{"id":14973,"date":"2025-06-12T12:55:10","date_gmt":"2025-06-12T06:55:10","guid":{"rendered":"https:\/\/dtasiagroup.com\/the-importance-of-triage-in-incident-response\/"},"modified":"2025-07-04T14:58:53","modified_gmt":"2025-07-04T08:58:53","slug":"tam-quan-trong-cua-viec-phan-loai-muc-do-uu-tien-trong-ung-pho-su-co","status":"publish","type":"post","link":"https:\/\/dtasiagroup.com\/vi\/tam-quan-trong-cua-viec-phan-loai-muc-do-uu-tien-trong-ung-pho-su-co\/","title":{"rendered":"T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c ph\u00e2n lo\u1ea1i m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean trong \u1ee9ng ph\u00f3 s\u1ef1 c\u1ed1"},"content":{"rendered":"

\"\"<\/p>\n

N\u1ebfu b\u1ea1n l\u00e0 m\u1ed9t game th\u1ee7 thu\u1ed9c th\u1ebf h\u1ec7 nh\u1ea5t \u0111\u1ecbnh, c\u00f3 l\u1ebd b\u1ea1n v\u1eabn c\u00f2n nh\u1edb t\u1ef1a game kinh \u0111i\u1ec3n trong c\u00e1c m\u00e1y arcade: Asteroids<\/em>. Trong tr\u00f2 ch\u01a1i n\u00e0y, b\u1ea1n \u0111i\u1ec1u khi\u1ec3n m\u1ed9t con t\u00e0u h\u00ecnh tam gi\u00e1c nh\u1ecf, n\u00e9 tr\u00e1nh v\u00e0 b\u1eafn h\u1ea1 nh\u1eefng t\u1ea3ng \u0111\u00e1 kh\u00f4ng gian \u0111ang lao \u0111\u1ebfn\u2014ban \u0111\u1ea7u ch\u1eadm nh\u01b0ng ng\u00e0y c\u00e0ng nhanh h\u01a1n. \u0110\u1ec3 th\u00e0nh c\u00f4ng, b\u1ea1n ph\u1ea3i ra quy\u1ebft \u0111\u1ecbnh th\u1eadt nhanh: x\u00e1c \u0111\u1ecbnh \u0111\u00e2u l\u00e0 m\u1ed1i \u0111e d\u1ecda th\u1ef1c s\u1ef1 v\u00e0 \u0111\u00e2u l\u00e0 nh\u1eefng t\u1ea3ng \u0111\u00e1 c\u00f3 th\u1ec3 t\u1ea1m th\u1eddi b\u1ecf qua.<\/p>\n

Vi\u1ec7c ph\u00e2n lo\u1ea1i trong an ninh m\u1ea1ng c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady.\u00a0Khi c\u00e1c m\u1ed1i \u0111e d\u1ecda li\u00ean t\u1ee5c \u1eadp \u0111\u1ebfn t\u1eeb \u0111\u1ee7 m\u1ecdi h\u01b0\u1edbng, b\u1ea1n c\u1ea7n m\u1ed9t quy tr\u00ecnh r\u00f5 r\u00e0ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u00e2u l\u00e0 s\u1ef1 c\u1ed1 c\u1ea7n ph\u1ea3n \u1ee9ng ngay v\u00e0 \u0111\u00e2u l\u00e0 vi\u1ec7c c\u00f3 th\u1ec3 x\u1eed l\u00fd sau. Kh\u00f4ng ph\u1ea3i c\u1ea3nh b\u00e1o n\u00e0o c\u0169ng l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a th\u1ea3m h\u1ecda. N\u1ebfu thi\u1ebfu b\u01b0\u1edbc ph\u00e2n lo\u1ea1i hi\u1ec7u qu\u1ea3, \u0111\u1ed9i ng\u0169 an ninh s\u1ebd nhanh ch\u00f3ng b\u1ecb nh\u1ea5n ch\u00ecm trong “bi\u1ec3n c\u1ea3nh b\u00e1o” \u2013 m\u1ea5t th\u1eddi gian v\u00e0o nh\u1eefng v\u1ea5n \u0111\u1ec1 kh\u00f4ng quan tr\u1ecdng v\u00e0 c\u00f3 nguy c\u01a1 b\u1ecf s\u00f3t c\u00e1c m\u1ed1i \u0111e d\u1ecda th\u1ef1c s\u1ef1.<\/p>\n

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Triage trong an ninh m\u1ea1ng l\u00e0 g\u00ec?<\/h2>\n

