{"id":9836,"date":"2019-11-15T17:18:04","date_gmt":"2019-11-15T10:18:04","guid":{"rendered":""},"modified":"2024-06-20T17:07:01","modified_gmt":"2024-06-20T10:07:01","slug":"smurf-attack-la-gi-tan-cong-ddos-bang-phuong-thuc-internet-control-message-protocol","status":"publish","type":"post","link":"https:\/\/vnso.vn\/en\/smurf-attack-la-gi-tan-cong-ddos-bang-phuong-thuc-internet-control-message-protocol\/","title":{"rendered":"Smurf attack l\u00e0 g\u00ec? T\u1ea5n c\u00f4ng DDoS b\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c Internet Control Message Protocol"},"content":{"rendered":"

1. Smurf attack l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n

Smurf attack l\u00e0 d\u1ea1ng t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DDOS). K\u1ebb t\u1ea5n c\u00f4ng c\u1ed1 g\u1eafng t\u1ea5n c\u00f4ng \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ee7a n\u1ea1n nh\u00e2n b\u1eb1ng g\u00f3i tin Internet Control Message Protocol. B\u1eb1ng c\u00e1ch g\u1eedi y\u00eau c\u1ea7u b\u1eb1ng IP gi\u1ea3 m\u1ea1o m\u00e1y ch\u1ee7 c\u1ee7a n\u1ea1n nh\u00e2n. \u0110\u1ed3ng th\u1eddi g\u1eedi g\u00f3i tin \u0111\u1ebfn m\u1ed9t ho\u1eb7c nhi\u1ec1u m\u00e1y t\u00ednh trong c\u00f9ng m\u1ea1ng. C\u00e1c m\u00e1y n\u00e0y sau khi nh\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u s\u1ebd ph\u1ea3n h\u1ed3i l\u1ea1i g\u00f3i tin tr\u1ea3 l\u1eddi \u0111\u1ebfn m\u00e1y n\u1ea1n nh\u00e2n. Khu\u1ebfch \u0111\u1ea1i cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y l\u00ean s\u1ebd l\u00e0m cho m\u00e1y ch\u1ee7<\/a> qu\u00e1 t\u1ea3i v\u00e0 d\u1eabn \u0111\u1ebfn t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5. Tuy nhi\u00ean t\u1ea5n c\u00f4ng theo d\u1ea1ng n\u00e0y \u0111\u00e3 t\u1eebng \u0111\u01b0\u1ee3c coi l\u00e0 l\u1ed7 h\u1ed5ng tr\u00ean c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh. Hi\u1ec7n t\u1ea1i n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt c\u00e1c b\u1ea3n v\u00e1 ph\u01b0\u01a1ng th\u1ee9c t\u1ea5n c\u00f4ng n\u00e0y kh\u00f4ng c\u00f2n d\u00f9ng ph\u1ed5 bi\u1ebfn n\u1eefa.<\/span><\/p>\n

\"Smurf-Attack-thue-may-chu\"<\/p>\n

2. Smurf attack ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/span><\/h2>\n

G\u00f3i tin ICMP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong cu\u1ed9c t\u1ea5n c\u00f4ng n\u00e0y th\u00f4ng th\u01b0\u1eddng. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u1ee5c v\u1ee5 vi\u1ec7c c\u00f4ng vi\u1ec7c qu\u1ea3n tr\u1ecb m\u1ea1ng. \u1ee8ng d\u1ee5ng ping s\u1eed d\u1ee5ng c\u00e1c g\u00f3i ICMP s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 m\u00e1y t\u00ednh, m\u00e1y in, v.v. Ping \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra xem thi\u1ebft b\u1ecb c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh hay kh\u00f4ng. Th\u1eddi gian g\u00f3i tin ICMP \u0111i \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111\u00edch v\u00e0 tr\u1edd v\u1ec1 l\u1ea1i l\u00e0 bao nhi\u00eau. Tuy nhi\u00ean giao th\u1ee9c ICMP kh\u00f4ng gi\u1ed1ng v\u1edbi giao th\u1ee9c TCP. N\u00f3 kh\u00f4ng c\u00f3 c\u00e1c b\u01b0\u1edbc b\u1eaft tay \u0111\u1ec3 x\u00e1c nh\u00e2n r\u1eb1ng c\u00e1c g\u00f3i tin n\u00e0y l\u00e0 h\u1ee3p l\u1ec7.<\/span><\/p>\n

