{"id":1564,"date":"2023-03-12T21:23:10","date_gmt":"2023-03-12T21:23:10","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=1564"},"modified":"2023-03-12T21:23:10","modified_gmt":"2023-03-12T21:23:10","slug":"phat-trien-moi-nhat-ve-phat-hien-va-chong-spam-xa-hoi","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/vi\/thu-rac\/phat-trien-moi-nhat-ve-phat-hien-va-chong-spam-xa-hoi\/","title":{"rendered":"Nh\u1eefng ph\u00e1t tri\u1ec3n g\u1ea7n \u0111\u00e2y trong vi\u1ec7c ph\u00e1t hi\u1ec7n v\u00e0 ch\u1ed1ng l\u1ea1i th\u01b0 r\u00e1c x\u00e3 h\u1ed9i"},"content":{"rendered":"<p>Th\u01b0 r\u00e1c l\u00e0 nh\u1eefng tin nh\u1eafn kh\u00f4ng mong mu\u1ed1n ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c g\u1eedi ho\u1eb7c nh\u1eadn qua ph\u01b0\u01a1ng ti\u1ec7n \u0111i\u1ec7n t\u1eed qua email, tin nh\u1eafn t\u1ee9c th\u1eddi, blog, nh\u00f3m tin t\u1ee9c, ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i, t\u00ecm ki\u1ebfm tr\u00ean web v\u00e0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, k\u00e8m theo ti\u1ec1n ph\u1ea1t qu\u1ea3ng c\u00e1o, L\u1eeba \u0111\u1ea3o, Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, v.v. Nh\u01b0 \u0111\u00e3 n\u00eau r\u00f5 trong \u0111\u1ecbnh ngh\u0129a, Th\u01b0 r\u00e1c nh\u1eb1m m\u1ee5c \u0111\u00edch x\u1ea5u v\u00e0 th\u01b0\u1eddng l\u00e0 ngu\u1ed3n thu nh\u1eadp kh\u1ea3 thi nh\u01b0ng gian l\u1eadn c\u1ee7a m\u1ed9t s\u1ed1 c\u00e1 nh\u00e2n ho\u1eb7c t\u1ed5 ch\u1ee9c. K\u1ebb t\u1ea5n c\u00f4ng m\u1ea1ng li\u00ean quan \u0111\u1ebfn vi\u1ec7c g\u1eedi nh\u1eefng tin nh\u1eafn r\u00e1c nh\u01b0 v\u1eady th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &quot;k\u1ebb g\u1eedi th\u01b0 r\u00e1c&quot;. M\u1eb7c d\u00f9 ban \u0111\u1ea7u ch\u1ec9 nh\u1eafm m\u1ee5c ti\u00eau v\u00e0 gi\u1edbi h\u1ea1n trong email, th\u01b0 r\u00e1c \u0111\u00e3 x\u00e2m chi\u1ebfm t\u1ea5t c\u1ea3 c\u00e1c n\u1ec1n t\u1ea3ng \u0111i\u1ec7n t\u1eed tr\u00ean m\u1ecdi ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"what-kinds-of-spam-exist-today\"><strong>Hi\u1ec7n nay c\u00f3 nh\u1eefng lo\u1ea1i th\u01b0 r\u00e1c n\u00e0o?<\/strong><\/h2>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Th\u01b0 r\u00e1c<\/strong>: c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u01b0 r\u00e1c, g\u1eedi c\u00e1c tin nh\u1eafn kh\u00f4ng mong mu\u1ed1n, th\u01b0\u1eddng ch\u1ee9a n\u1ed9i dung th\u01b0\u01a1ng m\u1ea1i, v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn \u0111\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi nh\u1eadn kh\u00f4ng ph\u00e2n bi\u1ec7t.<\/li>\n\n\n\n<li><strong>Th\u01b0 r\u00e1c trong tin nh\u1eafn t\u1ee9c th\u1eddi s\u1eed d\u1ee5ng tr\u00ecnh nh\u1eafn tin t\u1ee9c th\u1eddi (IM):<\/strong> M\u1eb7c d\u00f9 tinh vi h\u01a1n so v\u1edbi email, nh\u01b0ng n\u00f3 c\u00f3 xu h\u01b0\u1edbng l\u00e0m phi\u1ec1n ng\u01b0\u1eddi d\u00f9ng c\u00e1c \u1ee9ng d\u1ee5ng nh\u1eafn tin t\u1ee9c th\u1eddi nh\u01b0 Skype\u00a9, Yahoo!\u00ae v\u00e0 Messenger b\u1eb1ng c\u00e1c tin nh\u1eafn kh\u00f4ng mong mu\u1ed1n t\u1eeb c\u00e1c nh\u00e0 qu\u1ea3ng c\u00e1o, v.v.<\/li>\n\n\n\n<li><strong>Th\u01b0 r\u00e1c tr\u00ean c\u00e1c nh\u00f3m tin t\u1ee9c v\u00e0 di\u1ec5n \u0111\u00e0n<\/strong>: c\u00e1c b\u00e0i \u0111\u0103ng l\u1eb7p \u0111i l\u1eb7p l\u1ea1i tr\u00ean c\u00e1c nh\u00f3m tin t\u1ee9c Usenet v\u00e0 c\u00e1c di\u1ec5n \u0111\u00e0n Internet kh\u00f4ng li\u00ean quan.<\/li>\n\n\n\n<li><strong>Th\u01b0 r\u00e1c \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/strong>: H\u00ecnh th\u1ee9c th\u01b0 r\u00e1c n\u00e0y s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 tin nh\u1eafn ng\u1eafn (SMS) l\u00e0m ph\u01b0\u01a1ng th\u1ee9c ho\u1ea1t \u0111\u1ed9ng. \u0110\u00f4i khi kh\u00e1ch h\u00e0ng b\u1ecb t\u00ednh ph\u00ed cho c\u00e1c d\u1ecbch v\u1ee5 cao c\u1ea5p b\u1eb1ng c\u00e1ch b\u1ecb l\u1eeba v\u00e0o m\u1ed9t s\u1ed1 \u0111\u0103ng k\u00fd gi\u1ea3 m\u1ea1o v\u00e0 l\u1eeba \u0111\u1ea3o.<\/li>\n\n\n\n<li><strong>G\u1eedi th\u01b0 r\u00e1c<\/strong>: l\u00e0 th\u01b0 r\u00e1c c\u1ee7a c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm ho\u1eb7c h\u00e0nh vi thao t\u00fang th\u1ee9 h\u1ea1ng v\u00e0 thu\u1eadt to\u00e1n li\u00ean quan c\u1ee7a c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm \u0111\u1ec3 qu\u1ea3ng b\u00e1 m\u1ed9t trang web ho\u1eb7c trang web c\u1ee5 th\u1ec3.