{"id":119,"date":"2012-11-28T11:56:35","date_gmt":"2012-11-28T16:56:35","guid":{"rendered":"http:\/\/nccomputertech.wordpress.com\/?p=119"},"modified":"2012-11-28T11:56:35","modified_gmt":"2012-11-28T16:56:35","slug":"new-linux-rootkit-injects-malicious-html-into-web-servers","status":"publish","type":"post","link":"https:\/\/nccomputertech.com\/techtalk\/2012\/11\/28\/new-linux-rootkit-injects-malicious-html-into-web-servers\/","title":{"rendered":"New Linux rootkit injects malicious HTML into Web servers"},"content":{"rendered":"<p>A newly discovered form of malware that targets Linux servers acting as Web servers allows an attacker to directly inject code into any page on infected servers\u2014including error pages. The rootkit, which was first publicly discussed on the Full Disclosure security e-mail list on November 13, appears to be crafted for servers running the 64-bit version of Debian Squeeze and NGINX.<br \/>\nAn analysis of the rootkit by Kaspersky Labs found that the malware inserts HTML iframe elements into every page served up to Web browsers connecting to the server. It does this by replacing the code that builds TCP\/IP packets (tcp_sendmsg) with its own code. The malware then retrieves the code to be inserted into the iframe by connecting, botnet-like, to a command and control network with an encrypted password.<br \/>\nThe rootkit, designated as Rootkit.Linux.Snakso.a by Kaspersky, is a new approach to drive-by downloads. They usually are based on PHP script\u2014not code injected into the kernel of the operating system. Because the new rootkit infects the entire server and not just a specific page, the malware could affect dozens or even hundreds of websites at a time if it infects the server of a Web hosting provider.<br \/>\nAccording to Georg Wicherski, senior security researcher at Crowdstrike, the rootkit is most likely the work of a Russian hacker\u2014and not necessarily a very skilled one. &#8220;It seems that this is contract work of an intermediate programmer with no extensive kernel experience,&#8221; Wicherski said in a blog post. But he said that the approach used &#8220;seems to be the next step in iframe-injecting cyber crime operations, driving traffic to exploit kits. It could also be used in a Waterhole attack to conduct a targeted attack against a specific target audience without leaving much forensic trail.&#8221;<br \/>\nvia <a href=\"http:\/\/arstechnica.com\/security\/2012\/11\/new-linux-rootkit-exploits-web-servers-to-attack-visitors\/\" target=\"_blank\">New Linux rootkit injects malicious HTML into Web servers | Ars Technica<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A newly discovered form of malware that targets Linux servers acting as Web servers allows an attacker to directly inject [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[6,7,10],"tags":[620,916],"class_list":["post-119","post","type-post","status-publish","format-standard","hentry","category-networking","category-security","category-technology","tag-linux-2","tag-rootkit"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/papNkV-1V","jetpack-related-posts":[{"id":9930,"url":"https:\/\/nccomputertech.com\/techtalk\/2025\/05\/16\/fbi-says-toss-your-old-router\/","url_meta":{"origin":119,"position":0},"title":"FBI Says Toss Your Old Router","author":"NCCT","date":"May 16, 2025","format":false,"excerpt":"https:\/\/youtu.be\/scR199zRjvA On Security Now, Steve talks about the FBI's suggestion that we should be tossing out our old routers.","rel":"","context":"In &quot;Security&quot;","block_context":{"text":"Security","link":"https:\/\/nccomputertech.com\/techtalk\/category\/security\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/scR199zRjvA\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9655,"url":"https:\/\/nccomputertech.com\/techtalk\/2021\/03\/09\/fuquay-varina-and-holly-springs-computer-repair\/","url_meta":{"origin":119,"position":1},"title":"Fuquay Varina and Holly Springs Computer Repair","author":"NCCT","date":"March 9, 2021","format":false,"excerpt":"Welcome to our blog. NC Computer Tech services Fuquay Varina, Holly Springs, and surrounding NC areas. We offer prompt, professional, courteous service with over twenty years of experience dealing