\u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c v\u00ed nh\u01b0 c\u00f3 m\u1ed9t k\u1ebb ch\u01a1i kh\u0103m gi\u1ea3 l\u00e0 m\u1ed9t gi\u00e1m \u0111\u1ed1c \u0111i\u1ec1u h\u00e0nh c\u1ee7a c\u00f4ng ty. Ng\u01b0\u1eddi n\u00e0y g\u1ecdi cho ch\u1ee7 qu\u1ea3n c\u1ee7a c\u00f4ng ty \u0111\u00f3 n\u00f3i v\u1edbi qu\u1ea3n l\u00fd r\u1eb1ng nh\u1eafn nh\u00e2n vi\u00ean trong ph\u00f2ng r\u1eb1ng g\u1ecdi \u0111\u1ebfn s\u1ed1 \u0111i\u1ec7n tho\u1ea1i ri\u00eang c\u1ee7a h\u1eafn ta v\u00e0 th\u00f4ng b\u00e1o t\u00ecnh h\u00ecnh c\u00f4ng vi\u1ec7c. H\u1eafn ta \u0111\u01b0a s\u1ed1 c\u1ee7a n\u1ea1n nh\u00e2n cho ng\u01b0\u1eddi qu\u1ea3n l\u00fd v\u00e0 k\u1ebft qu\u1ea3 l\u00e0 n\u1ea1n nh\u00e2n nh\u1eadn \u0111\u01b0\u1ee3c nh\u1eefng cu\u1ed9c g\u1ecdi kh\u00f4ng mong mu\u1ed1n.<\/span><\/p>\n

C\u00e1ch smurf attack ho\u1ea1t \u0111\u1ed9ng:<\/strong><\/span><\/p>\n

    \n
  1. \u0110\u1ea7u ti\u00ean smurf malware t\u1ea1o ra m\u1ed9t g\u00f3i tin m\u00e0 \u0111\u1ecba ch\u1ec9 ngu\u1ed3n l\u00e0 \u0111\u1ecba ch\u1ec9 c\u1ee7a m\u00e1y n\u1ea1n nh\u00e2n.<\/span><\/li>\n
  2. G\u00f3i tin \u0111\u01b0\u1ee3c g\u1eedi broadcast \u0111\u1ebfn router ho\u1eb7c firewall. Router\/firewall s\u1ebd g\u1eedi ti\u1ebfp g\u00f3i broadcast n\u00e0y \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y trong v\u00f9ng broadcast \u0111\u1ec3 t\u0103ng s\u1ed1 l\u01b0\u1ee3ng m\u00e1y nh\u1eadn \u0111\u01b0\u1ee3c request.<\/span><\/li>\n
  3. M\u1ed7i thi\u1ebft b\u1ecb nh\u1eadn \u0111\u01b0\u1ee3c g\u00f3i tin s\u1ebd g\u1eedi ph\u1ea3n h\u1ed3i v\u1ec1 \u0111\u1ecba ch\u1ec9 ngu\u1ed3n c\u1ee7a g\u00f3i tin. \u0110\u1ecba ch\u1ec9 n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c gi\u1ea3 m\u1ea1o th\u00e0nh \u0111\u1ecba ch\u1ec9 c\u1ee7a m\u00e1y n\u1ea1n nh\u00e2n.<\/span><\/li>\n
  4. N\u1ea1n nh\u00e2n nh\u1eadn \u0111\u01b0\u1ee3c g\u00f3i tin ICMP Echo Reply v\u1edbi s\u1ed1 l\u01b0\u1ee3ng qu\u00e1 l\u1edbn. \u0110\u1ed3ng th\u1eddi c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1ebft t\u00e0i nguy\u00ean v\u00e0 t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5.<\/span><\/li>\n<\/ol>\n