<\/li>\n\n\n\n<li><strong>Splog v\u00e0 Wiki<\/strong>: Spam tr\u00ean Blog, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Splog, \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c b\u00ecnh lu\u1eadn kh\u00f4ng li\u00ean quan \u0111\u1ebfn ch\u1ee7 \u0111\u1ec1 th\u1ea3o lu\u1eadn. Nh\u1eefng b\u00ecnh lu\u1eadn n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u00fang v\u1edbi c\u00e1c li\u00ean k\u1ebft URL \u0111\u1ebfn m\u1ed9t s\u1ed1 trang web th\u01b0\u01a1ng m\u1ea1i. M\u1ed9t s\u1ed1 Splog \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng th\u00f4ng b\u00e1o chi ti\u1ebft cho c\u00e1c trang web m\u00e0 ch\u00fang qu\u1ea3ng b\u00e1; m\u1ed9t s\u1ed1 kh\u00e1c kh\u00f4ng c\u00f3 n\u1ed9i dung g\u1ed1c c\u00f3 n\u1ed9i dung v\u00f4 ngh\u0129a ho\u1eb7c n\u1ed9i dung b\u1ecb \u0111\u00e1nh c\u1eafp t\u1eeb c\u00e1c trang web h\u1ee3p ph\u00e1p. C\u00e1c lo\u1ea1i t\u1ea5n c\u00f4ng t\u01b0\u01a1ng t\u1ef1 c\u0169ng \u0111\u01b0\u1ee3c th\u1ea5y tr\u00ean Wiki v\u00e0 c\u00e1c s\u1ed5 l\u01b0u b\u00fat kh\u00e1c ch\u1ea5p nh\u1eadn b\u00ecnh lu\u1eadn t\u1eeb ng\u01b0\u1eddi d\u00f9ng chung.<\/li>\n\n\n\n<li><strong>Th\u01b0 r\u00e1c tr\u00ean c\u00e1c trang web video<\/strong>: C\u00e1c trang web m\u1ea1ng x\u00e3 h\u1ed9i nh\u01b0 YouTube c\u0169ng b\u1ecb nhi\u1ec5m th\u01b0 r\u00e1c th\u01b0\u1eddng bao g\u1ed3m c\u00e1c b\u00ecnh lu\u1eadn v\u00e0 li\u00ean k\u1ebft \u0111\u1ebfn m\u1ed9t s\u1ed1 trang web khi\u00eau d\u00e2m ho\u1eb7c h\u1eb9n h\u00f2 ho\u1eb7c m\u1ed9t s\u1ed1 video kh\u00f4ng li\u00ean quan. \u0110\u00f4i khi nh\u1eefng b\u00ecnh lu\u1eadn n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o t\u1ef1 \u0111\u1ed9ng th\u00f4ng qua Bot.<\/li>\n\n\n\n<li><strong>Th\u01b0 r\u00e1c trong tin nh\u1eafn c\u1ee7a tr\u00f2 ch\u01a1i tr\u1ef1c tuy\u1ebfn<\/strong>: \u0111\u00f3 l\u00e0 h\u00e0ng lo\u1ea1t tin nh\u1eafn, y\u00eau c\u1ea7u tham gia m\u1ed9t nh\u00f3m c\u1ee5 th\u1ec3, vi ph\u1ea1m c\u00e1c \u0111i\u1ec1u kho\u1ea3n v\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u1ea3n quy\u1ec1n, v.v.<\/li>\n\n\n\n<li><strong>Spi ho\u1eb7c Spam qua \u0111i\u1ec7n tho\u1ea1i Internet<\/strong>: \u0110i\u1ec1u n\u00e0y s\u1eed d\u1ee5ng tho\u1ea1i qua \u0111i\u1ec7n tho\u1ea1i Internet (VoIP) \u0111\u1ec3 g\u1eedi th\u01b0 r\u00e1c. Th\u00f4ng th\u01b0\u1eddng, m\u1ed9t tin nh\u1eafn \u0111\u01b0\u1ee3c ghi \u00e2m tr\u01b0\u1edbc s\u1ebd \u0111\u01b0\u1ee3c ph\u00e1t khi ng\u01b0\u1eddi nh\u1eadn v\u00f4 t\u00ecnh nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t cu\u1ed9c g\u1ecdi r\u00e1c. N\u1ec1n t\u1ea3ng n\u00e0y l\u00e0 m\u1ee5c ti\u00eau d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng c\u1ee7a nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c v\u00ec VoIP r\u1ebb v\u00e0 d\u1ec5 \u1ea9n danh.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"types-of-spam-and-spamming-techniques\"><strong>C\u00e1c lo\u1ea1i th\u01b0 r\u00e1c v\u00e0 k\u1ef9 thu\u1eadt g\u1eedi th\u01b0 r\u00e1c<\/strong><\/h2>\n\n<h3 class=\"wp-block-heading\" id=\"types-of-spam\"><strong>C\u00e1c lo\u1ea1i th\u01b0 r\u00e1c<\/strong><\/h3>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Li\u00ean k\u1ebft \u0111\u1ed9c h\u1ea1i<\/strong>: C\u00e1c li\u00ean k\u1ebft g\u00e2y h\u1ea1i, g\u00e2y hi\u1ec3u l\u1ea7m ho\u1eb7c g\u00e2y h\u1ea1i cho m\u00e1y t\u00ednh c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n\n\n\n<li><strong>H\u1ed3 s\u01a1 gi\u1ea3 m\u1ea1o<\/strong>: Ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c c\u00f3 th\u1ec3 t\u1ea1o c\u00e1c h\u1ed3 s\u01a1 gi\u1ea3 m\u1ea1o tr\u00f4ng c\u00f3 v\u1ebb h\u1ee3p ph\u00e1p \u0111\u1ec3 tr\u00e1nh b\u1ecb ph\u00e1t hi\u1ec7n v\u00e0 d\u1ee5 nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng ph\u1ea3i l\u00e0 ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c k\u1ebft b\u1ea1n v\u1edbi h\u1ecd.<\/li>\n\n\n\n<li><strong>G\u1eedi th\u01b0 h\u00e0ng lo\u1ea1t<\/strong>: ch\u00fang \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bom th\u01b0 r\u00e1c; ch\u00fang l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c b\u00ecnh lu\u1eadn \u0111\u01b0\u1ee3c \u0111\u0103ng nhi\u1ec1u l\u1ea7n v\u1edbi c\u00f9ng m\u1ed9t v\u0103n b\u1ea3n, cho ph\u00e9p c\u00e1c th\u1ebb li\u00ean quan \u0111\u1ebfn b\u00ecnh lu\u1eadn tr\u1edf th\u00e0nh xu h\u01b0\u1edbng tr\u00ean c\u00e1c m\u1ea1ng x\u00e3 h\u1ed9i m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/li>\n\n\n\n<li><strong>\u0110\u00e1nh gi\u00e1 l\u1eeba \u0111\u1ea3o<\/strong>:Nh\u1eefng \u0111\u00e1nh gi\u00e1 n\u00e0y kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng s\u1ea3n ph\u1ea9m l\u00e0 ch\u00ednh h\u00e3ng v\u00e0 t\u1ed1t, ngay c\u1ea3 khi ng\u01b0\u1eddi \u0111\u00e1nh gi\u00e1 c\u00f3 th\u1ec3 ch\u01b0a s\u1eed d\u1ee5ng s\u1ea3n ph\u1ea9m \u0111\u00f3.<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading\" id=\"spamming-techniques\"><strong>K\u1ef9 thu\u1eadt spam<\/strong><\/h3>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Nh\u1ea5p chu\u1ed9t<\/strong>: C\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a href=\"https:\/\/owasp.org\/www-community\/attacks\/Clickjacking#:~:text=Clickjacking%2C%20also%20known%20as%20a,on%20the%20top%20level%20page.