ea1n s\u1eed d\u1ee5ng v\u00e0 ch\u00ednh s\u00e1ch c\u1ee7a nh\u00e0 cung c\u1ea5p. V\u1edbi d\u1ecbch v\u1ee5 Unmanaged VPS, b\u1ea1n th\u01b0\u1eddng ph\u1ea3i t\u1ef1 ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 g\u1ee1 malware. V\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/vps-managed-la-gi\/\">Managed VPS<\/a>, nh\u00e0 cung c\u1ea5p c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 n\u00e0o \u0111\u00f3, nh\u01b0ng ph\u1ea1m vi h\u1ed7 tr\u1ee3 s\u1ebd kh\u00e1c nhau. H\u00e3y ki\u1ec3m tra h\u1ee3p \u0111\u1ed3ng d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nen-lam-gi-neu-khong-co-ky-thuat-de-tu-xu-ly\"><\/span>N\u00ean l\u00e0m g\u00ec n\u1ebfu kh\u00f4ng c\u00f3 k\u1ef9 thu\u1eadt \u0111\u1ec3 t\u1ef1 x\u1eed l\u00fd?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>N\u1ebfu b\u1ea1n kh\u00f4ng c\u00f3 \u0111\u1ee7 ki\u1ebfn th\u1ee9c k\u1ef9 thu\u1eadt ho\u1eb7c th\u1eddi gian, c\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 t\u00ecm ki\u1ebfm s\u1ef1 tr\u1ee3 gi\u00fap t\u1eeb c\u00e1c chuy\u00ean gia ho\u1eb7c c\u00f4ng ty cung c\u1ea5p d\u1ecbch v\u1ee5 b\u1ea3o m\u1eadt, g\u1ee1 malware cho VPS. InterData cung c\u1ea5p d\u1ecbch v\u1ee5 chuy\u00ean nghi\u1ec7p \u0111\u1ec3 h\u1ed7 tr\u1ee3 b\u1ea1n trong nh\u1eefng t\u00ecnh hu\u1ed1ng n\u00e0y. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u00ecm s\u1ef1 t\u01b0 v\u1ea5n t\u1eeb c\u00e1c c\u1ed9ng \u0111\u1ed3ng tr\u1ef1c tuy\u1ebfn uy t\u00edn.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Lam-sao-biet-VPS-da-sach-malware-hoan-toan\"><\/span>L\u00e0m sao bi\u1ebft VPS \u0111\u00e3 s\u1ea1ch malware ho\u00e0n to\u00e0n?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ea3m b\u1ea3o 100% VPS \u0111\u00e3 s\u1ea1ch malware l\u00e0 r\u1ea5t kh\u00f3, ngay c\u1ea3 \u0111\u1ed1i v\u1edbi chuy\u00ean gia. Sau khi x\u1eed l\u00fd, vi\u1ec7c quan tr\u1ecdng l\u00e0 ti\u1ebfp t\u1ee5c theo d\u00f5i ch\u1eb7t ch\u1ebd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a VPS, ki\u1ec3m tra log th\u01b0\u1eddng xuy\u00ean, v\u00e0 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 qu\u00e9t. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, n\u1ebfu nghi ng\u1edd cao, vi\u1ec7c c\u00e0i \u0111\u1eb7t l\u1ea1i ho\u00e0n to\u00e0n VPS t\u1eeb \u0111\u1ea7u v\u00e0 kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u t\u1eeb b\u1ea3n backup s\u1ea1ch l\u00e0 gi\u1ea3i ph\u00e1p an to\u00e0n nh\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chi-phi-thue-dich-vu-go-malware-cho-VPS-khoang-bao-nhieu\"><\/span>Chi ph\u00ed thu\u00ea d\u1ecbch v\u1ee5 g\u1ee1 malware cho VPS kho\u1ea3ng bao nhi\u00eau?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Chi ph\u00ed cho d\u1ecbch v\u1ee5 g\u1ee1 malware VPS r\u1ea5t \u0111a d\u1ea1ng, ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee9c \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a t\u00ecnh hu\u1ed1ng, lo\u1ea1i malware, th\u1eddi gian c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u1eed l\u00fd, v\u00e0 uy t\u00edn c\u1ee7a \u0111\u01a1n v\u1ecb cung c\u1ea5p d\u1ecbch v\u1ee5. B\u1ea1n n\u00ean tham kh\u1ea3o v\u00e0 y\u00eau c\u1ea7u b\u00e1o gi\u00e1 t\u1eeb m\u1ed9t v\u00e0i \u0111\u01a1n v\u1ecb \u0111\u1ec3 c\u00f3 s\u1ef1 so s\u00e1nh.<\/p>\n<p>B\u1ea3o v\u1ec7 VPS kh\u1ecfi malware l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c, \u0111\u00f2i h\u1ecfi s\u1ef1 c\u1ea9n tr\u1ecdng v\u00e0 c\u1eadp nh\u1eadt ki\u1ebfn th\u1ee9c th\u01b0\u1eddng xuy\u00ean. B\u1eb1ng vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c d\u1ea5u hi\u1ec7u, nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch x\u1eed l\u00fd, b\u1ea1n c\u00f3 th\u1ec3 gi\u1eef cho VPS c\u1ee7a m\u00ecnh ho\u1ea1t \u0111\u1ed9ng an to\u00e0n v\u00e0 \u1ed5n \u0111\u1ecbnh, \u0111\u00f3ng g\u00f3p v\u00e0o s\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a c\u00e1c d\u1ef1 \u00e1n tr\u1ef1c tuy\u1ebfn. InterData lu\u00f4n s\u1eb5n s\u00e0ng \u0111\u1ed3ng h\u00e0nh v\u00e0 cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u cho h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n.<\/p>\n<p>Tham kh\u1ea3o d\u1ecbch v\u1ee5 <a href=\"https:\/\/interdata.vn\/thue-vps\/\">thu\u00ea VPS gi\u00e1 r\u1ebb &#8211; B\u1ea3o m\u1eadt v\u1edbi t\u01b0\u1eddng l\u1eeda \u0111a l\u1edbp &#8211; H\u1ed7 tr\u1ee3 backup th\u01b0\u1eddng xuy\u00ean<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ed9t Virtual Private Server (VPS) b\u1ecb nhi\u1ec5m malware c\u00f3 th\u1ec3 g\u00e2y ra nhi\u1ec1u h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng, t\u1eeb vi\u1ec7c l\u00e0m ch\u1eadm h\u1ec7 th\u1ed1ng, \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m \u0111\u1ebfn ph\u00e1 ho\u1ea1i ho\u00e0n to\u00e0n d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n. Vi\u1ec7c nh\u1eadn bi\u1ebft s\u1edbm c\u00e1c d\u1ea5u hi\u1ec7u v\u00e0 n\u1eafm v\u1eefng c\u00e1ch x\u1eed l\u00fd kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea3o<\/p>\n","protected":false},"author":2,"featured_media":29770,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[],"class_list":["post-29766","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bao-mat-an-ninh-mang"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/29766","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=29766"}],"version-history":[{"count":1,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/29766\/revisions"}],"predecessor-version":[{"id":29771,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/29766\/revisions\/29771"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/29770"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=29766"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=29766"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=29766"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}