    3. Smurf attack \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/span><\/h2>\n

    C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y kh\u00f4ng c\u00f2n hi\u1ec7u qu\u1ea3 v\u00e0 d\u00f9ng ph\u1ed5 bi\u1ebfn n\u1eefa. Tuy nhi\u00ean v\u1eabn c\u00f3 c\u00e1c h\u1ec7 th\u1ed1ng c\u0169 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb qu\u00e1 c\u0169 v\u00e0 kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt n\u1eefa. \u0110\u1ed3ng ngh\u0129a s\u1ebd c\u00f3 kh\u1ea3 n\u0103ng l\u00e0 n\u1ea1n nh\u00e2n c\u1ee7a c\u00e1c v\u1ee5 t\u1ea5n c\u00f4ng b\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c n\u00e0y. \u0110\u1ec3 gi\u1ea3i quy\u1ebft t\u1ea5n c\u00f4ng v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng n\u00e0y l\u00e0 t\u1eaft \u0111\u1ecba ch\u1ec9 IP Broadcasting tr\u00ean m\u1ed7i router\/firewall trong h\u1ec7 th\u1ed1ng m\u1ea1ng. C\u00e1c router\/firewall c\u0169 th\u00f4ng th\u01b0\u1eddng m\u1eb7c \u0111\u1ecbnh s\u1ebd b\u1eadt IP broadcast. Trong khi c\u00e1c router\/firewall m\u1edbi th\u00f4ng th\u01b0\u1eddng s\u1ebd t\u1eaft.<\/span><\/p>\n

    \"thue<\/a><\/p>","protected":false},"excerpt":{"rendered":"

    1. Smurf attack l\u00e0 g\u00ec? Smurf attack l\u00e0 d\u1ea1ng t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DDOS). K\u1ebb t\u1ea5n c\u00f4ng c\u1ed1 g\u1eafng t\u1ea5n c\u00f4ng \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ee7a n\u1ea1n nh\u00e2n b\u1eb1ng g\u00f3i tin Internet Control Message Protocol. B\u1eb1ng c\u00e1ch g\u1eedi y\u00eau c\u1ea7u b\u1eb1ng IP gi\u1ea3 m\u1ea1o m\u00e1y ch\u1ee7 c\u1ee7a n\u1ea1n nh\u00e2n. \u0110\u1ed3ng th\u1eddi g\u1eedi g\u00f3i tin […]<\/p>","protected":false},"author":1,"featured_media":11370,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[156],"tags":[154,94,122],"yoast_head":"\nSmurf attack l\u00e0 g\u00ec? T\u1ea5n c\u00f4ng DDoS b\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c Internet Control Message Protocol<\/title>\n<meta name=\"description\" content=\"Smurf attack l\u00e0 d\u1ea1ng t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DDOS). K\u1ebb t\u1ea5n c\u00f4ng c\u1ed1 g\u1eafng t\u1ea5n c\u00f4ng \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ee7a n\u1ea1n nh\u00e2n b\u1eb1ng g\u00f3i tin (ICPM)\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vnso.vn\/en\/smurf-attack-la-gi-tan-cong-ddos-bang-phuong-thuc-internet-control-message-protocol\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Smurf attack l\u00e0 g\u00ec? T\u1ea5n c\u00f4ng DDoS b\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c Internet Control Message Protocol\" \/>\n<meta property=\"og:description\" content=\"Smurf attack l\u00e0 d\u1ea1ng t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DDOS). K\u1ebb t\u1ea5n c\u00f4ng c\u1ed1 g\u1eafng t\u1ea5n c\u00f4ng \u0111\u1ebfn m\u00e1y ch\u1ee7 c\u1ee7a n\u1ea1n nh\u00e2n b\u1eb1ng g\u00f3i tin (ICPM)\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vnso.vn\/en\/smurf-attack-la-gi-tan-cong-ddos-bang-phuong-thuc-internet-control-message-protocol\/\" \/>\n<meta property=\"og:site_name\" content=\"C\u00d4NG NGH\u1ec6 VNSO\u2122\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/VNSO.VN\" \/>\n<meta property=\"article:published_time\" content=\"2019-11-15T10:18:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-06-20T10:07:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/vnso.vn\/wp-content\/uploads\/2019\/11\/Smurf-Attack.png\" \/>\n\t<meta property=\"og:image:width\" content=\"919\" \/>\n\t<meta property=\"og:image:height\" content=\"460\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"quocvu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"quocvu\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/vnso.vn\/smurf-attack-la-gi-tan-cong-ddos-bang-phuong-thuc-internet-control-message-protocol\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/vnso.vn\/smurf-attack-la-gi-tan-cong-ddos-bang-phuong-thuc-internet-control-message-protocol\/\"},\"author\":{\"name\":\"quocvu\",\"@id\":\"https:\/\/vnso.vn\/#\/schema\/person\/d2e01da61bbe4e9cdad491a13585c000\"},\"headline\":\"Smurf attack l\u00e0 g\u00ec? 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