{"id":9645,"date":"2025-05-05T14:03:05","date_gmt":"2025-05-05T07:03:05","guid":{"rendered":"https:\/\/www.careerlink.vn:8443\/cam-nang-viec-lam\/?p=9645"},"modified":"2026-08-05T09:54:07","modified_gmt":"2026-08-05T02:54:07","slug":"backdoor-la-gi","status":"publish","type":"post","link":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/tu-van-nghe-nghiep\/backdoor-la-gi","title":{"rendered":"Backdoor l\u00e0 g\u00ec? C\u00e1ch nh\u1eadn bi\u1ebft v\u00e0 ph\u00f2ng tr\u00e1nh hi\u1ec7u qu\u1ea3"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">B\u1ea3o m\u1eadt th\u00f4ng tin \u0111\u00e3 tr\u1edf th\u00e0nh \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u \u0111\u1ed1i v\u1edbi c\u1ea3 c\u00e1 nh\u00e2n l\u1eabn t\u1ed5 ch\u1ee9c. Khi c\u00e1c m\u1ed1i \u0111e d\u1ecda ng\u00e0y c\u00e0ng tinh vi v\u00e0 kh\u00f3 ph\u00e1t hi\u1ec7n, m\u1ed9t trong nh\u1eefng hi\u1ec3m h\u1ecda \u00e2m th\u1ea7m nh\u01b0ng nguy hi\u1ec3m nh\u1ea5t ch\u00ednh l\u00e0 backdoor \u2013 c\u00f2n g\u1ecdi l\u00e0 \u201cc\u1eeda h\u1eadu\u201d, cho ph\u00e9p truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0o h\u1ec7 th\u1ed1ng m\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng h\u1ec1 hay bi\u1ebft. V\u1eady <strong>backdoor l\u00e0 g\u00ec<\/strong>, n\u00f3 ho\u1ea1t \u0111\u1ed9ng ra sao v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ph\u00f2ng tr\u00e1nh hi\u1ec7u qu\u1ea3? B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 kh\u00e1i ni\u1ec7m n\u00e0y m\u1ed9t c\u00e1ch \u0111\u1ea7y \u0111\u1ee7 v\u00e0 d\u1ec5 hi\u1ec3u.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.careerlink.vn:8443\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/05\/backdoor-la-gi-87232-1024x1024.jpg\" alt=\"Backdoor l\u00e0 g\u00ec\" class=\"wp-image-9646\" srcset=\"https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/05\/05140029\/backdoor-la-gi-87232-1024x1024.jpg 1024w, https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/05\/05140029\/backdoor-la-gi-87232-300x300.jpg 300w, https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/05\/05140029\/backdoor-la-gi-87232-150x150.jpg 150w, https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/05\/05140029\/backdoor-la-gi-87232-768x768.jpg 768w, https:\/\/cl-wpml.careerlink.vn\/cam-nang-viec-lam\/wp-content\/uploads\/2025\/05\/05140029\/backdoor-la-gi-87232.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Backdoor l\u00e0 g\u00ec?<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Backdoor (d\u1ecbch l\u00e0 \u201cc\u1eeda h\u1eadu\u201d) l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef trong l\u0129nh v\u1ef1c an ninh m\u1ea1ng d\u00f9ng \u0111\u1ec3 ch\u1ec9 m\u1ed9t c\u01a1 ch\u1ebf cho ph\u00e9p truy c\u1eadp v\u00e0o h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh, ph\u1ea7n m\u1ec1m ho\u1eb7c m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c th\u00f4ng th\u01b0\u1eddng. <\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c backdoor th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t