{"id":19403,"date":"2024-06-25T14:37:43","date_gmt":"2024-06-25T07:37:43","guid":{"rendered":"https:\/\/thegioifirewall.com\/?p=19403"},"modified":"2024-12-05T08:56:39","modified_gmt":"2024-12-05T08:56:39","slug":"lam-the-nao-de-bao-ve-ban-than-khoi-mot-cuoc-lua-dao-spear-phishing","status":"publish","type":"post","link":"https:\/\/vacif.com\/en\/lam-the-nao-de-bao-ve-ban-than-khoi-mot-cuoc-lua-dao-spear-phishing\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u1ea3n th\u00e2n kh\u1ecfi m\u1ed9t cu\u1ed9c l\u1eeba \u0111\u1ea3o spear phishing."},"content":{"rendered":"
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Nh\u01b0 t\u00ean g\u1ecdi, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing l\u00e0 nh\u1eefng chi\u00eau l\u1eeba \u0111\u1ea3o \u0111\u01b0\u1ee3c nh\u1eafm \u0111\u1ebfn m\u1ed9t c\u00e1ch r\u1ea5t c\u00f3 m\u1ee5c ti\u00eau. Th\u01b0\u1eddng x\u1ea3y ra trong m\u00f4i tr\u01b0\u1eddng chuy\u00ean nghi\u1ec7p, nh\u1eefng k\u1ebb l\u1eeba \u0111\u1ea3o n\u00e0y s\u0103n m\u1ee5c ti\u00eau l\u00e0 nh\u1eefng “con c\u00e1 l\u1edbn”, nh\u01b0 nh\u00e2n vi\u00ean c\u1ea5p cao c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o t\u00e0i ch\u00ednh ho\u1eb7c d\u1eef li\u1ec7u c\u1ee7a c\u00f4ng ty. T\u1eeb \u0111\u00f3, c\u00e1c k\u1ebb l\u1eeba \u0111\u1ea3o s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt k\u1ef9 n\u0103ng x\u00e3 h\u1ed9i (c\u00f2n g\u1ecdi l\u00e0 thao t\u00fang) \u0111\u1ec3 l\u1eeba \u0111\u1ea3o m\u1ee5c ti\u00eau chuy\u1ec3n ti\u1ec1n cho h\u1ecd ho\u1eb7c cung c\u1ea5p truy c\u1eadp v\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng quan tr\u1ecdng c\u1ee7a c\u00f4ng ty. \u0110\u00f4i khi, \u0111\u00e2y l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u1ea3 hai ph\u01b0\u01a1ng th\u1ee9c.<\/p>\n\n\n\n

M\u1ed9t trong nh\u1eefng v\u00ed d\u1ee5 \u0111\u00e1ng ch\u00fa \u00fd nh\u1ea5t v\u1ec1 c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing \u0111\u1ebfn t\u1eeb c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng Shamoon2 x\u1ea3y ra t\u1ea1i Saudi Arabia v\u00e0o n\u0103m 2016. C\u00e1c \u0111\u1ee3t t\u1ea5n c\u00f4ng li\u00ean ti\u1ebfp cu\u1ed1i c\u00f9ng \u0111\u00e3 l\u00e0m nhi\u1ec5m ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i v\u00e0o m\u00e1y t\u00ednh v\u00e0 ph\u00e1 h\u1ee7y c\u00e1c h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

V\u1eady, cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing c\u1ee5 th\u1ec3 n\u00e0y \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? C\u00e1c t\u1ed9i ph\u1ea1m m\u1ea1ng \u0111\u00e3 nh\u1eafm m\u1ee5c ti\u00eau c\u00e1c t\u1ed5 ch\u1ee9c c\u1ee5 th\u1ec3 t\u1ea1i Saudi Arabia v\u1edbi c\u00e1c email ch\u1ee9a \u0111\u00ednh k\u00e8m \u0111\u1ed9c h\u1ea1i. Khi n\u1ea1n nh\u00e2n nh\u1ea5p v\u00e0 m\u1edf \u0111\u00ednh k\u00e8m, h\u1ecd \u0111\u00e3 b\u1ecb nhi\u1ec5m ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, d\u1eef li\u1ec7u quan tr\u1ecdng c\u1ee7a c\u00f4ng ty b\u1ecb l\u1ea5y c\u1eafp v\u00e0 h\u1ec7 th\u1ed1ng b\u1ecb x\u00f3a s\u1ea1ch m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/p>\n\n\n\n

Cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing \u0111\u00e3 t\u1ed3n t\u1ea1i t\u1eeb l\u00e2u nh\u01b0ng v\u1eabn hi\u1ec7u qu\u1ea3 nh\u01b0 ng\u00e0y n\u00e0o. S\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a spear phishing d\u1ef1a tr\u00ean s\u1ef1 quen thu\u1ed9c. Th\u00f4ng th\u01b0\u1eddng, c\u00e1c t\u1ed9i ph\u1ea1m m\u1ea1ng gi\u1ea3 m\u1ea1o th\u00e0nh t\u1ed5 ch\u1ee9c ho\u1eb7c c\u00e1 nh\u00e2n m\u00e0 b\u1ea1n quen bi\u1ebft v\u00e0 bao g\u1ed3m m\u1ed9t n\u1ed9i dung n\u00e0o \u0111\u00f3, m\u1ed9t li\u00ean k\u1ebft, m\u1ed9t t\u1ec7p \u0111\u00ednh k\u00e8m email, v.v. M\u00e0 h\u1ecd bi\u1ebft b\u1ea1n s\u1ebd mu\u1ed1n t\u01b0\u01a1ng t\u00e1c.<\/p>\n\n\n\n

V\u00ed d\u1ee5, c\u00e1c t\u1ed9i ph\u1ea1m m\u1ea1ng \u0111\u00e3 t\u1eadn d\u1ee5ng c\u00e1c th\u1ea3m h\u1ecda trong c\u00e1c tin t\u1ee9c n\u1ed5i b\u1eadt v\u00e0 s\u1eed d\u1ee5ng email c\u00f3 m\u1ee5c ti\u00eau, gi\u1ea3 danh t\u1ed5 ch\u1ee9c t\u1eeb thi\u1ec7n y\u00eau c\u1ea7u quy\u00ean g\u00f3p. Trong tr\u01b0\u1eddng h\u1ee3p Shamoon2, c\u00e1c k\u1ebb t\u1ea5n c\u00f4ng \u0111\u00e3 l\u00f4i k\u00e9o n\u1ea1n nh\u00e2n b\u1eb1ng \u0111\u00ednh k\u00e8m email h\u1ea5p d\u1eabn \u0111\u01b0\u1ee3c g\u1eedi t\u1eeb c\u00e1c t\u1ed5 ch\u1ee9c m\u00e0 n\u1ea1n nh\u00e2n c\u00f3 l\u1ebd s\u1ebd tin t\u01b0\u1edfng. Thay v\u00ec quy\u00ean g\u00f3p v\u00e0o t\u1ed5 ch\u1ee9c t\u1eeb thi\u1ec7n m\u00e0 h\u1ecd l\u1ef1a ch\u1ecdn, ho\u1eb7c m\u1edf m\u1ed9t t\u1ec7p \u0111\u00ednh k\u00e8m v\u0103n ph\u00f2ng l\u00e0nh m\u1ea1nh, n\u1ea1n nh\u00e2n \u0111\u00e3 t\u1ef1 nhi\u1ec5m malware v\u00e0o h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