\" target=\"_blank\" rel=\"noreferrer noopener\">Ch\u1ec9nh s\u1eeda giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng<\/a>, k\u1ebb g\u1eedi th\u01b0 r\u00e1c l\u1eeba ng\u01b0\u1eddi d\u00f9ng nh\u1ea5p v\u00e0o c\u00e1c m\u1ee5c ti\u00eau v\u00f4 h\u00ecnh (v\u00ed d\u1ee5: n\u00fat) thu\u1ed9c v\u1ec1 m\u1ed9t trang kh\u00e1c. H\u00ecnh th\u1ee9c th\u01b0 r\u00e1c n\u00e0y ch\u1ee7 y\u1ebfu c\u00f3 th\u1ec3 th\u1ea5y tr\u00ean c\u00e1c blog v\u00e0 di\u1ec5n \u0111\u00e0n.<\/li>\n\n\n\n<li><strong>Ti\u1ec7n \u00edch m\u1edf r\u1ed9ng tr\u00ecnh duy\u1ec7t \u0111\u1ed9c h\u1ea1i th\u00f4ng qua t\u1ea3i xu\u1ed1ng t\u1ef1 \u0111\u1ed9ng<\/strong>: H\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng n\u00e0y x\u1ea3y ra b\u1eb1ng c\u00e1ch t\u1ea3i xu\u1ed1ng ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i t\u1eeb Internet m\u00e0 ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng bi\u1ebft. Lo\u1ea1i th\u01b0 r\u00e1c n\u00e0y th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng li\u00ean k\u1ebft \u0111\u1ed9c h\u1ea1i v\u00e0 c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y tr\u00ean blog, d\u1ea5u trang web, \u0111\u00e1nh gi\u00e1, v.v.<\/li>\n\n\n\n<li><strong>Tr\u00ecnh r\u00fat g\u1ecdn URL<\/strong>: Trong cu\u1ed9c t\u1ea5n c\u00f4ng spam n\u00e0y, URL r\u00fat g\u1ecdn s\u1ebd che gi\u1ea5u URL th\u1ef1c t\u1ebf v\u00e0 chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ebfn c\u00e1c \u0111\u00edch \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 \u0111\u1ed3ng \u00fd c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Lo\u1ea1i spam n\u00e0y th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra tr\u00ean c\u00e1c m\u1ea1ng x\u00e3 h\u1ed9i, blog nh\u1ecf, b\u00e0i \u0111\u00e1nh gi\u00e1, v.v.<\/li>\n\n\n\n<li><strong>Ti\u00eam m\u00e3 l\u1ec7nh k\u1ef9 thu\u1eadt x\u00e3 h\u1ed9i<\/strong>: Trong cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y, ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i b\u1ecb l\u1eeba th\u1ef1c thi m\u00e3 JavaScript \u0111\u1ed9c h\u1ea1i theo l\u1ef1a ch\u1ecdn c\u1ee7a spammer trong b\u1ed1i c\u1ea3nh trang web c\u1ee7a n\u1ea1n nh\u00e2n, do \u0111\u00f3 t\u1ea5n c\u00f4ng v\u00e0o l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. M\u1ed9t l\u1ea7n n\u1eefa, cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn c\u00e1c li\u00ean k\u1ebft kh\u00f3 hi\u1ec3u \u0111\u1ebfn c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ho\u1eb7c trang web \u0111\u1ed9c h\u1ea1i. N\u00f3 c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng bi\u1ec3u m\u1eabu tr\u00ean m\u1ed9t s\u1ed1 trang web \u0111\u00e1nh gi\u00e1, ch\u1eb3ng h\u1ea1n nh\u01b0 email.<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"spam-detection-techniques\"><strong>K\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c<\/strong><\/h2>\n\n\n<p>C\u00f3 ba chi\u1ebfn l\u01b0\u1ee3c ch\u00ednh \u0111\u1ec3 gi\u1ea3i quy\u1ebft th\u01b0 r\u00e1c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean ph\u00e1t hi\u1ec7n: C\u00e1c k\u1ef9 thu\u1eadt n\u00e0y c\u1ed1 g\u1eafng x\u00e1c \u0111\u1ecbnh v\u00e0 lo\u1ea1i b\u1ecf th\u01b0 r\u00e1c kh\u1ecfi h\u1ec7 th\u1ed1ng. <\/li>\n\n\n\n<li>Chi\u1ebfn l\u01b0\u1ee3c d\u1ef1a tr\u00ean s\u1ef1 suy gi\u1ea3m: Nh\u1eefng n\u1ed7 l\u1ef1c n\u00e0y nh\u1eb1m h\u1ea1 th\u1ea5p th\u1ee9 h\u1ea1ng th\u01b0 r\u00e1c trong danh s\u00e1ch tin nh\u1eafn. <\/li>\n\n\n\n<li>Chi\u1ebfn l\u01b0\u1ee3c d\u1ef1a tr\u00ean ph\u00f2ng ng\u1eeba: M\u1ee5c \u0111\u00edch l\u00e0 ng\u0103n ch\u1eb7n kh\u1ea3 n\u0103ng nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c \u0111\u00f3ng g\u00f3p v\u00e0o h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i giao di\u1ec7n ho\u1eb7c h\u1ea1n ch\u1ebf h\u00e0nh \u0111\u1ed9ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading\" id=\"latest-developments-in-antispam-techniques\"><strong>Nh\u1eefng ph\u00e1t tri\u1ec3n m\u1edbi nh\u1ea5t trong k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c<\/strong><\/h3>\n\n<h4 class=\"wp-block-heading\" id=\"email-spam\"><strong>Th\u01b0 r\u00e1c E-mail<\/strong><\/h4>\n\n\n<p>L\u1ecdc c\u1ed9ng t\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u00f4ng qua m\u1ea1ng x\u00e3 h\u1ed9i c\u00f3 t\u00ean l\u00e0 SocialFilter, \u0111\u00e2y l\u00e0 h\u1ec7 th\u1ed1ng l\u1ecdc th\u01b0 r\u00e1c c\u1ed9ng t\u00e1c s\u1eed d\u1ee5ng s\u1ef1 tin c\u1eady x\u00e3 h\u1ed9i \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o <a href=\"https:\/\/academic.oup.com\/jcmc\/article-abstract\/3\/1\/JCMC313\/4584354\" target=\"_blank\" rel=\"noreferrer noopener\">m\u1ea1ng x\u00e3 h\u1ed9i tr\u1ef1c tuy\u1ebfn<\/a> (OSN) \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 <a href=\"https:\/\/dl.acm.org\/doi\/abs\/10.1145\/1416950.1416953\" target=\"_blank\" rel=\"noreferrer noopener\">\u0111\u1ed9 tin c\u1eady c\u1ee7a ng\u01b0\u1eddi b\u00e1o c\u00e1o th\u01b0 r\u00e1c<\/a>. \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn d\u1ef1a tr\u00ean \u0111\u1ed3 th\u1ecb d\u1ef1a tr\u00ean \u0111\u1ed3 th\u1ecb OSN. SocialFilter h\u01b0\u1edbng \u0111\u1ebfn vi\u1ec7c b\u1ed5 sung c\u00e1c t\u00ednh n\u0103ng c\u1ee7a nhi\u1ec1u tr\u00ecnh ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c, qua \u0111\u00f3 d\u00e2n ch\u1ee7 h\u00f3a vi\u1ec7c gi\u1ea3m thi\u1ec3u th\u01b0 r\u00e1c. M\u1ed7i n\u00fat SocialFilter, \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd b\u1edfi m\u1ed9t qu\u1ea3n tr\u1ecb vi\u00ean con ng\u01b0\u1eddi, s\u1ebd g\u1eedi b\u00e1o c\u00e1o v\u1ec1 ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c \u0111\u1ebfn m\u1ed9t kho l\u01b0u tr\u1eef t\u1eadp trung.