ng\u1ea7m b\u1edfi tin t\u1eb7c, nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m ho\u1eb7c ch\u00ednh ch\u1ee7 s\u1edf h\u1eefu h\u1ec7 th\u1ed1ng nh\u1eb1m t\u1ea1o m\u1ed9t \u201cl\u1ed1i v\u00e0o b\u00ed m\u1eadt\u201d \u0111\u1ec3 truy c\u1eadp ho\u1eb7c \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi c\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng tr\u1ef1c di\u1ec7n nh\u01b0 virus hay ransomware, backdoor th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng l\u00e9n l\u00fat, kh\u00f3 ph\u00e1t hi\u1ec7n v\u00e0 c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong th\u1eddi gian d\u00e0i m\u00e0 kh\u00f4ng b\u1ecb nghi ng\u1edd. Ch\u00ednh v\u00ec v\u1eady, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111\u1ec3 ki\u1ec3m so\u00e1t h\u1ec7 th\u1ed1ng, \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u, ho\u1eb7c l\u00e0m n\u1ec1n t\u1ea3ng cho c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ti\u1ebfp theo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u r\u00f5 <strong>backdoor l\u00e0 g\u00ec<\/strong> l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 nh\u1eadn di\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c m\u1ed1i nguy ti\u1ec1m \u1ea9n trong m\u00f4i tr\u01b0\u1eddng s\u1ed1 ng\u00e0y c\u00e0ng ph\u1ee9c t\u1ea1p hi\u1ec7n nay.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u00e2n bi\u1ec7t Backdoor v\u1edbi c\u00e1c ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i kh\u00e1c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi an ninh m\u1ea1ng, nhi\u1ec1u kh\u00e1i ni\u1ec7m nh\u01b0 <strong>malware<\/strong>, <strong>trojan<\/strong>, <strong>spyware<\/strong> v\u00e0 <strong>backdoor<\/strong> th\u01b0\u1eddng b\u1ecb nh\u1ea7m l\u1eabn do c\u00f9ng li\u00ean quan \u0111\u1ebfn h\u00e0nh vi x\u00e2m nh\u1eadp ho\u1eb7c ki\u1ec3m so\u00e1t tr\u00e1i ph\u00e9p h\u1ec7 th\u1ed1ng. Tuy nhi\u00ean, m\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 m\u1ee5c \u0111\u00edch ho\u1ea1t \u0111\u1ed9ng ri\u00eang bi\u1ec7t.<\/p>\n<p>Nh\u00ecn t\u1eeb nhu c\u1ea7u tuy\u1ec3n d\u1ee5ng th\u1ef1c t\u1ebf, chuy\u00ean m\u1ee5c CNTT ph\u1ea7n m\u1ec1m tr\u00ean CareerLink hi\u1ec7n c\u00f3 kho\u1ea3ng 438 tin tuy\u1ec3n d\u1ee5ng, m\u1ee9c l\u01b0\u01a1ng ph\u1ed5 bi\u1ebfn dao \u0111\u1ed9ng 8-130 tri\u1ec7u \u0111\u1ed3ng m\u1ed7i th\u00e1ng t\u00f9y c\u1ea5p b\u1eadc v\u00e0 kinh nghi\u1ec7m, ph\u1ea3n \u00e1nh m\u1ee9c \u0111\u1ed9 c\u1ea7n nh\u00e2n l\u1ef1c c\u1ee7a l\u0129nh v\u1ef1c n\u00e0y. B\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o th\u00eam c\u00e1c tin tuy\u1ec3n d\u1ee5ng ng\u00e0nh CNTT ph\u1ea7n m\u1ec1m \u0111\u1ec3 n\u1eafm r\u00f5 y\u00eau c\u1ea7u v\u00e0 k\u1ef9 n\u0103ng nh\u00e0 tuy\u1ec3n d\u1ee5ng \u0111ang t\u00ecm ki\u1ebfm.<\/p>\n\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Backdoor<\/strong> l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf truy c\u1eadp b\u00ed m\u1eadt v\u00e0o h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u1ea7n x\u00e1c th\u1ef1c. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t \u0111\u1ec3 duy tr\u00ec quy\u1ec1n truy c\u1eadp t\u1eeb xa, cho ph\u00e9p hacker \u0111i\u1ec1u khi\u1ec3n, thu th\u1eadp d\u1eef li\u1ec7u ho\u1eb7c c\u00e0i \u0111\u1eb7t m\u00e3 \u0111\u1ed9c kh\u00e1c m\u00e0 kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n.<\/li>\n\n\n\n<li><strong>Malware<\/strong> l\u00e0 kh\u00e1i ni\u1ec7m t\u1ed5ng qu\u00e1t ch\u1ec9 t\u1ea5t c\u1ea3 c\u00e1c ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i nh\u01b0 virus, s\u00e2u m\u00e1y t\u00ednh, trojan, spyware, ransomware\u2026 Trong \u0111\u00f3, backdoor l\u00e0 m\u1ed9t lo\u1ea1i malware chuy\u00ean bi\u1ec7t, t\u1eadp trung v\u00e0o kh\u1ea3 n\u0103ng t\u1ea1o \u0111\u01b0\u1eddng truy c\u1eadp \u1ea9n.<\/li>\n\n\n\n<li><strong>Trojan<\/strong> (Trojan Horse) l\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i ng\u1ee5y trang d\u01b0\u1edbi d\u1ea1ng h\u1ee3p ph\u00e1p nh\u1eb1m \u0111\u00e1nh l\u1eeba ng\u01b0\u1eddi d\u00f9ng c\u00e0i \u0111\u1eb7t. Sau khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, n\u00f3 c\u00f3 th\u1ec3 t\u1ef1 c\u00e0i backdoor ho\u1eb7c m\u1edf \u0111\u01b0\u1eddng cho hacker x\u00e2m nh\u1eadp h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n<li><strong>Spyware<\/strong> l\u00e0 ph\u1ea7n m\u1ec1m gi\u00e1n \u0111i\u1ec7p chuy\u00ean thu th\u1eadp d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng m\u1ed9t c\u00e1ch l\u00e9n l\u00fat, nh\u01b0 h\u00e0nh vi l\u01b0\u1edbt web, m\u1eadt kh\u1ea9u, ho\u1eb7c th\u00f4ng tin t\u00e0i ch\u00ednh. Spyware kh\u00f4ng nh\u1ea5t thi\u1ebft t\u1ea1o ra backdoor, nh\u01b0ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u ra ngo\u00e0i.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn bi\u1ebft s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn \u0111\u00fang gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt v\u00e0 n\u00e2ng cao c\u1ea3nh gi\u00e1c khi s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Backdoor<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Backdoor ho\u1ea1t \u0111\u1ed9ng theo nguy\u00ean t\u1eafc t\u1ea1o ra m\u1ed9t l\u1ed1i v\u00e0o b\u00ed m\u1eadt \u0111\u1ec3 truy c\u1eadp h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u1ea7n x\u00e1c th\u1ef1c h\u1ee3p l\u1ec7. Kh\u00e1c v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c t\u1ea5n c\u00f4ng \u1ed3n \u00e0o v\u00e0 d\u1ec5 b\u1ecb ph\u00e1t hi\u1ec7n, backdoor \u00e2m th\u1ea7m \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t, sau \u0111\u00f3 \u1ea9n m\u00ecnh trong h\u1ec7 th\u1ed1ng v\u00e0 ch\u1edd \u0111\u1ee3i k\u00edch ho\u1ea1t khi c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng th\u01b0\u1eddng, backdoor c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t theo m\u1ed9t trong c\u00e1c c\u00e1ch sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Th\u00f4ng qua ph\u1ea7n m\u1ec1m h\u1ee3p ph\u00e1p b\u1ecb ch\u1ec9nh s\u1eeda<\/strong>: tin t\u1eb7c nh\u00fang m\u00e3 backdoor v\u00e0o ph\u1ea7n m\u1ec1m, game, \u1ee9ng d\u1ee5ng crack \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng v\u00f4 t\u00ecnh c\u00e0i \u0111\u1eb7t.