H\u01a1n n\u1eefa, ch\u00fang ta \u0111\u00e3 ch\u1ee9ng ki\u1ebfn \u200b\u200bc\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t h\u00ecnh th\u1ee9c ho\u00e0n to\u00e0n m\u1edbi v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a deepfakes AI. B\u00e2y gi\u1edd, thay v\u00ec ti\u1ebfp c\u1eadn n\u1ea1n nh\u00e2n qua email, c\u00e1c k\u1ebb l\u1eeba \u0111\u1ea3o tinh vi t\u1ea1o deepfakes gi\u1ea3 m\u1ea1o nh\u00e2n vi\u00ean trong cu\u1ed9c g\u1ecdi video. T\u1ea5t c\u1ea3 di\u1ec5n ra trong th\u1eddi gian th\u1ef1c. \u0110i\u1ec1u n\u00e0y \u0111\u00e3 x\u1ea3y ra t\u1ea1i Hong Kong v\u00e0o th\u00e1ng 2 n\u0103m 2024, khi m\u1ed9t lo\u1ea1t deepfakes \u0111\u00e3 \u00e1p l\u1ef1c l\u00ean qu\u1ea3n l\u00fd t\u00e0i ch\u00ednh c\u1ee7a m\u1ed9t c\u00f4ng ty \u0111\u1ec3 chuy\u1ec3n kho\u1ea3n 25 tri\u1ec7u \u0111\u00f4 la cho c\u00e1c k\u1ebb l\u1eeba \u0111\u1ea3o \u0111i\u1ec1u h\u00e0nh deepfakes.<\/p>\n\n\n\n

C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing (v\u00e0 phishing th\u00f4ng th\u01b0\u1eddng) c\u00f3 th\u1ec3 r\u1ea5t tinh vi. Tuy nhi\u00ean, \u0111\u1eebng lo l\u1eafng, b\u1ea1n c\u00f3 r\u1ea5t nhi\u1ec1u c\u00e1ch \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi m\u1ed1i \u0111e d\u1ecda n\u00e0y.<\/p>\n\n\n\n

\u0110\u1ea7u ti\u00ean.<\/p>\n\n\n\n

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  1. \u0110i th\u1eb3ng \u0111\u1ebfn ngu\u1ed3n g\u1ed1c<\/strong>.<\/li>\n<\/ol>\n\n\n\n

    C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing c\u00f3 th\u1ec3 r\u1ea5t d\u1ec5 d\u00e0ng khi\u1ebfn b\u1ea1n b\u1ecb \u0111\u00e1nh l\u1eeba. Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c t\u1ed9i ph\u1ea1m m\u1ea1ng \u0111\u00e3 c\u00f3 th\u1ec3 gi\u1ea3 m\u1ea1o c\u00e1c t\u1ed5 ch\u1ee9c t\u1eeb thi\u1ec7n uy t\u00edn ho\u1eb7c c\u00e1c \u0111\u1ed1i t\u00e1c kinh doanh v\u00e0 kh\u00e1ch h\u00e0ng c\u1ee7a nh\u00e0 tuy\u1ec3n d\u1ee5ng. V\u00ec v\u1eady, n\u1ebfu b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t email t\u1eeb m\u1ed9t t\u1ed5 ch\u1ee9c y\u00eau c\u1ea7u quy\u00ean g\u00f3p ho\u1eb7c t\u1eeb m\u1ed9t \u0111\u1ed1i t\u00e1c y\u00eau c\u1ea7u b\u1ea1n m\u1edf m\u1ed9t t\u1ec7p tin m\u00e0 b\u1ea1n kh\u00f4ng y\u00eau c\u1ea7u, m\u1ed9t nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n l\u00e0 h\u00e3y \u0111i th\u1eb3ng \u0111\u1ebfn t\u1ed5 ch\u1ee9c th\u00f4ng qua m\u1ed9t k\u00eanh li\u00ean l\u1ea1c kh\u00e1c ngo\u00e0i email. Truy c\u1eadp v\u00e0o trang web c\u1ee7a c\u00f4ng ty v\u00e0 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u th\u00eam t\u1eeb \u0111\u00f3. Nh\u01b0 v\u1eady, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng tin ch\u00ednh x\u00e1c v\u00e0 c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111\u00fang, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c tay t\u1ea5n c\u00f4ng m\u1ea1ng.<\/p>\n\n\n\n