with residential and small business clients offering them solutions and fixing their computer and network issues at reasonable rates. Our services\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/nccomputertech.com\/techtalk\/category\/technology\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9477,"url":"https:\/\/nccomputertech.com\/techtalk\/2018\/12\/16\/the-big-leek-cabal-this-week-in-tech-697\/","url_meta":{"origin":119,"position":2},"title":"The Big Leek Cabal &#8211; This Week in Tech 697","author":"NCCT","date":"December 16, 2018","format":false,"excerpt":"https:\/\/youtu.be\/4JZfm6VIBfc - Elon Musk is a terrible person to work for. - The internet is a garbage fire of hate. - It is not Google's fault that searching for \"idiot\" results in pictures of Donald Trump. - The Chinese are not spying on you with secret spy chips on Super\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/nccomputertech.com\/techtalk\/category\/technology\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/4JZfm6VIBfc\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9330,"url":"https:\/\/nccomputertech.com\/techtalk\/2018\/04\/03\/security-now-657-protonmail\/","url_meta":{"origin":119,"position":3},"title":"Security Now 657: ProtonMail","author":"NCCT","date":"April 3, 2018","format":false,"excerpt":"https:\/\/youtu.be\/OeSZg-ph3Ns This week we discuss \"DrupalGeddon2\", Cloudflare's new DNS offering, a reminder about GRC's DNS Benchmark, Microsoft's Meltdown meltdown, the persistent iOS QR Code flaw and its long-awaited v11.3 update, another VPN user IP leak, more bug bounty news, an ill-fated-seeming new eMail initiative, Free electricity, a policy change at\u2026","rel":"","context":"In &quot;Security&quot;","block_context":{"text":"Security","link":"https:\/\/nccomputertech.com\/techtalk\/category\/security\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/OeSZg-ph3Ns\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9428,"url":"https:\/\/nccomputertech.com\/techtalk\/2018\/10\/28\/all-the-presidents-phones-this-week-in-tech-690\/","url_meta":{"origin":119,"position":4},"title":"All the President&#8217;s Phones &#8211; This Week in Tech 690","author":"NCCT","date":"October 28, 2018","format":false,"excerpt":"https:\/\/youtu.be\/pmfcU05twvo IBM buys Red Hat, worst Windows 10 ever, Right to Repair wins, and more. -- What's in store for Apple's big event this Tuesday? -- Tim Cook vs the \"data industrial complex\" -- Amazon's government controversies -- IBM buys Red Hat for $34 billion - the largest software purchase\u2026","rel":"","context":"In &quot;Apple&quot;","block_context":{"text":"Apple","link":"https:\/\/nccomputertech.com\/techtalk\/category\/apple\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/pmfcU05twvo\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9450,"url":"https:\/\/nccomputertech.com\/techtalk\/2018\/11\/20\/are-passwords-immortal-security-now-690\/","url_meta":{"origin":119,"position":5},"title":"Are Passwords Immortal? &#8211; Security Now 690","author":"NCCT","date":"November 20, 2018","format":false,"excerpt":"https:\/\/youtu.be\/mOSTtkK7vy0 Pwn2Own, the Future of Passwords. -- All the action at last week's Pwn2Own Mobile hacking contest -- The final word on processor mis-design in the Meltdown\/Spectre era -- A workable solution for unsupported Intel firmware upgrades for hostile environments -- A forthcoming Firefox breach alert feature -- The expected\u2026","rel":"","context":"In &quot;Security&quot;","block_context":{"text":"Security","link":"https:\/\/nccomputertech.com\/techtalk\/category\/security\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/mOSTtkK7vy0\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/posts\/119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/comments?post=119"}],"version-history":[{"count":0,"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/posts\/119\/revisions"}],"wp:attachment":[{"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/media?parent=119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/categories?post=119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nccomputertech.com\/techtalk\/wp-json\/wp\/v2\/tags?post=119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}