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"blog-spam\"><strong>Th\u01b0 r\u00e1c blog<\/strong><\/h4>\n\n\n<p>Blog l\u00e0 n\u1ec1n t\u1ea3ng n\u01a1i m\u1ecdi ng\u01b0\u1eddi th\u1ec3 hi\u1ec7n c\u1ea3m x\u00fac, chia s\u1ebb th\u00f4ng tin v\u00e0 giao ti\u1ebfp v\u1edbi nhau. V\u1edbi s\u1ef1 ph\u1ed5 bi\u1ebfn ng\u00e0y c\u00e0ng t\u0103ng, blog hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u00fac \u0111\u1ea9y l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp c\u1ee7a c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm blog ho\u1eb7c cho m\u1ee5c \u0111\u00edch qu\u1ea3ng c\u00e1o. C\u00e1c lo\u1ea1i blog n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Splog. Tuy nhi\u00ean, h\u1ea7u h\u1ebft c\u00e1c k\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n Splog hi\u1ec7n c\u00f3 \u0111\u1ec1u d\u1ef1a tr\u00ean n\u1ed9i dung, k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n do b\u1ea3n ch\u1ea5t n\u0103ng \u0111\u1ed9ng c\u1ee7a blog.<\/p>\n\n\n\n<p>Hi\u1ec7n nay, c\u00f3 ba k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ed1ng l\u1ea1i Splog:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>C\u00e1c k\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean ph\u00e1t hi\u1ec7n s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh ho\u1ea1t \u0111\u1ed9ng v\u1edbi m\u1ed9t t\u1eadp h\u1ee3p d\u1eef li\u1ec7u Technorati Query v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e1t hi\u1ec7n l\u1edbn h\u01a1n 60%.<\/li>\n\n\n\n<li>K\u1ef9 thu\u1eadt ph\u00e2n lo\u1ea1i ho\u1ea1t \u0111\u1ed9ng th\u00f4ng qua c\u00e1c b\u00ecnh lu\u1eadn tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e1t hi\u1ec7n l\u1edbn h\u01a1n 60%.<\/li>\n\n\n\n<li>C\u00e1c k\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean ph\u00e1t hi\u1ec7n s\u1eed d\u1ee5ng bi\u1ec3u \u0111\u1ed3 x\u00e3 h\u1ed9i \u0111\u01b0\u1ee3c nh\u00f3m l\u1ea1i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c \u1ea5n ph\u1ea9m tr\u00ean c\u00e1c trang blog th\u01b0\u01a1ng m\u1ea1i. K\u1ef9 thu\u1eadt n\u00e0y \u0111\u01b0\u1ee3c coi l\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t trong vi\u1ec7c ph\u00e1t hi\u1ec7n nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c.<\/li>\n<\/ol>\n\n\n<h4 class=\"wp-block-heading\" id=\"microblog-spam\"><strong>Th\u01b0 r\u00e1c Microblog<\/strong><\/h4>\n\n\n<p>Th\u01b0 r\u00e1c microblog l\u00e0 th\u01b0 r\u00e1c tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng microblog, ch\u1eb3ng h\u1ea1n nh\u01b0 Twitter, n\u01a1i c\u00f3 gi\u1edbi h\u1ea1n v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a tweet. \u0110\u1ec3 ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c microblog, c\u00f3 m\u1ed9t s\u1ed1 k\u1ef9 thu\u1eadt kh\u1ea3 d\u1ee5ng, bao g\u1ed3m:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p d\u1ef1a tr\u00ean t\u00ednh x\u00e1c \u0111\u1ecbnh nghi\u00ean c\u1ee9u c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u01b0 r\u00e1c.<\/li>\n\n\n\n<li>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn d\u1ef1a tr\u00ean ph\u00e2n lo\u1ea1i t\u1eadp trung v\u00e0o Khung Social Honeypot.<\/li>\n\n\n\n<li>C\u00e1c k\u1ef9 thu\u1eadt l\u00e0m suy y\u1ebfu t\u1eadp trung v\u00e0o X\u1ebfp h\u1ea1ng th\u00f4ng \u0111\u1ed3ng v\u00e0 X\u1ebfp h\u1ea1ng trang.<\/li>\n<\/ol>\n\n\n\n<p>Ngo\u00e0i ra c\u00f2n c\u00f3 c\u00e1c k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c k\u1ebft h\u1ee3p c\u00e1c nghi\u00ean c\u1ee9u t\u00ecnh hu\u1ed1ng v\u00e0 ph\u00e2n lo\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 <a href=\"https:\/\/hal.science\/hal-03200358\/document\" target=\"_blank\" rel=\"noreferrer noopener\">bi\u1ec3u \u0111\u1ed3 x\u00e3 h\u1ed9i d\u1ef1a tr\u00ean Mr. SPA<\/a>, c\u0169ng nh\u01b0 c\u00e1c k\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean vi\u1ec7c ph\u00e2n nh\u00f3m c\u00e1c chi\u1ebfn d\u1ecbch th\u01b0 r\u00e1c v\u00e0 d\u00e1n nh\u00e3n ch\u00fang b\u1eb1ng RF Classifier, c\u00f4ng th\u1ee9c Lasso t\u00edch h\u1ee3p v\u1edbi thu\u1eadt ng\u1eef ch\u00ednh quy h\u00f3a \u0111\u1ed3 th\u1ecb, Ph\u00e2n lo\u1ea1i r\u1eebng ng\u1eabu nhi\u00ean b\u1eb1ng c\u00e1c t\u00ednh n\u0103ng \u0111\u00e3 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 b\u1ed9 ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean ELM v\u1edbi c\u00e1c t\u00ednh n\u0103ng \u0111\u00e3 x\u00e1c \u0111\u1ecbnh.