    Lu\u00f4n lu\u00f4n ki\u1ec3m tra t\u00ednh h\u1ee3p ph\u00e1p tr\u01b0\u1edbc ti\u00ean. C\u00e1c email spear phishing d\u1ef1a v\u00e0o b\u1ea1n, h\u1ecd mu\u1ed1n b\u1ea1n nh\u1ea5p v\u00e0o m\u1ed9t li\u00ean k\u1ebft ho\u1eb7c m\u1edf m\u1ed9t t\u1ec7p \u0111\u00ednh k\u00e8m. Nh\u01b0ng tr\u01b0\u1edbc khi b\u1ea1n l\u00e0m b\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec, lu\u00f4n lu\u00f4n c\u1ea7n ki\u1ec3m tra n\u1ed9i dung c\u1ee7a email \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh h\u1ee3p ph\u00e1p. Di chu\u1ed9t qua m\u1ed9t li\u00ean k\u1ebft v\u00e0 xem n\u00f3 c\u00f3 d\u1eabn \u0111\u1ebfn m\u1ed9t URL \u0111\u00e1ng tin c\u1eady kh\u00f4ng. Ho\u1eb7c n\u1ebfu b\u1ea1n kh\u00f4ng ch\u1eafc ch\u1eafn v\u1ec1 n\u1ed9i dung c\u1ee7a m\u1ed9t email ho\u1eb7c ngu\u1ed3n g\u1ed1c c\u1ee7a n\u00f3, h\u00e3y t\u00ecm ki\u1ebfm nhanh tr\u00ean Google v\u00e0 t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00e1c c\u1ee7a chi\u1ebfn d\u1ecbch n\u00e0y, v\u00e0 nh\u1eefng g\u00ec nh\u1eefng tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3 c\u00f3 th\u1ec3 n\u00f3i v\u1edbi b\u1ea1n v\u1ec1 t\u00ednh h\u1ee3p ph\u00e1p c\u1ee7a email.<\/p>\n\n\n\n

      \n
    1. Nh\u1eefng k\u1ebb l\u1eeba \u0111\u1ea3o nghi\u00ean c\u1ee9u k\u1ef9 \u2014 h\u00e3y lu\u00f4n gi\u1eef c\u1ea3nh gi\u00e1c.<\/strong><\/li>\n<\/ol>\n\n\n\n

      Nh\u1eefng k\u1ebb l\u1eeba \u0111\u1ea3o l\u1ef1a ch\u1ecdn n\u1ea1n nh\u00e2n c\u1ee7a h\u1ecd m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn trong c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng nh\u1eafm m\u1ee5c ti\u00eau n\u00e0y. H\u1ecd s\u0103n \u0111u\u1ed5i nh\u00e2n vi\u00ean c\u00f3 quy\u1ec1n truy c\u1eadp th\u00f4ng tin v\u00e0 qu\u1ef9 ti\u1ec1n, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u v\u1ec1 h\u1ecd. S\u1eed d\u1ee5ng c\u00e1c h\u1ed3 s\u01a1 c\u00f4ng khai, c\u00e1c trang m\u00f4i gi\u1edbi d\u1eef li\u1ec7u, c\u00e1c trang t\u00ecm ng\u01b0\u1eddi v\u00e0 th\u00f4ng tin t\u1eeb m\u1ea1ng x\u00e3 h\u1ed9i, c\u00e1c k\u1ebb l\u1eeba \u0111\u1ea3o thu th\u1eadp th\u00f4ng tin t\u00ecnh b\u00e1o v\u1ec1 m\u1ee5c ti\u00eau c\u1ee7a h\u1ecd. V\u1edbi nh\u1eefng th\u00f4ng tin n\u00e0y, h\u1ecd c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c tham chi\u1ebfu trong cu\u1ed9c tr\u00f2 chuy\u1ec7n m\u00e0 nghe c\u00f3 v\u1ebb th\u00f4ng th\u1ea1o h\u01a1n, c\u00e1 nh\u00e2n h\u01a1n v\u00e0 do \u0111\u00f3 c\u00f3 s\u1ee9c thuy\u1ebft ph\u1ee5c h\u01a1n. Nh\u01b0ng ch\u1ec9 v\u00ec nh\u1eefng g\u00ec \u0111\u01b0\u1ee3c n\u00f3i c\u00f3 v\u1ebb quen thu\u1ed9c m\u1ed9t ch\u00fat kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 n\u00f3 lu\u00f4n \u0111\u1ebfn t\u1eeb m\u1ed9t ngu\u1ed3n \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n