<\/li>\n\n\n\n<li><strong>Khai th\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt<\/strong>: t\u1eadn d\u1ee5ng l\u1ed7 h\u1ed5ng trong h\u1ec7 \u0111i\u1ec1u h\u00e0nh, tr\u00ecnh duy\u1ec7t ho\u1eb7c ph\u1ea7n m\u1ec1m \u0111\u1ec3 \u0111\u01b0a m\u00e3 \u0111\u1ed9c v\u00e0o h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n<li><strong>Qua c\u00e1c chi\u1ebfn d\u1ecbch phishing (l\u1eeba \u0111\u1ea3o)<\/strong>: ng\u01b0\u1eddi d\u00f9ng b\u1ecb l\u1eeba t\u1ea3i v\u1ec1 file \u0111\u00ednh k\u00e8m ho\u1eb7c \u0111\u01b0\u1eddng link \u0111\u1ed9c h\u1ea1i.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, backdoor s\u1ebd duy tr\u00ec m\u1ed9t k\u00eanh giao ti\u1ebfp b\u00ed m\u1eadt v\u1edbi hacker, cho ph\u00e9p h\u1ecd th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh vi nh\u01b0: theo d\u00f5i ho\u1ea1t \u0111\u1ed9ng h\u1ec7 th\u1ed1ng, \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa, t\u1ea3i l\u00ean ho\u1eb7c t\u1ea3i xu\u1ed1ng d\u1eef li\u1ec7u, th\u1eadm ch\u00ed m\u1edf th\u00eam c\u00e1c c\u1ed5ng t\u1ea5n c\u00f4ng kh\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00ednh v\u00ec c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng \u1ea9n v\u00e0 dai d\u1eb3ng, backdoor l\u00e0 m\u1ed1i nguy hi\u1ec3m kh\u00f3 l\u01b0\u1eddng v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n s\u1edbm tr\u01b0\u1edbc khi g\u00e2y ra h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i Backdoor ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Backdoor c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi nhi\u1ec1u h\u00ecnh th\u1ee9c kh\u00e1c nhau, t\u00f9y theo c\u00e1ch th\u1ee9c x\u00e2m nh\u1eadp v\u00e0 m\u1ee5c ti\u00eau t\u1ea5n c\u00f4ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng lo\u1ea1i backdoor ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Backdoor ph\u1ea7n m\u1ec1m (Software-based Backdoor)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t, \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o b\u00ean trong c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ho\u1eb7c \u1ee9ng d\u1ee5ng. Tin t\u1eb7c th\u01b0\u1eddng ng\u1ee5y trang m\u00e3 backdoor trong ph\u1ea7n m\u1ec1m crack, game, ho\u1eb7c c\u00f4ng c\u1ee5 mi\u1ec5n ph\u00ed \u0111\u1ec3 d\u1ee5 ng\u01b0\u1eddi d\u00f9ng t\u1ef1 c\u00e0i \u0111\u1eb7t. Sau khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, backdoor c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u00e2m th\u1ea7m trong n\u1ec1n v\u00e0 g\u1eedi d\u1eef li\u1ec7u ra b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Backdoor ph\u1ea7n c\u1ee9ng (Hardware Backdoor)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp v\u00e0o ph\u1ea7n c\u1ee9ng nh\u01b0 bo m\u1ea1ch ch\u1ee7, chip x\u1eed l\u00fd, ho\u1eb7c thi\u1ebft b\u1ecb m\u1ea1ng. Backdoor ph\u1ea7n c\u1ee9ng r\u1ea5t kh\u00f3 ph\u00e1t hi\u1ec7n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng