{"id":477460,"date":"2023-08-09T09:15:22","date_gmt":"2023-08-09T09:15:22","guid":{"rendered":""},"modified":"2023-09-05T11:14:47","modified_gmt":"2023-09-05T11:14:47","slug":"homograph-attack","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/homograph-attack\/","title":{"rendered":"T\u1ea5n c\u00f4ng \u0111\u1ed3ng \u00e2m"},"content":{"rendered":"<p>Cu\u1ed9c t\u1ea5n c\u00f4ng Homograph, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 cu\u1ed9c t\u1ea5n c\u00f4ng Homoglyph, l\u00e0 m\u1ed9t lo\u1ea1i t\u1ea5n c\u00f4ng m\u1ea1ng l\u1eeba \u0111\u1ea3o trong \u0111\u00f3 c\u00e1c t\u00e1c nh\u00e2n \u0111\u1ed9c h\u1ea1i khai th\u00e1c s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1ec1 h\u00ecnh \u1ea3nh gi\u1eefa c\u00e1c k\u00fd t\u1ef1 t\u1eeb c\u00e1c ch\u1eef vi\u1ebft ho\u1eb7c b\u1ea3ng ch\u1eef c\u00e1i kh\u00e1c nhau \u0111\u1ec3 \u0111\u00e1nh l\u1eeba ng\u01b0\u1eddi d\u00f9ng. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c k\u00fd t\u1ef1 tr\u00f4ng g\u1ea7n gi\u1ed1ng v\u1edbi k\u00fd t\u1ef1 h\u1ee3p ph\u00e1p, k\u1ebb t\u1ea5n c\u00f4ng \u0111\u00e1nh l\u1eeba ng\u01b0\u1eddi d\u00f9ng tin r\u1eb1ng h\u1ecd \u0111ang t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c trang web, email ho\u1eb7c tin nh\u1eafn \u0111\u00e1ng tin c\u1eady. Chi\u1ebfn thu\u1eadt qu\u1ef7 quy\u1ec7t n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn nhi\u1ec1u t\u1ed9i ph\u1ea1m m\u1ea1ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 l\u1eeba \u0111\u1ea3o, \u0111\u00e1nh c\u1eafp danh t\u00ednh v\u00e0 ph\u00e1t t\u00e1n ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng Homograph v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n<p>Kh\u00e1i ni\u1ec7m t\u1ea5n c\u00f4ng Homograph l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u00e0o n\u0103m 2001 b\u1edfi Evgeniy Gabrilovich v\u00e0 Alex Gontmakher trong b\u00e0i nghi\u00ean c\u1ee9u c\u1ee7a h\u1ecd c\u00f3 t\u1ef1a \u0111\u1ec1 \u201cCu\u1ed9c t\u1ea5n c\u00f4ng Homograph\u201d. H\u1ecd \u0111\u00e3 ch\u1ee9ng minh c\u00e1ch nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 thao t\u00fang c\u00e1c t\u00ean mi\u1ec1n qu\u1ed1c t\u1ebf h\u00f3a (IDN) \u0111\u1ec3 t\u1ea1o ra c\u00e1c mi\u1ec1n tr\u00f4ng gi\u1ed1ng c\u00e1c trang web n\u1ed5i ti\u1ebfng nh\u01b0ng c\u00f3 c\u00e1ch bi\u1ec3u di\u1ec5n Unicode c\u01a1 b\u1ea3n kh\u00e1c nhau.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 cu\u1ed9c t\u1ea5n c\u00f4ng Homograph<\/h2>\n<p>Cu\u1ed9c t\u1ea5n c\u00f4ng Homograph ch\u1ee7 y\u1ebfu khai th\u00e1c b\u1ed9 k\u00fd t\u1ef1 kh\u1ed5ng l\u1ed3 c\u00f3 s\u1eb5n trong c\u00e1c h\u1ec7 th\u1ed1ng ch\u1eef vi\u1ebft kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 Unicode. Unicode l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a k\u00fd t\u1ef1 ph\u1ed5 qu\u00e1t cho ph\u00e9p bi\u1ec3u di\u1ec5n c\u00e1c k\u00fd t\u1ef1 t\u1eeb nhi\u1ec1u ng\u00f4n ng\u1eef v\u00e0 ch\u1eef vi\u1ebft kh\u00e1c nhau tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. Trong Unicode, m\u1ed9t s\u1ed1 k\u00fd t\u1ef1 c\u00f3 h\u00ecnh \u1ea3nh t\u01b0\u01a1ng \u0111\u1ed3ng m\u1eb7c d\u00f9 l\u00e0 c\u00e1c th\u1ef1c th\u1ec3 ri\u00eang bi\u1ec7t.<\/p>\n<p>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng Homograph bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<ol>\n<li>\n<p><strong>B\u1ea3n \u0111\u1ed3 nh\u00e2n v\u1eadt<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng x\u00e1c \u0111\u1ecbnh c\u00e1c k\u00fd t\u1ef1 t\u1eeb c\u00e1c t\u1eadp l\u1ec7nh kh\u00e1c nhau gi\u1ed1ng v\u1edbi c\u00e1c k\u00fd t\u1ef1 trong t\u1eadp l\u1ec7nh m\u1ee5c ti\u00eau. V\u00ed d\u1ee5: ch\u1eef \u201ca\u201d trong ti\u1ebfng Latin (U+0061) v\u00e0 ch\u1eef \u201c\u0430\u201d trong ch\u1eef Cyrillic (U+0430) tr\u00f4ng g\u1ea7n gi\u1ed1ng nhau.