        \n
      1. D\u1ecdn d\u1eb9p hi\u1ec7n di\u1ec7n c\u1ee7a b\u1ea1n tr\u00ean m\u1ea1ng.<\/strong><\/li>\n<\/ol>\n\n\n\n

        C\u00e1c t\u00ednh n\u0103ng nh\u01b0 McAfee Personal Data Cleanup c\u00f3 th\u1ec3 gi\u00fap lo\u1ea1i b\u1ecf th\u00f4ng tin c\u00e1 nh\u00e2n t\u1eeb m\u1ed9t s\u1ed1 trong nh\u1eefng trang m\u00f4i gi\u1edbi d\u1eef li\u1ec7u nguy hi\u1ec3m nh\u1ea5t hi\u1ec7n nay. T\u00f4i c\u0169ng lu\u00f4n theo d\u00f5i nh\u1eefng trang \u0111\u00f3 n\u1ebfu th\u00f4ng tin c\u00e1 nh\u00e2n xu\u1ea5t hi\u1ec7n tr\u00ean ch\u00fang sau n\u00e0y. Ngo\u00e0i ra, nh\u00e2n vi\u00ean c\u00f3 th\u1ec3 \u0111\u1eb7t c\u1ea5u h\u00ecnh cho c\u00e1c h\u1ed3 s\u01a1 m\u1ea1ng x\u00e3 h\u1ed9i c\u1ee7a h\u1ecd th\u00e0nh ri\u00eang t\u01b0 b\u1eb1ng c\u00e1ch gi\u1edbi h\u1ea1n truy c\u1eadp ch\u1ec9 cho “b\u1ea1n b\u00e8 v\u00e0 gia \u0111\u00ecnh”, t\u1eeb ch\u1ed1i k\u1ebb l\u1eeba \u0111\u1ea3o m\u1ed9t con \u0111\u01b0\u1eddng kh\u00e1c \u0111\u1ec3 thu th\u1eadp th\u00f4ng tin. S\u1eed d\u1ee5ng Social Privacy Manager c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3 d\u1ec5 d\u00e0ng h\u01a1n. Ch\u1ec9 c\u1ea7n v\u00e0i c\u00fa nh\u1ea5p chu\u1ed9t, n\u00f3 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh h\u01a1n 100 c\u00e0i \u0111\u1eb7t ri\u00eang t\u01b0 tr\u00ean c\u00e1c t\u00e0i kho\u1ea3n m\u1ea1ng x\u00e3 h\u1ed9i c\u1ee7a h\u1ecd l\u00e0m cho ch\u00fang tr\u1edf n\u00ean ri\u00eang t\u01b0 h\u01a1n k\u1ebft qu\u1ea3.<\/p>\n","protected":false},"excerpt":{"rendered":"

        Nh\u01b0 t\u00ean g\u1ecdi, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng spear phishing l\u00e0 nh\u1eefng chi\u00eau l\u1eeba \u0111\u1ea3o \u0111\u01b0\u1ee3c nh\u1eafm \u0111\u1ebfn m\u1ed9t c\u00e1ch r\u1ea5t c\u00f3 m\u1ee5c ti\u00eau. Th\u01b0\u1eddng x\u1ea3y ra trong m\u00f4i tr\u01b0\u1eddng chuy\u00ean nghi\u1ec7p, nh\u1eefng k\u1ebb l\u1eeba \u0111\u1ea3o n\u00e0y s\u0103n m\u1ee5c ti\u00eau l\u00e0 nh\u1eefng “con c\u00e1 l\u1edbn”, nh\u01b0 nh\u00e2n vi\u00ean c\u1ea5p cao c\u00f3 quy\u1ec1n truy c\u1eadp v\u00e0o t\u00e0i 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