quy m\u00f4 l\u1edbn ho\u1eb7c c\u00f3 y\u1ebfu t\u1ed1 gi\u00e1n \u0111i\u1ec7p c\u00f4ng ngh\u1ec7. M\u1ed9t khi b\u1ecb khai th\u00e1c, ch\u00fang cho ph\u00e9p k\u1ebb t\u1ea5n c\u00f4ng ki\u1ec3m so\u00e1t thi\u1ebft b\u1ecb \u1edf c\u1ea5p \u0111\u1ed9 r\u1ea5t s\u00e2u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Backdoor do h\u1ec7 \u0111i\u1ec1u h\u00e0nh t\u00edch h\u1ee3p s\u1eb5n (Built-in OS Backdoor)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 h\u1ec7 \u0111i\u1ec1u h\u00e0nh ho\u1eb7c firmware b\u1ecb ph\u00e1t hi\u1ec7n ch\u1ee9a backdoor do nh\u00e0 ph\u00e1t tri\u1ec3n v\u00f4 t\u00ecnh (ho\u1eb7c c\u1ed1 \u00fd) \u0111\u1ec3 l\u1ea1i. Nh\u1eefng l\u1ed7 h\u1ed5ng n\u00e0y c\u00f3 th\u1ec3 b\u1ecb khai th\u00e1c n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt b\u1ea3n v\u00e1 k\u1ecbp th\u1eddi. \u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao vi\u1ec7c c\u1eadp nh\u1eadt h\u1ec7 \u0111i\u1ec1u h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 \u0111i\u1ec1u r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00a0Backdoor t\u1eeb ph\u1ea7n m\u1ec1m crack ho\u1eb7c \u1ee9ng d\u1ee5ng b\u00ean th\u1ee9 ba<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1eddi d\u00f9ng t\u1ea3i ph\u1ea7n m\u1ec1m crack, c\u00f4ng c\u1ee5 k\u00edch ho\u1ea1t l\u1eadu th\u01b0\u1eddng kh\u00f4ng l\u01b0\u1eddng tr\u01b0\u1edbc \u0111\u01b0\u1ee3c nguy c\u01a1 ch\u1ee9a m\u00e3 backdoor b\u00ean trong. Nh\u1eefng backdoor n\u00e0y \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 chi\u1ebfm quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n m\u00e1y t\u00ednh ho\u1eb7c l\u1ea5y c\u1eafp d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m m\u00e0 kh\u00f4ng c\u1ea7n m\u1eadt kh\u1ea9u.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Xem th\u00eam: <a href=\"https:\/\/www.careerlink.vn\/viec-lam\/cntt-phan-mem\/19\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.careerlink.vn\/viec-lam\/cntt-phan-mem\/19\" rel=\"noreferrer noopener\">Vi\u1ec7c L\u00e0m IT Ph\u1ea7n M\u1ec1m<\/a> ta\u0323i Careerlink.vn<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft v\u00e0 r\u1ee7i ro khi b\u1ecb nhi\u1ec5m Backdoor<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc c\u00e1c m\u1ed1i \u0111e d\u1ecda an ninh m\u1ea1ng, vi\u1ec7c nh\u1eadn di\u1ec7n s\u1edbm c\u00e1c d\u1ea5u hi\u1ec7u nhi\u1ec5m backdoor l\u00e0 v\u00f4 c\u00f9ng c\u1ea7n thi\u1ebft. Ph\u1ea7n n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u nh\u1eefng bi\u1ec3u hi\u1ec7n b\u1ea5t th\u01b0\u1eddng c\u00f3 th\u1ec3 c\u1ea3nh b\u00e1o s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a backdoor v\u00e0 nh\u1eefng h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng n\u1ebfu kh\u00f4ng k\u1ecbp th\u1eddi x\u1eed l\u00fd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft thi\u1ebft b\u1ecb b\u1ecb c\u00e0i Backdoor<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m nguy hi\u1ec3m c\u1ee7a backdoor l\u00e0 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u00e2m