Trong l\u0129nh v\u1ef1c an ninh m\u1ea1ng, triage<\/em> (ph\u00e2n lo\u1ea1i s\u1ef1 c\u1ed1) l\u00e0 qu\u00e1 tr\u00ecnh \u0111\u00e1nh gi\u00e1 v\u00e0 s\u1eafp x\u1ebfp m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean c\u1ee7a c\u00e1c s\u1ef1 c\u1ed1 b\u1ea3o m\u1eadt d\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng v\u00e0 t\u00ednh c\u1ea5p b\u00e1ch. Quy tr\u00ecnh n\u00e0y gi\u00fap c\u00e1c trung t\u00e2m v\u1eadn h\u00e0nh an ninh (SOC) ph\u1ea3n \u1ee9ng nhanh h\u01a1n, hi\u1ec7u qu\u1ea3 h\u01a1n b\u1eb1ng c\u00e1ch t\u1eadp trung ngu\u1ed3n l\u1ef1c v\u00e0o nh\u1eefng v\u1ea5n \u0111\u1ec1 th\u1ef1c s\u1ef1 quan tr\u1ecdng.<\/p>\n

Quy tr\u00ecnh ph\u00e2n lo\u1ea1i triage th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n

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  1. \n

    \u0110\u00e1nh gi\u00e1 ban \u0111\u1ea7u<\/strong> \u2013 Xem x\u00e9t nhanh c\u1ea3nh b\u00e1o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng, t\u00e1c \u0111\u1ed9ng ti\u1ec1m t\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng s\u1ef1 c\u1ed1 leo thang.<\/p>\n<\/li>\n

  2. \n

    Li\u00ean k\u1ebft v\u1edbi d\u1eef li\u1ec7u t\u00ecnh b\u00e1o m\u1ed1i \u0111e d\u1ecda<\/strong> \u2013 So s\u00e1nh s\u1ef1 c\u1ed1 v\u1edbi c\u00e1c d\u1eef li\u1ec7u \u0111e d\u1ecda \u0111\u00e3 bi\u1ebft \u0111\u1ec3 x\u00e1c minh t\u00ednh li\u00ean quan.<\/p>\n<\/li>\n

  3. \n

    \u01afu ti\u00ean d\u1ef1a tr\u00ean ti\u00eau ch\u00ed<\/strong> \u2013 S\u1eed d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n \u0111\u00e3 thi\u1ebft l\u1eadp \u0111\u1ec3 ph\u00e2n lo\u1ea1i s\u1ef1 c\u1ed1 v\u00e0 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean x\u1eed l\u00fd.<\/p>\n<\/li>\n<\/ol>\n

    C\u00e1c m\u1ee9c \u01b0u ti\u00ean ph\u1ed5 bi\u1ebfn:<\/h3>\n
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      Cao<\/strong> \u2013 C\u1ea7n ph\u1ea3n \u1ee9ng ngay l\u1eadp t\u1ee9c.<\/p>\n<\/li>\n

    • \n

      Trung b\u00ecnh<\/strong> \u2013 C\u1ea7n x\u1eed l\u00fd trong v\u00f2ng 24 gi\u1edd.<\/p>\n<\/li>\n

    • \n

      Th\u1ea5p<\/strong> \u2013 Theo d\u00f5i, ch\u01b0a c\u1ea7n h\u00e0nh \u0111\u1ed9ng g\u1ea5p.<\/p>\n<\/li>\n<\/ul>\n

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      ProcessTriage \u0111\u00f3ng vai tr\u00f2 g\u00ec trong quy tr\u00ecnh \u1ee9ng ph\u00f3 s\u1ef1 c\u1ed1?<\/h2>\n

      Triage<\/em> kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 vi\u1ec7c l\u1ecdc b\u1ecf \u201cnhi\u1ec5u\u201d \u2013 n\u00f3 l\u00e0 n\u1ec1n t\u1ea3ng cho m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c \u1ee9ng ph\u00f3 s\u1ef1 c\u1ed1 (IR) hi\u1ec7u qu\u1ea3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch quy tr\u00ecnh n\u00e0y ho\u1ea1t \u0111\u1ed9ng trong th\u1ef1c t\u1ebf:<\/p>\n

