{"id":904,"date":"2022-09-29T09:56:00","date_gmt":"2022-09-29T02:56:00","guid":{"rendered":"https:\/\/w2.vacif.com\/?p=904"},"modified":"2024-06-24T03:51:30","modified_gmt":"2024-06-24T03:51:30","slug":"ddos-la-gi","status":"publish","type":"post","link":"https:\/\/vacif.com\/en\/ddos-la-gi\/","title":{"rendered":"DDoS l\u00e0 g\u00ec?"},"content":{"rendered":"\n

1.DDoS l\u00e0 g\u00ec?<\/strong><\/h1>\n\n\n\n

DDoS l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb Distributed Denial-of-Service hay T\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 \u2013 M\u1ed9t d\u1ea1ng t\u1ea5n c\u00f4ng l\u00e0m qu\u00e1 t\u1ea3i m\u00e1y ch\u1ee7, l\u00e0m cho ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 truy c\u1eadp website \/ \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u0111\u00edch, nh\u1eafm v\u00e0o c\u00e1c \u1ee9ng d\u1ee5ng\/website c\u1ee7a c\u00f4ng ty ho\u1eb7c \u0111\u1ed1i th\u1ee7 nh\u1eb1m \u0111\u00e1nh s\u1eadp h\u1ec7 th\u1ed1ng ho\u1eb7c b\u00e0y t\u1ecf s\u1ef1 \u0111\u1ed3ng t\u00ecnh v\u1edbi m\u1ed9t c\u00e1 nh\u00e2n, t\u1ed5 ch\u1ee9c n\u00e0o \u0111\u00f3.<\/p>\n\n\n\n

2.DDoS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h1>\n\n\n\n
\"\"<\/figure>\n\n\n\n

M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DDoS) th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e1t \u0111\u1ed9ng sau khi tin t\u1eb7c thu t\u1eadp v\u00e0 t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c m\u1ed9t l\u01b0\u1ee3ng t\u00e0i nguy\u00ean c\u1ea7n thi\u1ebft. Th\u01b0\u1eddng l\u00e0 t\u1eeb c\u00e1c thi\u1ebft b\u1ecb IoT, m\u00e1y t\u00ednh c\u00e1 nh\u00e2n, m\u00e1y ch\u1ee7,\u2026<\/p>\n\n\n\n

Sau khi \u0111\u00e3 t\u1ed5ng h\u1ee3p \u0111\u1ee7 t\u00e0i nguy\u00ean, tin t\u1eb7c s\u1ebd \u0111i\u1ec1u h\u01b0\u1edbng to\u00e0n b\u1ed9 l\u01b0u l\u01b0\u1ee3ng \u0111\u00f3 t\u1edbi m\u00e1y ch\u1ee7 m\u1ee5c ti\u00eau v\u1edbi tu\u1ea7n su\u1ea5t cao, c\u00f9ng v\u1edbi l\u01b0\u1ee3ng truy c\u1eadp s\u1eb5n c\u00f3 c\u1ee7a website\/\u1ee9ng d\u1ee5ng s\u1ebd l\u00e0m qu\u00e1 t\u1ea3i b\u0103ng th\u00f4ng, g\u00e2y m\u1ea5t k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7.<\/p>\n\n\n\n

3.C\u00e1ch nh\u1eadn bi\u1ebft khi b\u1ecb t\u1ea5n c\u00f4ng DDoS?<\/strong><\/h1>\n\n\n\n

DDoS kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u00f3 th\u1ec3 nh\u1eadn ra ngay l\u1eadp t\u1ee9c. Tuy nhi\u00ean b\u1ea1n c\u00f3 th\u1ec3 ch\u00fa \u00fd m\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u nh\u01b0:<\/p>\n\n\n\n

    \n
  • Website \/ \u1ee9ng d\u1ee5ng t\u1ea3i ch\u1eadm, v\u1ee1 giao di\u1ec7n<\/li>\n\n\n\n
  • Kh\u00f4ng th\u1ec3 truy c\u1eadp website m\u1eb7c d\u00f9 c\u00e1c website kh\u00e1c v\u1eabn truy c\u1eadp \u0111\u01b0\u1ee3c<\/li>\n\n\n\n
  • Website \/ \u1ee9ng d\u1ee5ng m\u1ea5t k\u1ebft n\u1ed1i m\u1eb7c d\u00f9 internet c\u1ee7a b\u1ea1n v\u1eabn ho\u1ea1t \u0111\u1ed9ng<\/li>\n\n\n\n
  • Xu\u1ea5t hi\u1ec7n n\u1ed9i dung, h\u00ecnh \u1ea3nh, video b\u1ea5t th\u01b0\u1eddng<\/li>\n\n\n\n
  • Email b\u1ecb spam h\u00e0ng lo\u1ea1t tin r\u00e1c\u2026<\/li>\n<\/ul>\n\n\n\n

    Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o DDoS c\u0169ng c\u00f3 nh\u1eefng d\u1ea5u hi\u1ec7u n\u00e0y, nh\u01b0ng n\u1ebfu b\u1ea1n nh\u1eadn th\u1ea5y c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y xu\u1ea5t hi\u1ec7n l\u00e2u d\u00e0i th\u00ec r\u1ea5t c\u00f3 th\u1ec3 website \/ \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n \u0111ang b\u1ecb DDoS. M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 c\u0169ng c\u00f3 th\u1ec3 k\u00e9o d\u00e0i trong v\u00e0i ti\u1ebfng t\u1edbi v\u00e0i th\u00e1ng tu\u1ef3 v\u00e0o m\u1ee5c \u0111\u00edch v\u00e0 m\u1ee9c \u0111\u1ed9 t\u1ea5n c\u00f4ng c\u1ee7a tin t\u1eb7c.<\/p>\n\n\n\n

    4.C\u00e1c d\u1ea1ng t\u1ea5n c\u00f4ng DDoS ph\u1ed5 bi\u1ebfn?<\/strong><\/h1>\n\n\n\n

    C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1eb1m v\u00e0o b\u1ea5t k\u00ec m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng n\u00e0o bao g\u1ed3m l\u00e0 t\u1ea5n c\u00f4ng v\u00e0o c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ecbnh tuy\u1ebfn, web, th\u01b0 \u0111i\u1ec7n t\u1eed v\u00e0 h\u1ec7 th\u1ed1ng DNS,\u2026<\/p>\n\n\n\n

    Theo th\u1ed1ng k\u00ea th\u00ec c\u00f3 5 c\u00e1ch t\u1ea5n c\u00f4ng DDos c\u01a1 b\u1ea3n:<\/p>\n\n\n\n

      \n
    • Ph\u00e1 v\u1ee1 c\u00e1c th\u00e0nh ph\u1ea7n v\u1eadt l\u00fd c\u1ee7a m\u1ea1ng m\u00e1y t\u00ednh<\/li>\n\n\n\n
    • Ph\u00e1 v\u1ee1 c\u00e1c tr\u1ea1ng th\u00e1i th\u00f4ng tin nh\u01b0 vi\u1ec7c t\u1ef1 \u0111\u1ed9ng reset l\u1ea1i c\u00e1c phi\u00ean TCP<\/li>\n\n\n\n
    • Ph\u00e1 v\u1ee1 c\u00e1c th\u00f4ng tin c\u1ea5u h\u00ecnh nh\u01b0 th\u00f4ng tin \u0111\u1ecbnh tuy\u1ebfn<\/li>\n\n\n\n
    • Nh\u1eb1m ti\u00eau t\u1ed1n t\u00e0i nguy\u00ean t\u00ednh to\u00e1n nh\u01b0 b\u0103ng th\u00f4ng, dung l\u01b0\u1ee3ng \u0111\u0129a c\u1ee9ng ho\u1eb7c th\u1eddi gian x\u1eed l\u00fd<\/li>\n\n\n\n
    • L\u00e0m t\u1eafc ngh\u1ebdn th\u00f4ng tin li\u00ean l\u1ea1c c\u00f3 ch\u1ee7 \u0111\u00edch gi\u1eefa c\u00e1c ng\u01b0\u1eddi d\u00f9ng v\u00e0 n\u1ea1n nh\u00e2n d\u1eabn \u0111\u1ebfn vi\u1ec7c li\u00ean l\u1ea1c gi\u1eefa hai b\u00ean kh\u00f4ng \u0111\u01b0\u1ee3c th\u00f4ng su\u1ed1t.<\/li>\n<\/ul>\n\n\n\n

      Trong \u0111\u00f3, c\u00f3 m\u1ed9t s\u1ed1 cu\u1ed9c t\u1ea5n c\u00f4ng c\u00f2n l\u1ed3ng gh\u00e9p c\u1ea3 vi\u1ec7c th\u1ef1c hi\u1ec7n malware nh\u1eb1m:<\/p>\n\n\n\n