th\u1ea7m, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng r\u1ea5t kh\u00f3 ph\u00e1t hi\u1ec7n. Tuy nhi\u00ean, n\u1ebfu ch\u00fa \u00fd k\u1ef9, v\u1eabn c\u00f3 th\u1ec3 nh\u1eadn ra m\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng ch\u1eadm b\u1ea5t th\u01b0\u1eddng<\/strong>: M\u00e1y t\u00ednh ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i \u0111\u1ed9t ng\u1ed9t ch\u1eadm h\u01a1n d\u00f9 kh\u00f4ng ch\u1ea1y \u1ee9ng d\u1ee5ng n\u1eb7ng, c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a ti\u1ebfn tr\u00ecnh l\u1ea1 \u0111ang ch\u1ea1y ng\u1ea7m.<\/li>\n\n\n\n<li><strong>L\u01b0u l\u01b0\u1ee3ng m\u1ea1ng b\u1ea5t th\u01b0\u1eddng<\/strong>: Thi\u1ebft b\u1ecb g\u1eedi\/nh\u1eadn d\u1eef li\u1ec7u ngay c\u1ea3 khi kh\u00f4ng truy c\u1eadp internet, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u00e0o ban \u0111\u00eam, l\u00e0 d\u1ea5u hi\u1ec7u r\u00f5 r\u00e0ng c\u1ee7a h\u00e0nh vi giao ti\u1ebfp v\u1edbi m\u00e1y ch\u1ee7 \u0111i\u1ec1u khi\u1ec3n.<\/li>\n\n\n\n<li><strong>Xu\u1ea5t hi\u1ec7n ti\u1ebfn tr\u00ecnh l\u1ea1 trong h\u1ec7 th\u1ed1ng<\/strong>: C\u00e1c ch\u01b0\u01a1ng tr\u00ecnh l\u1ea1 kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c, kh\u00f4ng hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng nh\u01b0ng ti\u00eau t\u1ed1n t\u00e0i nguy\u00ean \u0111\u00e1ng k\u1ec3 c\u00f3 th\u1ec3 l\u00e0 backdoor.<\/li>\n\n\n\n<li><strong>Ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a<\/strong>: N\u1ebfu ph\u1ea7n m\u1ec1m di\u1ec7t virus ho\u1eb7c firewall t\u1ef1 \u0111\u1ed9ng t\u1eaft m\u00e0 kh\u00f4ng r\u00f5 l\u00fd do, c\u00f3 th\u1ec3 h\u1ec7 th\u1ed1ng \u0111\u00e3 b\u1ecb can thi\u1ec7p.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">R\u1ee7i ro khi b\u1ecb nhi\u1ec5m Backdoor<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi backdoor \u0111\u00e3 x\u00e2m nh\u1eadp, h\u1eadu qu\u1ea3 c\u00f3 th\u1ec3 r\u1ea5t nghi\u00eam tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u1ea5t quy\u1ec1n ki\u1ec3m so\u00e1t h\u1ec7 th\u1ed1ng<\/strong>: Hacker c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb t\u1eeb xa, truy c\u1eadp d\u1eef li\u1ec7u ho\u1eb7c c\u00e0i th\u00eam ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i.<\/li>\n\n\n\n<li><strong>R\u00f2 r\u1ec9 d\u1eef li\u1ec7u c\u00e1 nh\u00e2n\/doanh nghi\u1ec7p<\/strong>: C\u00e1c t\u00e0i li\u1ec7u n\u1ed9i b\u1ed9, th\u00f4ng tin t\u00e0i kho\u1ea3n, m\u1eadt kh\u1ea9u c\u00f3 th\u1ec3 b\u1ecb \u0111\u00e1nh c\u1eafp v\u00e0 s\u1eed d\u1ee5ng tr\u00e1i ph\u00e9p.<\/li>\n\n\n\n<li><strong>Thi\u1ebft b\u1ecb b\u1ecb l\u1ee3i d\u1ee5ng \u0111\u1ec3 ph\u00e1t t\u00e1n m\u00e3 \u0111\u1ed9c<\/strong>: M\u00e1y t\u00ednh c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 b\u1ecb d\u00f9ng l\u00e0m tr\u1ea1m trung gian trong c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng quy m\u00f4 l\u1edbn nh\u01b0 DDoS ho\u1eb7c ph\u00e1t t\u00e1n ransomware.