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng \u0111\u0103ng k\u00fd m\u1ed9t t\u00ean mi\u1ec1n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c k\u00fd t\u1ef1 l\u1eeba \u0111\u1ea3o n\u00e0y, t\u1ea1o ra m\u1ed9t mi\u1ec1n tr\u00f4ng gi\u1ed1ng h\u1ec7t v\u1edbi t\u00ean mi\u1ec1n h\u1ee3p ph\u00e1p. V\u00ed d\u1ee5: k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd \u201cexample.com\u201d thay v\u00ec \u201cexample.com\u201d.<\/p>\n<\/li>\n<li>\n<p><strong>Truy\u1ec1n th\u00f4ng l\u1eeba \u0111\u1ea3o<\/strong>: V\u1edbi mi\u1ec1n l\u1eeba \u0111\u1ea3o \u0111\u00e3 c\u00f3, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 t\u1ea1o email l\u1eeba \u0111\u1ea3o, t\u1ea1o trang web l\u1eeba \u0111\u1ea3o ho\u1eb7c th\u1eadm ch\u00ed g\u1eedi tin nh\u1eafn \u0111\u1ed9c h\u1ea1i c\u00f3 v\u1ebb nh\u01b0 b\u1eaft ngu\u1ed3n t\u1eeb mi\u1ec1n h\u1ee3p ph\u00e1p.<\/p>\n<\/li>\n<\/ol>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a cu\u1ed9c t\u1ea5n c\u00f4ng Homograph<\/h2>\n<p>Cu\u1ed9c t\u1ea5n c\u00f4ng Homograph s\u1edf h\u1eefu m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 \u0111\u1eb7c bi\u1ec7t nguy hi\u1ec3m:<\/p>\n<ol>\n<li>\n<p><strong>t\u00e0ng h\u00ecnh<\/strong>: Cu\u1ed9c t\u1ea5n c\u00f4ng nh\u1eafm v\u00e0o nh\u1eadn th\u1ee9c th\u1ecb gi\u00e1c c\u1ee7a con ng\u01b0\u1eddi, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng kh\u00f3 nh\u1eadn ra s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c nh\u00e2n v\u1eadt th\u1eadt v\u00e0 nh\u00e2n v\u1eadt l\u1eeba \u0111\u1ea3o.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110a n\u1ec1n t\u1ea3ng<\/strong>: C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ed3ng \u00e2m kh\u00f4ng gi\u1edbi h\u1ea1n \u1edf c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh ho\u1eb7c tr\u00ecnh duy\u1ec7t web c\u1ee5 th\u1ec3, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng kh\u00e1c nhau.<\/p>\n<\/li>\n<li>\n<p><strong>Ng\u00f4n ng\u1eef \u0111\u1ed9c l\u1eadp<\/strong>: V\u00ec cu\u1ed9c t\u1ea5n c\u00f4ng khai th\u00e1c Unicode, n\u00ean n\u00f3 c\u00f3 th\u1ec3 nh\u1eafm m\u1ee5c ti\u00eau v\u00e0o ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea5t k\u1ef3 ng\u00f4n ng\u1eef n\u00e0o s\u1eed d\u1ee5ng ch\u1eef vi\u1ebft kh\u00f4ng ph\u1ea3i ti\u1ebfng Latinh.<\/p>\n<\/li>\n<li>\n<p><strong>T\u00ednh linh ho\u1ea1t<\/strong>: Nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph cho nhi\u1ec1u t\u1ed9i ph\u1ea1m m\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m l\u1eeba \u0111\u1ea3o, ph\u00e2n ph\u1ed1i ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i v\u00e0 k\u1ef9 thu\u1eadt x\u00e3 h\u1ed9i.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i t\u1ea5n c\u00f4ng Homograph<\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ed3ng \u00e2m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean s\u1ef1 gi\u1ed1ng nhau v\u1ec1 h\u00ecnh \u1ea3nh m\u00e0 k\u1ebb t\u1ea5n c\u00f4ng khai th\u00e1c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i ph\u1ed5 bi\u1ebfn:<\/p>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>V\u00ed d\u1ee5<\/th>\n<th>Gi\u1ea3i tr\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u0110\u1ed3ng \u00e2m IDN<\/strong><\/td>\n<td>\u0430m\u0430zon.com (\u0430 so v\u1edbi a)<\/td>\n<td>Khai th\u00e1c c\u00e1c k\u00fd t\u1ef1 t\u1eeb c\u00e1c t\u1eadp l\u1ec7nh kh\u00e1c nhau.<\/td>\n<\/tr>\n<tr>\n<td><strong>Ch\u1eef vi\u1ebft \u0111\u1ed3ng \u00e2m<\/strong><\/td>\n<td> .com ( so v\u1edbi B)<\/td>\n<td>S\u1eed d\u1ee5ng c\u00e1c k\u00fd t\u1ef1 t\u1eeb c\u00e1c t\u1eadp l\u1ec7nh Unicode kh\u00e1c nhau.