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"bookmarking-spam\"><strong>\u0110\u00e1nh d\u1ea5u th\u01b0 r\u00e1c<\/strong><\/h4>\n\n\n<p>\u0110\u00e1nh d\u1ea5u trang x\u00e3 h\u1ed9i \u0111\u00e3 ph\u00e1t tri\u1ec3n t\u1eeb \u0111\u00e1nh d\u1ea5u trang truy\u1ec1n th\u1ed1ng th\u00e0nh m\u1ed9t n\u1ec1n t\u1ea3ng n\u01a1i ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 th\u00eam, ch\u1ec9nh s\u1eeda ho\u1eb7c s\u1eeda \u0111\u1ed5i trang web ho\u1eb7c trang web \u0111\u1ec3 truy c\u1eadp trong t\u01b0\u01a1ng lai. C\u00e1c trang web n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng \u0111\u00e1nh d\u1ea5u c\u00e1c trang web kh\u00e1c nhau v\u00e0 chia s\u1ebb \u00fd ki\u1ebfn c\u1ee7a h\u1ecd v\u1ec1 c\u00e1c b\u00e0i vi\u1ebft, h\u00ecnh \u1ea3nh v\u00e0 video. Tuy nhi\u00ean, nhi\u1ec1u ch\u1ee7 s\u1edf h\u1eefu trang web s\u1eed d\u1ee5ng c\u00e1c trang \u0111\u00e1nh d\u1ea5u trang x\u00e3 h\u1ed9i \u0111\u1ec3 duy\u1ec7t c\u00e1c b\u00e0i vi\u1ebft th\u00fa v\u1ecb v\u00e0 bao g\u1ed3m c\u00e1c li\u00ean k\u1ebft. \u0110i\u1ec1u n\u00e0y khi\u1ebfn c\u00e1c trang web b\u1ecb nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c ti\u1ebfp c\u1eadn th\u00f4ng qua c\u00e1c li\u00ean k\u1ebft ng\u01b0\u1ee3c, v\u00ec nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c t\u1ea1o ra c\u00e1c d\u1ea5u trang th\u01b0 r\u00e1c h\u1ea5p d\u1eabn \u0111\u01b0\u1ee3c nh\u1eefng ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng nghi ng\u1edd l\u1ef1a ch\u1ecdn.<\/p>\n\n\n\n<p>\u0110\u1ec3 ch\u1ed1ng l\u1ea1i th\u01b0 r\u00e1c \u0111\u00e1nh d\u1ea5u trang, c\u00f3 nhi\u1ec1u k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>K\u1ef9 thu\u1eadt ph\u00e2n c\u1ee5m v\u00e0 ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n c\u1ee5m B\u1ea3n \u0111\u1ed3 t\u1ef1 t\u1ed5 ch\u1ee9c (SOM) v\u00e0 kh\u00e1m ph\u00e1 li\u00ean k\u1ebft.<\/li>\n\n\n\n<li>Tr\u00edch xu\u1ea5t v\u00e0 t\u1ed5ng h\u1ee3p \u0111\u1eb7c \u0111i\u1ec3m x\u00e1c su\u1ea5t.<\/li>\n\n\n\n<li>GraphLab Create v\u00e0 Logic m\u1ec1m x\u00e1c su\u1ea5t \u0111\u1ec3 tr\u00edch xu\u1ea5t t\u00ednh n\u0103ng<\/li>\n\n\n\n<li>Tr\u00ecnh ph\u00e2n lo\u1ea1i c\u00e2y quy\u1ebft \u0111\u1ecbnh t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 d\u1ed1c \u0111\u1ec3 ph\u00e2n lo\u1ea1i.<\/li>\n<\/ol>\n\n\n<h4 class=\"wp-block-heading\" id=\"social-network-spam\"><strong>Th\u01b0 r\u00e1c m\u1ea1ng x\u00e3 h\u1ed9i<\/strong><\/h4>\n\n\n<p>C\u00e1c k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c hi\u1ec7n t\u1ea1i \u0111\u00e3 x\u00e1c \u0111\u1ecbnh r\u1eb1ng c\u00e1c m\u00e1y ph\u00e1t th\u01b0 r\u00e1c tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i l\u00e0 robot. C\u00e1c robot n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Displayer, Bragger, Poster v\u00e0 Whisperer. C\u00e1c k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c cho m\u1ea1ng x\u00e3 h\u1ed9i bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ef7 l\u1ec7 FF: T\u1ef7 l\u1ec7 gi\u1eefa s\u1ed1 l\u1eddi m\u1eddi k\u1ebft b\u1ea1n v\u00e0 s\u1ed1 b\u1ea1n b\u00e8 hi\u1ec7n c\u00f3. <\/li>\n\n\n\n<li>T\u1ef7 l\u1ec7 URL: T\u1ef7 l\u1ec7 URL trong m\u1ed9t tin nh\u1eafn so v\u1edbi s\u1ed1 t\u1eeb. <\/li>\n\n\n\n<li>L\u1ef1a ch\u1ecdn b\u1ea1n b\u00e8: S\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng gi\u1eefa danh s\u00e1ch b\u1ea1n b\u00e8 c\u1ee7a ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c v\u00e0 n\u1ea1n nh\u00e2n. <\/li>\n\n\n\n<li>S\u1ed1 tin nh\u1eafn \u0111\u00e3 g\u1eedi: S\u1ed1 l\u01b0\u1ee3ng tin nh\u1eafn m\u00e0 ng\u01b0\u1eddi d\u00f9ng g\u1eedi trong m\u1ed9t khung th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh. <\/li>\n\n\n\n<li>S\u1ed1 l\u01b0\u1ee3ng b\u1ea1n b\u00e8: S\u1ed1 l\u01b0\u1ee3ng b\u1ea1n b\u00e8 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ul>\n\n\n\n<p>N\u00f3i c\u00e1ch kh\u00e1c, \u0111\u00e2y l\u00e0 c\u00e1c k\u1ef9 thu\u1eadt ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean spam-bot v\u00e0 h\u1ed3 s\u01a1 spam v\u00e0 ph\u00e2n lo\u1ea1i th\u1eddi gian ch\u1ea1y. C\u00e1c k\u1ef9 thu\u1eadt ph\u00e2n c\u1ee5m t\u1eadp trung v\u00e0o ph\u00e2n c\u1ee5m Markov tr\u00ean \u0111\u1ed3 th\u1ecb x\u00e3 h\u1ed9i v\u00e0 <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S1110016814000970#:~:text=The%20Self%2DOrganizing%20Map%20(SOM)%20is%20an%20unsupervised%20learning,a%20low%2Ddimensional%20topology%20map.\" target=\"_blank\" rel=\"noreferrer noopener\">Thu\u1eadt to\u00e1n h\u1ecdc SOM<\/a>, trong khi c\u00e1c k\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n v\u00e0 lo\u1ea1i b\u1ecf d\u1ef1a tr\u00ean ph\u00e2n c\u1ee5m gia t\u0103ng theo sau l\u00e0 ph\u00e2n lo\u1ea1i. C\u00e1c k\u1ef9 thu\u1eadt ph\u00e2n lo\u1ea1i v\u00e0 gi\u00e1m s\u00e1t t\u1eadp trung v\u00e0o Social Spam Guard d\u1ef1a tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n kh\u00f4ng gi\u00e1m s\u00e1t t\u1eadp trung v\u00e0o <a href=\"https:\/\/www.openphilanthropy.org\/research\/hits-based-giving\/\" target=\"_blank\" rel=\"noreferrer noopener\">Khung d\u1ef1a tr\u00ean HITS<\/a>.