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch ph\u00f2ng ch\u1ed1ng v\u00e0 lo\u1ea1i b\u1ecf Backdoor hi\u1ec7u qu\u1ea3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee7 \u0111\u1ed9ng ph\u00f2ng ng\u1eeba l\u00e0 gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 tr\u00e1nh b\u1ecb x\u00e2m nh\u1eadp tr\u00e1i ph\u00e9p qua backdoor. Trong ph\u1ea7n n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u c\u00e1c ph\u01b0\u01a1ng ph\u00e1p k\u1ef9 thu\u1eadt v\u00e0 qu\u1ea3n tr\u1ecb c\u1ea7n thi\u1ebft nh\u1eb1m ng\u0103n ch\u1eb7n, ph\u00e1t hi\u1ec7n v\u00e0 lo\u1ea1i b\u1ecf backdoor m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n v\u00e0 b\u1ec1n v\u1eefng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c ph\u00e1t hi\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n backdoor x\u00e2m nh\u1eadp h\u1ec7 th\u1ed1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh th\u01b0\u1eddng xuy\u00ean<\/strong>: Gi\u00fap v\u00e1 c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt m\u00e0 tin t\u1eb7c c\u00f3 th\u1ec3 l\u1ee3i d\u1ee5ng \u0111\u1ec3 c\u00e0i backdoor.<\/li>\n\n\n\n<li><strong>S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m di\u1ec7t virus uy t\u00edn<\/strong>: \u01afu ti\u00ean c\u00e1c ph\u1ea7n m\u1ec1m c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n backdoor v\u00e0 gi\u00e1m s\u00e1t h\u00e0nh vi b\u1ea5t th\u01b0\u1eddng.<\/li>\n\n\n\n<li><strong>Kh\u00f4ng t\u1ea3i v\u00e0 c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m crack, kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c<\/strong>: \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng con \u0111\u01b0\u1eddng ph\u1ed5 bi\u1ebfn \u0111\u1ec3 ph\u00e1t t\u00e1n backdoor.<\/li>\n\n\n\n<li><strong>Qu\u00e9t h\u1ec7 th\u1ed1ng \u0111\u1ecbnh k\u1ef3 b\u1eb1ng c\u00f4ng c\u1ee5 b\u1ea3o m\u1eadt chuy\u00ean s\u00e2u<\/strong>: Gi\u00fap ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c ti\u1ebfn tr\u00ecnh l\u1ea1 v\u00e0 x\u00f3a b\u1ecf m\u00e3 \u0111\u1ed9c n\u1ebfu c\u00f3.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p qu\u1ea3n tr\u1ecb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00ean c\u1ea1nh y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt, vi\u1ec7c x\u00e2y d\u1ef1ng ch\u00ednh s\u00e1ch qu\u1ea3n tr\u1ecb b\u1ea3o m\u1eadt r\u00f5 r\u00e0ng c\u0169ng r\u1ea5t quan tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ph\u00e2n quy\u1ec1n ng\u01b0\u1eddi d\u00f9ng h\u1ee3p l\u00fd<\/strong>: Tr\u00e1nh t\u00ecnh tr\u1ea1ng t\u1ea5t c\u1ea3 t\u00e0i kho\u1ea3n \u0111\u1ec1u c\u00f3 quy\u1ec1n qu\u1ea3n tr\u1ecb, l\u00e0m t\u0103ng nguy c\u01a1 b\u1ecb ki\u1ec3m so\u00e1t tr\u00e1i ph\u00e9p.<\/li>\n\n\n\n<li><strong>Gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng v\u00e0 nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng (log)<\/strong>: Gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c h\u00e0nh vi truy c\u1eadp b\u1ea5t th\u01b0\u1eddng ho\u1eb7c g\u1eedi d\u1eef li\u1ec7u ra ngo\u00e0i.