<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110\u1ed3ng \u00e2m Punycode<\/strong><\/td>\n<td>xn--80ak6aa92e.com<\/td>\n<td>Thao t\u00e1c bi\u1ec3u di\u1ec5n Punycode c\u1ee7a t\u00ean mi\u1ec1n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng t\u1ea5n c\u00f4ng Homograph, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n<p>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u0111\u1ed3ng \u00e2m \u0111\u1eb7t ra nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u00e1ng k\u1ec3 cho ng\u01b0\u1eddi d\u00f9ng internet, doanh nghi\u1ec7p v\u00e0 chuy\u00ean gia an ninh m\u1ea1ng. M\u1ed9t s\u1ed1 c\u00e1ch k\u1ebb t\u1ea5n c\u00f4ng s\u1eed d\u1ee5ng c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>L\u1eeba \u0111\u1ea3o<\/strong>: K\u1ebb t\u1ea5n c\u00f4ng b\u1eaft ch\u01b0\u1edbc c\u00e1c trang web h\u1ee3p ph\u00e1p \u0111\u1ec3 \u0111\u00e1nh c\u1eafp th\u00f4ng tin nh\u1ea1y c\u1ea3m nh\u01b0 th\u00f4ng tin \u0111\u0103ng nh\u1eadp, chi ti\u1ebft th\u1ebb t\u00edn d\u1ee5ng, v.v.<\/p>\n<\/li>\n<li>\n<p><strong>Ph\u00e2n ph\u1ed1i ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i<\/strong>: C\u00e1c tin nh\u1eafn ho\u1eb7c trang web l\u1eeba \u0111\u1ea3o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t t\u00e1n ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i cho nh\u1eefng ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng nghi ng\u1edd.<\/p>\n<\/li>\n<li>\n<p><strong>K\u1ef9 thu\u1eadt x\u00e3 h\u1ed9i<\/strong>: Nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng g\u1eedi email ho\u1eb7c tin nh\u1eafn c\u00f3 v\u1ebb nh\u01b0 \u0111\u1ebfn t\u1eeb c\u00e1c ngu\u1ed3n \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 thao t\u00fang ng\u01b0\u1eddi d\u00f9ng th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 h\u00e0nh \u0111\u1ed9ng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<\/li>\n<\/ol>\n<h3>V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li>\n<p><strong>Thi\u1ebfu nh\u1eadn th\u1ee9c v\u1ec1 Unicode<\/strong>: Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng bi\u1ebft \u0111\u1ebfn s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a c\u00e1c k\u00fd t\u1ef1 tr\u00f4ng gi\u1ed1ng nhau v\u1ec1 m\u1eb7t h\u00ecnh \u1ea3nh, khi\u1ebfn h\u1ecd d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng b\u1edfi Homograph.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1ed7 h\u1ed5ng tr\u00ecnh duy\u1ec7t v\u00e0 ph\u1ea7n m\u1ec1m<\/strong>: M\u1ed9t s\u1ed1 tr\u00ecnh duy\u1ec7t v\u00e0 \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 kh\u00f4ng hi\u1ec3n th\u1ecb ch\u00ednh x\u00e1c c\u00e1c k\u00fd t\u1ef1 Unicode, d\u1eabn \u0111\u1ebfn s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c n\u1ec1n t\u1ea3ng kh\u00e1c nhau.<\/p>\n<\/li>\n<\/ul>\n<p>\u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y, c\u00e1c gi\u1ea3i ph\u00e1p ti\u1ec1m n\u0103ng bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>Gi\u00e1o d\u1ee5c Unicode<\/strong>: N\u00e2ng cao nh\u1eadn th\u1ee9c v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 k\u00fd t\u1ef1 Unicode c\u00f3 th\u1ec3 gi\u00fap ng\u01b0\u1eddi d\u00f9ng x\u00e1c \u0111\u1ecbnh c\u00e1c mi\u1ec1n \u0111\u00e1ng ng\u1edd.<\/p>\n<\/li>\n<li>\n<p><strong>C\u1ea3i ti\u1ebfn tr\u00ecnh duy\u1ec7t v\u00e0 ph\u1ea7n m\u1ec1m<\/strong>: Nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 c\u1ea3i ti\u1ebfn ph\u1ea7n m\u1ec1m \u0111\u1ec3 hi\u1ec3n th\u1ecb r\u00f5 r\u00e0ng c\u00e1c k\u00fd t\u1ef1 t\u01b0\u01a1ng t\u1ef1 v\u1ec1 m\u1eb7t h\u00ecnh \u1ea3nh ho\u1eb7c c\u1ea3nh b\u00e1o ng\u01b0\u1eddi d\u00f9ng v\u1ec1 c\u00e1c mi\u1ec1n l\u1eeba \u0111\u1ea3o.