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"review-spam\"><strong>\u0110\u00e1nh gi\u00e1 th\u01b0 r\u00e1c<\/strong><\/h4>\n\n\n<p>Spam \u0111\u00e1nh gi\u00e1 l\u00e0 m\u1ed9t lo\u1ea1i th\u01b0 r\u00e1c xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng \u0111\u00e1nh gi\u00e1 tr\u00ean nhi\u1ec1u trang web th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed kh\u00e1c nhau. \u0110\u00e1nh gi\u00e1 t\u00edch c\u1ef1c c\u00f3 th\u1ec3 th\u00fac \u0111\u1ea9y ho\u1ea1t \u0111\u1ed9ng kinh doanh c\u1ee7a c\u00f4ng ty, nh\u01b0ng \u0111\u00e1nh gi\u00e1 ti\u00eau c\u1ef1c c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i cho c\u00f4ng ty. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c c\u1ed1 \u00fd <a href=\"https:\/\/www.techtarget.com\/whatis\/feature\/How-much-can-a-bad-review-hurt-your-business\" target=\"_blank\" rel=\"noreferrer noopener\">\u0111\u0103ng b\u00e0i \u0111\u00e1nh gi\u00e1 \u0111\u1ec3 l\u00e0m t\u1ed5n h\u1ea1i \u0111\u1ebfn danh ti\u1ebfng c\u1ee7a s\u1ea3n ph\u1ea9m ho\u1eb7c c\u00f4ng ty<\/a>v\u00e0 robot c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u00e1nh gi\u00e1 n\u00e0y. V\u00e0o n\u0103m 2013, m\u1ed9t m\u00f4 h\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u00e1nh gi\u00e1 t\u1ed5ng h\u1ee3p. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ph\u00f2ng th\u1ee7 m\u1edbi \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 kh\u00e1c bi\u1ec7t trong lu\u1ed3ng ng\u1eef ngh\u0129a gi\u1eefa c\u00e1c \u0111\u00e1nh gi\u00e1 gi\u1ea3 v\u00e0 \u0111\u00e1nh gi\u00e1 trung th\u1ef1c, v\u1ed1n kh\u00f3 ph\u00e1t hi\u1ec7n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n c\u00f3.<\/p>\n\n\n\n<p>Hi\u1ec7n nay, c\u00f3 m\u1ed9t s\u1ed1 k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c \u0111\u1ec3 ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c \u0111\u00e1nh gi\u00e1, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c k\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean ph\u00e2n lo\u1ea1i t\u1eadp trung v\u00e0o ph\u01b0\u01a1ng ph\u00e1p SVM h\u1ea1t nh\u00e2n tuy\u1ebfn t\u00ednh v\u00e0 ph\u01b0\u01a1ng ph\u00e1p d\u1ef1a tr\u00ean n-gram. <\/li>\n\n\n\n<li>K\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean quy t\u1eafc. <\/li>\n\n\n\n<li>K\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean t\u00ednh n\u0103ng nh\u1ea1y c\u1ea3m v\u1edbi th\u1eddi gian. <\/li>\n\n\n\n<li>C\u00e1c k\u1ef9 thu\u1eadt k\u1ebft h\u1ee3p d\u1ef1a tr\u00ean khu\u00f4n kh\u1ed5 ph\u00e2n lo\u1ea1i v\u00e0 nh\u00f3m. <\/li>\n\n\n\n<li>C\u00e1c k\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean ph\u00e2n lo\u1ea1i t\u1eadp trung v\u00e0o vi\u1ec7c t\u1ea1o ra v\u00e0 ph\u00e2n t\u00edch c\u00e1c b\u00e0i \u0111\u00e1nh gi\u00e1 t\u1ed5ng h\u1ee3p. <\/li>\n\n\n\n<li>K\u1ef9 thu\u1eadt d\u1ef1a tr\u00ean m\u1ea1ng l\u01b0\u1edbi truy\u1ec1n b\u00e1 ni\u1ec1m tin v\u00f2ng l\u1eb7p (LBP).<\/li>\n<\/ul>\n\n\n<h4 class=\"wp-block-heading\" id=\"location-search-spam\"><strong>Th\u01b0 r\u00e1c t\u00ecm ki\u1ebfm v\u1ecb tr\u00ed<\/strong><\/h4>\n\n\n<p>Theo nghi\u00ean c\u1ee9u v\u1ec1 an ninh m\u1ea1ng, nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c c\u00f3 th\u1ec3 x\u00e2m nh\u1eadp v\u00e0 ph\u00e1 v\u1ee1 h\u1ec7 th\u1ed1ng t\u00ecm ki\u1ebfm h\u1ee3p l\u1ec7 b\u1eb1ng c\u00e1ch li\u00ean k\u1ebft c\u00e1c th\u1ebb kh\u00f4ng li\u00ean quan v\u1edbi c\u00e1c t\u00e0i li\u1ec7u ho\u1eb7c th\u1eadm ch\u00ed ng\u1eabu nhi\u00ean \u0111\u01b0a c\u00e1c thu\u1eadt ng\u1eef li\u00ean quan \u0111\u1ebfn m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m c\u1ee5 th\u1ec3 v\u00e0o t\u00e0i li\u1ec7u. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c tr\u00ean trang web \u0111\u00e1nh d\u1ea5u trang x\u00e3 h\u1ed9i d\u1ef1a tr\u00ean v\u1ecb tr\u00ed, Foursquare, \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y. Foursquare cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 l\u1ea1i l\u1eddi khuy\u00ean v\u1ec1 nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m v\u00e0 \u0111i\u1ec3m tham quan kh\u00e1c nhau, m\u00e0 nh\u1eefng ng\u01b0\u1eddi d\u00f9ng kh\u00e1c c\u00f3 th\u1ec3 truy c\u1eadp. Tuy nhi\u00ean, nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c \u0111\u0103ng n\u1ed9i dung kh\u00f4ng li\u00ean quan, ch\u1eb3ng h\u1ea1n nh\u01b0 l\u1eddi khuy\u00ean kinh doanh, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng quan t\u00e2m \u0111\u1ebfn vi\u1ec7c t\u00ecm hi\u1ec3u v\u1ec1 m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m c\u1ee5 th\u1ec3 hi\u1ec3u sai.