      1. Ph\u00e1t hi\u1ec7n v\u00e0 B\u00e1o c\u00e1o<\/h3>\n

      H\u1ec7 th\u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t li\u00ean t\u1ee5c \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c h\u00e0nh vi b\u1ea5t th\u01b0\u1eddng v\u00e0 t\u1ea1o b\u00e1o c\u00e1o s\u1ef1 c\u1ed1 ban \u0111\u1ea7u. M\u1ed9t chi\u1ebfn l\u01b0\u1ee3c ph\u00e1t hi\u1ec7n t\u1ed1t s\u1ebd gi\u00fap nh\u1eadn di\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng v\u00e0 x\u00e1c \u0111\u1ecbnh t\u00e0i s\u1ea3n n\u00e0o c\u00f3 th\u1ec3 \u0111\u00e3 b\u1ecb x\u00e2m ph\u1ea1m.<\/p>\n

      2. \u0110\u00e1nh gi\u00e1 v\u00e0 Ph\u00e2n lo\u1ea1i<\/h3>\n

      C\u00e1c s\u1ef1 c\u1ed1 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 d\u1ef1a tr\u00ean:<\/p>\n

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        T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ch\u1ee9c n\u0103ng<\/strong> (Functional Impact<\/em>) \u2013 D\u1ecbch v\u1ee5 quan tr\u1ecdng b\u1ecb \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n<\/li>\n

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        T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn th\u00f4ng tin<\/strong> (Information Impact<\/em>) \u2013 M\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh b\u1ea3o m\u1eadt, to\u00e0n v\u1eb9n v\u00e0 kh\u1ea3 d\u1ee5ng c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n<\/li>\n

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        Kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i<\/strong> (Recoverability<\/em>) \u2013 Th\u1eddi gian v\u00e0 ngu\u1ed3n l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u1ee5c h\u1ed3i ho\u00e0n to\u00e0n sau s\u1ef1 c\u1ed1.<\/p>\n<\/li>\n<\/ul>\n

        C\u00e1c c\u1ea5p \u0111\u1ed9 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ch\u1ee9c n\u0103ng:<\/strong><\/p>\n

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          Kh\u00f4ng c\u00f3<\/strong> \u2013 T\u1ea5t c\u1ea3 d\u1ecbch v\u1ee5 v\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n<\/li>\n

        • \n

          Th\u1ea5p<\/strong> \u2013 D\u1ecbch v\u1ee5 quan tr\u1ecdng v\u1eabn ho\u1ea1t \u0111\u1ed9ng nh\u01b0ng k\u00e9m hi\u1ec7u qu\u1ea3.<\/p>\n<\/li>\n

        • \n

          Trung b\u00ecnh<\/strong> \u2013 M\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng m\u1ea5t quy\u1ec1n truy c\u1eadp v\u00e0o d\u1ecbch v\u1ee5 quan tr\u1ecdng.<\/p>\n<\/li>\n

        • \n

          Cao<\/strong> \u2013 T\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec1u m\u1ea5t quy\u1ec1n truy c\u1eadp v\u00e0o d\u1ecbch v\u1ee5 quan tr\u1ecdng.<\/p>\n<\/li>\n<\/ul>\n

          3. \u01afu ti\u00ean x\u1eed l\u00fd s\u1ef1 c\u1ed1<\/h3>\n

          D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 t\u00e1c \u0111\u1ed9ng v\u00e0 t\u00ednh nghi\u00eam tr\u1ecdng, s\u1ef1 c\u1ed1 \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean. Vi\u1ec7c ph\u00e2n lo\u1ea1i \u0111\u00fang gi\u00fap \u0111\u1ed9i ng\u0169 an ninh t\u1eadp trung v\u00e0o c\u00e1c m\u1ed1i \u0111e d\u1ecda th\u1ef1c s\u1ef1, gi\u1ea3m b\u1edbt t\u00ecnh tr\u1ea1ng “qu\u00e1 t\u1ea3i c\u1ea3nh b\u00e1o” (alert fatigue<\/em>) \u2013 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n khi\u1ebfn s\u1ef1 c\u1ed1 nghi\u00eam tr\u1ecdng b\u1ecb b\u1ecf s\u00f3t.<\/p>\n

          4. Ph\u00e2n b\u1ed5 ngu\u1ed3n l\u1ef1c<\/h3>\n

          D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a s\u1ef1 c\u1ed1, \u0111\u1ed9i ng\u0169 ph\u1ee5 tr\u00e1ch s\u1ebd \u0111\u01b0\u1ee3c ph\u00e2n c\u00f4ng ph\u00f9 h\u1ee3p. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o nh\u1eefng m\u1ed1i \u0111e d\u1ecda nghi\u00eam tr\u1ecdng nh\u1ea5t \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi nh\u1eefng ng\u01b0\u1eddi c\u00f3 chuy\u00ean m\u00f4n cao nh\u1ea5t.<\/p>\n