<\/p>\n<\/li>\n<\/ul>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh gi\u1eefa t\u1ea5n c\u00f4ng Homograph v\u00e0 c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1:<\/p>\n<table>\n<thead>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>Gi\u1ea3i tr\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>T\u1ea5n c\u00f4ng \u0111\u1ed3ng \u00e2m<\/strong><\/td>\n<td>S\u1eed d\u1ee5ng l\u1eeba \u0111\u1ea3o c\u00e1c k\u00fd t\u1ef1 c\u00f3 h\u00ecnh \u1ea3nh t\u01b0\u01a1ng t\u1ef1.<\/td>\n<\/tr>\n<tr>\n<td><strong>L\u1eeba \u0111\u1ea3o<\/strong><\/td>\n<td>C\u1ed1 g\u1eafng l\u1eeba ng\u01b0\u1eddi d\u00f9ng ti\u1ebft l\u1ed9 th\u00f4ng tin ho\u1eb7c th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n l\u1eeba \u0111\u1ea3o.<\/td>\n<\/tr>\n<tr>\n<td><strong>gi\u1ea3 m\u1ea1o<\/strong><\/td>\n<td>M\u1ea1o danh m\u1ed9t t\u1ed5 ch\u1ee9c \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1ee3i \u00edch ho\u1eb7c l\u1eeba d\u1ed1i ng\u01b0\u1eddi d\u00f9ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn t\u1ea5n c\u00f4ng Homograph<\/h2>\n<p>Khi c\u00f4ng ngh\u1ec7 ti\u1ebfn b\u1ed9, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph c\u00f3 th\u1ec3 tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p h\u01a1n v\u00e0 kh\u00f3 ph\u00e1t hi\u1ec7n h\u01a1n. M\u1ed9t s\u1ed1 quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>Ph\u00e1t hi\u1ec7n h\u00ecnh \u1ea3nh n\u00e2ng cao<\/strong>: C\u00e1c thu\u1eadt to\u00e1n AI v\u00e0 h\u1ecdc m\u00e1y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 nh\u1eadn ra c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<\/li>\n<li>\n<p><strong>C\u1ea3i ti\u1ebfn b\u1ea3o m\u1eadt DNS<\/strong>: Nh\u1eefng c\u1ea3i ti\u1ebfn v\u1ec1 b\u1ea3o m\u1eadt DNS c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ch\u1eb7n vi\u1ec7c \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n l\u1eeba \u0111\u1ea3o.<\/p>\n<\/li>\n<li>\n<p><strong>Quy t\u1eafc \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n ch\u1eb7t ch\u1ebd h\u01a1n<\/strong>: C\u01a1 quan \u0111\u0103ng k\u00fd c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00e1c quy t\u1eafc ch\u1eb7t ch\u1ebd h\u01a1n \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c \u0111\u0103ng k\u00fd c\u00e1c mi\u1ec1n l\u1eeba \u0111\u1ea3o.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1ch m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft v\u1edbi cu\u1ed9c t\u1ea5n c\u00f4ng Homograph<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy v\u1eeba c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 th\u1ef1c hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph v\u1eeba cung c\u1ea5p m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i ch\u00fang:<\/p>\n<ul>\n<li>\n<p><strong>\u1ea8n danh cho k\u1ebb t\u1ea5n c\u00f4ng<\/strong>: Nh\u1eefng k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 \u1ea9n \u0111\u1ecba ch\u1ec9 IP th\u1ef1c c\u1ee7a ch\u00fang trong khi th\u1ef1c hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph, khi\u1ebfn vi\u1ec7c theo d\u00f5i ch\u00fang tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1ecdc v\u00e0 ki\u1ec3m tra<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph tr\u01b0\u1edbc khi ch\u00fang \u0111\u1ebfn tay ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n<\/ul>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Homograph v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t v\u1ec1 an ninh m\u1ea1ng, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ol>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/IDN_homograph_attack\" target=\"_new\" rel=\"noopener