<\/li>\n\n\n\n<li><strong>\u0110\u00e0o t\u1ea1o nh\u1eadn th\u1ee9c b\u1ea3o m\u1eadt<\/strong>: N\u00e2ng cao hi\u1ec3u bi\u1ebft c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u1ec1 r\u1ee7i ro an ninh m\u1ea1ng v\u00e0 k\u1ef9 n\u0103ng ph\u00f2ng tr\u00e1nh backdoor.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft h\u1ee3p \u0111\u1ed3ng b\u1ed9 gi\u1eefa c\u00f4ng ngh\u1ec7 v\u00e0 qu\u1ea3n l\u00fd s\u1ebd t\u1ea1o n\u00ean m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00f2ng th\u1ee7 m\u1ea1nh m\u1ebd tr\u01b0\u1edbc c\u00e1c m\u1ed1i \u0111e d\u1ecda t\u1eeb backdoor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i, Backdoor l\u00e0 m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt nguy hi\u1ec3m nh\u01b0ng th\u01b0\u1eddng b\u1ecb \u0111\u00e1nh gi\u00e1 th\u1ea5p do ho\u1ea1t \u0111\u1ed9ng \u00e2m th\u1ea7m v\u00e0 kh\u00f3 b\u1ecb ph\u00e1t hi\u1ec7n. Hi\u1ec3u r\u00f5 <strong>backdoor l\u00e0 g\u00ec<\/strong>, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng v\u00e0 d\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft s\u1ebd gi\u00fap ng\u01b0\u1eddi d\u00f9ng ch\u1ee7 \u0111\u1ed9ng ph\u00f2ng tr\u00e1nh t\u1eeb s\u1edbm. Vi\u1ec7c k\u1ebft h\u1ee3p gi\u1eefa gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt v\u00e0 qu\u1ea3n tr\u1ecb an to\u00e0n th\u00f4ng tin l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u00e2m th\u1ea7m. B\u1ea3o m\u1eadt kh\u00f4ng ch\u1ec9 l\u00e0 nhi\u1ec7m v\u1ee5 c\u1ee7a ph\u1ea7n m\u1ec1m m\u00e0 c\u00f2n l\u00e0 tr\u00e1ch nhi\u1ec7m c\u1ee7a m\u1ed7i c\u00e1 nh\u00e2n trong m\u00f4i tr\u01b0\u1eddng s\u1ed1.<\/p>\n\n\n\n<p class=\"has-text-align-right wp-block-paragraph\"><strong>Tr\u00ed Nh\u00e2n<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ea3o m\u1eadt th\u00f4ng tin \u0111\u00e3 tr\u1edf th\u00e0nh \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u \u0111\u1ed1i v\u1edbi c\u1ea3 c\u00e1 nh\u00e2n l\u1eabn t\u1ed5 ch\u1ee9c. Khi c\u00e1c m\u1ed1i \u0111e d\u1ecda ng\u00e0y &#8230;<\/p>\n","protected":false},"author":58,"featured_media":9646,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[64],"class_list":["post-9645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tu-van-nghe-nghiep","tag-it"],"_links":{"self":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts\/9645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/users\/58"}],"replies":[{"embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/comments?post=9645"}],"version-history":[{"count":4,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts\/9645\/revisions"}],"predecessor-version":[{"id":27422,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/posts\/9645\/revisions\/27422"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/media\/9646"}],"wp:attachment":[{"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/media?parent=9645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/categories?post=9645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.careerlink.vn\/cam-nang-viec-lam\/wp-json\/wp\/v2\/tags?post=9645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}