          5. \u0110i\u1ec1u tra s\u1ef1 c\u1ed1<\/h3>\n

          B\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 b\u1eb1ng c\u00e1ch thu th\u1eadp c\u00e1c ch\u1ec9 d\u1ea5u x\u00e2m nh\u1eadp (Indicators of Compromise \u2013 IoCs<\/em>), bao g\u1ed3m:<\/p>\n

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            \u0110\u1ecba ch\u1ec9 IP<\/p>\n<\/li>\n

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            T\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng<\/p>\n<\/li>\n

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            T\u00ean m\u00e1y ch\u1ee7 (hostname)<\/p>\n<\/li>\n

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            L\u01b0u l\u01b0\u1ee3ng m\u1ea1ng<\/p>\n<\/li>\n<\/ul>\n

            6. Giao ti\u1ebfp v\u00e0 Ph\u1ed1i h\u1ee3p<\/h3>\n

            \u1ee8ng ph\u00f3 s\u1ef1 c\u1ed1 l\u00e0 c\u00f4ng vi\u1ec7c \u0111\u00f2i h\u1ecfi s\u1ef1 h\u1ee3p t\u00e1c li\u00ean ph\u00f2ng ban. C\u00e1c nh\u00f3m an ninh, CNTT v\u00e0 v\u1eadn h\u00e0nh kinh doanh c\u1ea7n ph\u1ed1i h\u1ee3p ch\u1eb7t ch\u1ebd, chia s\u1ebb th\u00f4ng tin theo th\u1eddi gian th\u1ef1c v\u00e0 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 chung \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u1ea3n \u1ee9ng \u0111\u1ed3ng b\u1ed9.<\/p>\n

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            Th\u00e1ch th\u1ee9c trong vi\u1ec7c ph\u00e2n lo\u1ea1i c\u1ea3nh b\u00e1o<\/h2>\n

            Ngay c\u1ea3 v\u1edbi m\u1ed9t quy tr\u00ecnh ph\u00e2n lo\u1ea1i b\u00e0i b\u1ea3n, triage v\u1eabn kh\u00f4ng ph\u1ea3i l\u00e0 nhi\u1ec7m v\u1ee5 d\u1ec5 d\u00e0ng. C\u00e1c \u0111\u1ed9i ng\u0169 an ninh th\u01b0\u1eddng g\u1eb7p ph\u1ea3i nhi\u1ec1u v\u1ea5n \u0111\u1ec1 nh\u01b0:<\/p>\n

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              C\u1ea3nh b\u00e1o sai (False Positives)<\/strong> \u2013 Nh\u1eefng c\u1ea3nh b\u00e1o kh\u00f4ng ph\u1ea3n \u00e1nh s\u1ef1 c\u1ed1 th\u1ef1c t\u1ebf<\/p>\n<\/li>\n

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              Qu\u00e1 t\u1ea3i c\u1ea3nh b\u00e1o (Alert Fatigue)<\/strong> \u2013 Khi ph\u1ea3i x\u1eed l\u00fd qu\u00e1 nhi\u1ec1u c\u1ea3nh b\u00e1o kh\u00f4ng quan tr\u1ecdng, c\u00e1c m\u1ed1i \u0111e d\u1ecda th\u1ef1c s\u1ef1 d\u1ec5 b\u1ecb b\u1ecf s\u00f3t.<\/p>\n<\/li>\n

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              L\u1ed7i con ng\u01b0\u1eddi<\/strong> \u2013 Vi\u1ec7c ph\u00e2n lo\u1ea1i th\u1ee7 c\u00f4ng lu\u00f4n ti\u1ec1m \u1ea9n nguy c\u01a1 sai s\u00f3t.<\/p>\n<\/li>\n

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              M\u00f4 h\u00ecnh AI\/ML ch\u01b0a tr\u01b0\u1edfng th\u00e0nh<\/strong> \u2013 C\u00e1c m\u00f4 h\u00ecnh tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o ho\u1eb7c h\u1ecdc m\u00e1y ch\u01b0a \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n t\u1ed1t c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i sai ho\u1eb7c t\u1ea1o ra th\u00eam nhi\u1ec5u.<\/p>\n<\/li>\n<\/ul>\n

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              L\u1ee3i \u00edch c\u1ee7a quy tr\u00ecnh triage hi\u1ec7u qu\u1ea3<\/h2>\n

              M\u1ed9t quy tr\u00ecnh triage \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang c\u00e1ch s\u1ebd mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch r\u00f5 r\u00e0ng:<\/p>\n