<\/p>\n\n\n\n<p>T\u00e0i li\u1ec7u n\u00e0y ph\u00e2n t\u00edch nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c g\u1ee3i \u00fd, nh\u1eb1m m\u1ee5c \u0111\u00edch ph\u00e1t tri\u1ec3n c\u00e1c c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u0111\u0103ng c\u00e1c g\u1ee3i \u00fd th\u01b0 r\u00e1c. C\u00e1c k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c c\u1ee7a Location Search d\u1ef1a tr\u00ean ph\u00e2n lo\u1ea1i v\u00e0 c\u1ee5m t\u1eadp trung v\u00e0o ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean Random Forest v\u00e0 Decision Tree, <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0031320312002117\" target=\"_blank\" rel=\"noreferrer noopener\">Ph\u00e2n c\u1ee5m EM<\/a> \u0111\u1ec3 ph\u00e2n lo\u1ea1i v\u00e0 ph\u00e2n lo\u1ea1i R\u1eebng ng\u1eabu nhi\u00ean.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"comment-spam\"><strong>B\u00ecnh lu\u1eadn spam<\/strong><\/h4>\n\n\n<p>Th\u01b0 r\u00e1c b\u00ecnh lu\u1eadn r\u1ea5t ph\u1ed5 bi\u1ebfn tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i, \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean YouTube v\u00e0 c\u00e1c trang tin t\u1ee9c. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p khai th\u00e1c d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t \u0111\u1ec3 l\u1ecdc c\u00e1c b\u00ecnh lu\u1eadn th\u01b0 r\u00e1c tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n YouTube \u0111\u1ec3 ch\u1ed1ng l\u1ea1i cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng n\u00e0y. Kh\u00f4ng gi\u1ed1ng nh\u01b0 ph\u00e2n t\u00edch n\u1ed9i dung \u0111\u1ec3 ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y khai th\u00e1c h\u00e0nh vi b\u00ecnh lu\u1eadn \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1eadn d\u1ee5ng <a href=\"https:\/\/deepai.org\/publication\/mining-user-comment-activity-for-detecting-forum-spammers-in-youtube\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00ednh n\u0103ng hasSpamHint c\u1ee7a YouTube<\/a> \u0111i k\u00e8m v\u1edbi b\u00ecnh lu\u1eadn c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Sau \u0111\u00e2y l\u00e0 c\u00e1c b\u01b0\u1edbc li\u00ean quan:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Truy xu\u1ea5t c\u00e1c b\u00ecnh lu\u1eadn \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u l\u00e0 hasSpamHint cho m\u1ed9t video nh\u1ea5t \u0111\u1ecbnh.<\/li>\n\n\n\n<li>Tr\u00edch xu\u1ea5t ID ng\u01b0\u1eddi d\u00f9ng \u0111\u1eb1ng sau c\u00e1c b\u00ecnh lu\u1eadn nghi ng\u1edd l\u00e0 spam \u0111\u1ec3 thu th\u1eadp th\u00f4ng tin v\u1ec1 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh lu\u1eadn c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n\n\n\n<li>L\u1ea5y c\u00e1c thu\u1ed9c t\u00ednh nh\u01b0 v\u0103n b\u1ea3n b\u00ecnh lu\u1eadn, d\u1ea5u th\u1eddi gian, VideoID c\u1ee7a video \u0111\u01b0\u1ee3c b\u00ecnh lu\u1eadn v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ebfn nh\u1ecb ph\u00e2n hasSpamHint t\u1eeb nh\u1eadt k\u00fd s\u1eed d\u1ee5ng trong di\u1ec5n \u0111\u00e0n th\u1ea3o lu\u1eadn.<\/li>\n\n\n\n<li>T\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c bi\u1ebfn bi\u1ec3u th\u1ecb \u00fd \u0111\u1ecbnh spam c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n\n\n\n<li>G\u00e1n \u0111i\u1ec3m cho ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u1ecd c\u00f3 ph\u1ea3i l\u00e0 ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c hay kh\u00f4ng.<\/li>\n\n\n\n<li>\u00c1p d\u1ee5ng quy t\u1eafc c\u1ee5 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c ki\u1ec3m tra d\u1eef li\u1ec7u th\u1ee7 c\u00f4ng \u0111\u1ec3 \u0111\u00e1nh d\u1ea5u b\u1ea5t k\u1ef3 ng\u01b0\u1eddi d\u00f9ng n\u00e0o \u0111\u00e1p \u1ee9ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee7a quy t\u1eafc (c\u00f3 \u00edt nh\u1ea5t n\u0103m b\u00ecnh lu\u1eadn) l\u00e0 ng\u01b0\u1eddi g\u1eedi th\u01b0 r\u00e1c.<\/li>\n<\/ol>\n\n\n\n<p>K\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 d\u1ef1a tr\u00ean quy t\u1eafc v\u00e0 <a href=\"https:\/\/arxiv.org\/pdf\/2004.13820\" target=\"_blank\" rel=\"noreferrer noopener\">S\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng ch\u1ee7 \u0111\u1ec1 do NLP t\u1ea1o ra<\/a> trong c\u00e1c b\u00e0i \u0111\u0103ng v\u00e0 b\u00ecnh lu\u1eadn theo sau l\u00e0 ph\u00e2n lo\u1ea1i.<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"crossmedia-spam\"><strong>Th\u01b0 r\u00e1c \u0111a ph\u01b0\u01a1ng ti\u1ec7n<\/strong><\/h4>\n\n\n<p>Th\u01b0 r\u00e1c \u0111a ph\u01b0\u01a1ng ti\u1ec7n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u1ed1ng th\u01b0 r\u00e1c \u0111\u1ed9c \u0111\u00e1o ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng kh\u00e1c nhau. N\u00f3 bao g\u1ed3m vi\u1ec7c x\u00e1c \u0111\u1ecbnh nhanh th\u01b0 r\u00e1c tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c m\u1ea1ng x\u00e3 h\u1ed9i v\u00e0 t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c v\u1edbi s\u1ef1 tham gia c\u1ee7a m\u1ed9t t\u1eadp d\u1eef li\u1ec7u l\u1edbn. M\u1eb7c d\u00f9 kh\u00f4ng th\u1ec3 \u00e1p d\u1ee5ng m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 duy nh\u1ea5t cho t\u1ea5t c\u1ea3 c\u00e1c h\u00ecnh th\u1ee9c v\u00e0 n\u1ec1n t\u1ea3ng th\u01b0 r\u00e1c, nh\u01b0ng k\u1ef9 thu\u1eadt n\u00e0y l\u00e0 m\u1ed9t khu\u00f4n kh\u1ed5 \u0111a n\u1ec1n t\u1ea3ng s\u00e1ng t\u1ea1o \u0111\u1ec3 ph\u00e1t hi\u1ec7n th\u01b0 r\u00e1c x\u00e3 h\u1ed9i.