nofollow\">T\u1ea5n c\u00f4ng \u0111\u1ed3ng \u00e2m - Wikipedia<\/a><\/li>\n<li><a href=\"https:\/\/home.unicode.org\/\" target=\"_new\" rel=\"noopener nofollow\">Hi\u1ec7p h\u1ed9i Unicode<\/a><\/li>\n<li><a href=\"https:\/\/www.cisa.gov\/cybersecurity\" target=\"_new\" rel=\"noopener nofollow\">C\u01a1 quan An ninh m\u1ea1ng v\u00e0 C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng (CISA)<\/a><\/li>\n<\/ol>","protected":false},"featured_media":477461,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477460","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Homograph Attack: Deceptive Characters Unveiled<\/mark>","faq_items":[{"question":"What is a Homograph attack?","answer":"<p>A Homograph attack, also known as a Homoglyph attack, is a deceptive cyber attack where malicious actors use visually similar characters from different scripts or alphabets to deceive users. They create fraudulent domains and messages that appear identical to legitimate ones, leading to phishing, identity theft, and malware distribution.<\/p>"},{"question":"How did the Homograph attack originate?","answer":"<p>The concept of the Homograph attack was first introduced in 2001 by Evgeniy Gabrilovich and Alex Gontmakher in their research paper titled \"The Homograph Attack.\" They demonstrated how attackers could exploit internationalized domain names (IDNs) using visually similar characters.<\/p>"},{"question":"How does the Homograph attack work?","answer":"<p>The attack involves character mapping, where attackers identify similar-looking characters from different scripts. They then register deceptive domains and use them to send fraudulent emails or set up fake websites that trick users into believing they are legitimate.<\/p>"},{"question":"What are the key features of a Homograph attack?","answer":"<p>The Homograph attack is stealthy, cross-platform, language-independent, and versatile. It preys on human visual perception, affects users on various platforms, can target any language, and is used for phishing, malware distribution, and social engineering.<\/p>"},{"question":"What are the types of Homograph attacks?","answer":"<p>Homograph attacks can be categorized into IDN Homograph, Script Homograph, and Punycode Homograph attacks. Each type exploits different visual similarities between characters.<\/p>"},{"question":"How do attackers use Homograph attacks?","answer":"<p>Attackers use Homograph attacks for phishing, stealing sensitive information, distributing malware, and engaging in social engineering tactics.<\/p>"},{"question":"What are the problems and solutions related to Homograph attacks?","answer":"<p>Users' lack of Unicode awareness and software vulnerabilities contribute to the success of Homograph attacks. Solutions involve educating users about Unicode characters and enhancing software to detect and warn about deceptive domains.<\/p>"},{"question":"How does the future look for Homograph attacks?","answer":"<p>As technology advances, Homograph attacks may become more sophisticated. Future perspectives include AI-based visual detection, improved DNS security, and stricter domain registration rules.<\/p>"},{"question":"How can proxy servers help with Homograph attacks?","answer":"<p>Proxy servers can both aid attackers in executing Homograph attacks by providing anonymity, and protect users by filtering and blocking malicious content before it reaches them.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477460\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/477461"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=477460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}