        \n
      • G\u00e2y crash h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n
      • Nh\u1eefng l\u1ed7i c\u00f3 th\u1ec3 khai th\u00e1c \u0111\u01b0\u1ee3c \u1edf h\u1ec7 \u0111i\u1ec1u h\u00e0nh d\u1eabn \u0111\u1ebfn vi\u1ec7c thi\u1ebfu th\u1ed1n t\u00e0i nguy\u00ean ho\u1eb7c b\u1ecb thrashing. VD: nh\u01b0 s\u1eed d\u1ee5ng t\u1ea5t c\u1ea3 c\u00e1c n\u0103ng l\u1ef1c c\u00f3 s\u1eb5n d\u1eabn \u0111\u1ebfn kh\u00f4ng m\u1ed9t c\u00f4ng vi\u1ec7c th\u1ef1c t\u1ebf n\u00e0o c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh \u0111\u01b0\u1ee3c.<\/li>\n\n\n\n
      • Nh\u1eefng l\u1ed7i g\u1ecdi t\u1ee9c th\u00ec trong microcode c\u1ee7a m\u00e1y t\u00ednh.<\/li>\n\n\n\n
      • Nh\u1eefng l\u1ed7i g\u1ecdi t\u1ee9c th\u00ec trong chu\u1ed7i ch\u1ec9 th\u1ecb, d\u1eabn \u0111\u1ebfn m\u00e1y t\u00ednh r\u01a1i v\u00e0o tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c b\u1ecb \u0111\u01a1.<\/li>\n\n\n\n
      • L\u00e0m qu\u00e1 t\u1ea3i n\u0103ng l\u1ef1c x\u1eed l\u00fd, d\u1eabn \u0111\u1ebfn h\u1ec7 th\u1ed1ng kh\u00f4ng th\u1ec3 th\u1ef1c thi b\u1ea5t k\u00ec m\u1ed9t c\u00f4ng vi\u1ec7c n\u00e0o kh\u00e1c.<\/li>\n\n\n\n
      • T\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 iFrame: trong m\u1ed9t trang HTML c\u00f3 th\u1ec3 g\u1ecdi \u0111\u1ebfn m\u1ed9t trang web n\u00e0o \u0111\u00f3 v\u1edbi r\u1ea5t nhi\u1ec1u y\u00eau c\u1ea7u v\u00e0 trong r\u1ea5t nhi\u1ec1u l\u1ea7n cho \u0111\u1ebfn khi b\u0103ng th\u00f4ng c\u1ee7a trang web \u0111\u00f3 b\u1ecb qu\u00e1 h\u1ea1n.<\/li>\n<\/ul>\n\n\n\n

        DDos Attack l\u00e0 vi\u1ec7c t\u1ea1o ra s\u1ef1 truy c\u1eadp c\u1ee7a ng\u01b0\u1eddi v\u00e0o m\u1ed9t website b\u1ea5t k\u00ec l\u01b0\u1ee3ng truy c\u1eadp cao m\u1ed9t c\u00e1ch kh\u00f4ng ch\u1ee7 \u0111\u1ed9ng, ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng h\u1ec1 bi\u1ebft thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh b\u1ecb c\u00e0i \u0111\u1eb7t virus v\u00e0 v\u00f4 t\u00ecnh b\u1ecb l\u1ee3i d\u1ee5ng \u0111\u1ec3 t\u1ea5n c\u00f4ng v\u00e0o m\u1ed9t website n\u00e0o \u0111\u00f3. N\u1ebfu m\u1ed9t ng\u01b0\u1eddi b\u1ecb nhi\u1ec5m virus v\u00e1 t\u1ea5n c\u00f4ng th\u00ec s\u1ebd kh\u00f4ng \u1ea3nh h\u01b0\u1edfng qu\u00e1 nhi\u1ec1u \u0111\u1ebfn website nh\u01b0ng b\u1ea1n h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng r\u1eb1ng, 10.000 ng\u01b0\u1eddi b\u1ecb nhi\u1ec5m virus v\u00e0 c\u00f9ng m\u1ed9t l\u00fac t\u1ea5t c\u1ea3 nh\u1eefng con virus n\u00e0y t\u1ea5n c\u00f4ng v\u00e0o m\u1ed9t website th\u00ec \u0111\u00f3 \u0111\u00fang l\u00e0 m\u1ed9t t\u1ed5n th\u1ea5t c\u1ef1c k\u00ec l\u1edbn \u0111\u1ed1i v\u1edbi m\u1ed9t c\u00e1 nh\u00e2n hay t\u1ed5 ch\u1ee9c n\u00e0o \u0111\u00f3.<\/p>\n","protected":false},"excerpt":{"rendered":"

        1.DDoS l\u00e0 g\u00ec? DDoS l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb Distributed Denial-of-Service hay T\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 \u2013 M\u1ed9t d\u1ea1ng t\u1ea5n c\u00f4ng l\u00e0m qu\u00e1 t\u1ea3i m\u00e1y ch\u1ee7, l\u00e0m cho ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 truy c\u1eadp website \/ \u1ee9ng d\u1ee5ng. M\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng DDoS th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u0111\u00edch, […]<\/p>\n","protected":false},"author":2,"featured_media":9516,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[40,80,17],"tags":[38,39,41,42],"class_list":["post-904","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ddos","category-huong-dan-tai-lieu","category-bao-mat","tag-cac-dang-tan-cong-ddos-pho-bien","tag-cach-nhan-biet-khi-bi-tan-cong-ddos","tag-ddos-hoat-dong-nhu-the-nao","tag-ddos-la-gi","entry","has-media"],"_links":{"self":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts\/904","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/comments?post=904"}],"version-history":[{"count":1,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts\/904\/revisions"}],"predecessor-version":[{"id":10076,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts\/904\/revisions\/10076"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/media\/9516"}],"wp:attachment":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/media?parent=904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/categories?post=904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/tags?post=904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}