<\/p>\n\n\n\n<p>K\u1ef9 thu\u1eadt n\u00e0y \u0111\u01b0\u1ee3c chia th\u00e0nh ba th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u00c1nh x\u1ea1 v\u00e0 l\u1eafp r\u00e1p s\u1eed d\u1ee5ng vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng m\u1ea1ng x\u00e3 h\u1ed9i c\u1ee5 th\u1ec3 th\u00e0nh m\u1ed9t m\u00f4 h\u00ecnh chu\u1ea9n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong khu\u00f4n kh\u1ed5 cho \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3.<\/li>\n\n\n\n<li>L\u1ecdc tr\u01b0\u1edbc d\u1ef1a tr\u00ean danh s\u00e1ch \u0111en, b\u0103m v\u00e0 so s\u00e1nh \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed3ng \u0111\u1ec3 so s\u00e1nh c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ebfn v\u1edbi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng th\u01b0 r\u00e1c \u0111\u00e3 bi\u1ebft.<\/li>\n\n\n\n<li>Ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean c\u00e1c k\u1ef9 thu\u1eadt h\u1ecdc m\u00e1y c\u00f3 gi\u00e1m s\u00e1t \u0111\u1ec3 ph\u00e2n lo\u1ea1i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ebfn v\u00e0 li\u00ean quan.<\/li>\n<\/ol>\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">K\u1ebft lu\u1eadn<\/h2>\n\n\n<p>Th\u01b0 r\u00e1c l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn tr\u00ean Internet v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0 tri\u1ec3n khai tr\u00ean nhi\u1ec1u n\u1ec1n t\u1ea3ng kh\u00e1c nhau v\u1edbi nhi\u1ec1u m\u1ee9c \u0111\u1ed9 th\u00e0nh c\u00f4ng kh\u00e1c nhau. C\u00e1c k\u1ef9 thu\u1eadt n\u00e0y v\u1ec1 c\u01a1 b\u1ea3n thu\u1ed9c v\u1ec1 c\u00e1c thu\u1eadt to\u00e1n x\u00e1c \u0111\u1ecbnh, x\u00e1c su\u1ea5t ho\u1eb7c d\u1ef1a tr\u00ean \u0111\u1ed3 th\u1ecb, nh\u01b0ng m\u1ed7i lo\u1ea1i \u0111\u1ec1u c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn x\u00e1c su\u1ea5t th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1ea5t trong c\u00e1c k\u1ef9 thu\u1eadt hi\u1ec7n \u0111\u1ea1i, v\u00ec c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a m\u1ea1ng x\u00e3 h\u1ed9i kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u00e0i li\u1ec7u ho\u1eb7c trang web ti\u00eau chu\u1ea9n. Tuy nhi\u00ean, cu\u1ed9c chi\u1ebfn ch\u1ed1ng th\u01b0 r\u00e1c l\u00e0 m\u1ed9t tr\u00f2 ch\u01a1i kh\u00f4ng bao gi\u1edd k\u1ebft th\u00fac khi nh\u1eefng k\u1ebb g\u1eedi th\u01b0 r\u00e1c ph\u00e1t tri\u1ec3n c\u00e1c ph\u01b0\u01a1ng ph\u00e1p m\u1edbi \u0111\u1ec3 tr\u00e1nh b\u1ecb ph\u00e1t hi\u1ec7n. <\/p>\n\n\n\n<p>Do \u0111\u00f3, vi\u1ec7c li\u00ean t\u1ee5c c\u1ea3nh gi\u00e1c v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 thu\u1eadt ch\u1ed1ng th\u01b0 r\u00e1c m\u1edbi v\u00e0 t\u1ed1t h\u01a1n l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ch\u1ed1ng th\u01b0 r\u00e1c hi\u1ec7u qu\u1ea3.<\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u01b0 r\u00e1c l\u00e0 nh\u1eefng tin nh\u1eafn kh\u00f4ng mong mu\u1ed1n ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c g\u1eedi ho\u1eb7c nh\u1eadn qua ph\u01b0\u01a1ng ti\u1ec7n \u0111i\u1ec7n t\u1eed nh\u01b0 email, tin nh\u1eafn t\u1ee9c th\u1eddi, blog, nh\u00f3m tin t\u1ee9c, ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i, t\u00ecm ki\u1ebfm tr\u00ean web v\u00e0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, k\u00e8m theo ti\u1ec1n ph\u1ea1t qu\u1ea3ng c\u00e1o, l\u1eeba \u0111\u1ea3o, ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, v.v. <a class=\"more-link\" href=\"https:\/\/securitybriefing.net\/vi\/thu-rac\/phat-trien-moi-nhat-ve-phat-hien-va-chong-spam-xa-hoi\/\">Ti\u1ebfp t\u1ee5c \u0111\u1ecdc <span class=\"screen-reader-text\">Nh\u1eefng ph\u00e1t tri\u1ec3n g\u1ea7n \u0111\u00e2y trong vi\u1ec7c ph\u00e1t hi\u1ec7n v\u00e0 ch\u1ed1ng l\u1ea1i th\u01b0 r\u00e1c x\u00e3 h\u1ed9i<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":1584,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-1564","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-spam","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Latest Techniques for Detecting and Preventing Social Spam<\/title>\n<meta name=\"description\" content=\"Discover advanced algorithms and collaborative filtering techniques used to combat social spam on various online platforms.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/securitybriefing.net\/vi\/thu-rac\/phat-trien-moi-nhat-ve-phat-hien-va-chong-spam-xa-hoi\/\" 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