{"id":34457,"date":"2020-04-17T04:20:04","date_gmt":"2020-04-17T04:20:04","guid":{"rendered":"http:\/\/f57123c4-2db1-4d35-85b5-7c20d587f2bc"},"modified":"2020-04-17T04:20:04","modified_gmt":"2020-04-17T04:20:04","slug":"academics-steal-data-from-air-gapped-systems-using-pc-fan-vibrations","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/academics-steal-data-from-air-gapped-systems-using-pc-fan-vibrations\/","title":{"rendered":"Academics steal data from air-gapped systems using PC fan vibrations"},"content":{"rendered":"<section class=\"shortcode media-source\">\n<p><iframe width=\"500\" height=\"282\" frameborder=\"0\" allowfullscreen=\"true\" title=\"YouTube content\" id=\"iframe_youtube\" class=\"optanon-category-3\" data-src=\"https:\/\/www.youtube.com\/embed\/XGD343nq1dg\">[embedded content]<\/iframe> <\/p>\n<\/section>\n<p>Academics from an Israeli university have proven the feasibility of using fans installed inside a computer to create controlled vibrations that can be used to steal data from air-gapped systems.<\/p>\n<p>The technique, codenamed AiR-ViBeR, is the latest in a long list of wacky data exfiltration techniques devised by Mordechai Guri, the head of R&amp;D at the Ben-Gurion University of the Negev in Israel.<\/p>\n<p>For the past half-decade, Guri has been researching methods of sending data from air-gapped computers to the outside world without being detected.<\/p>\n<p>Research into this topic is important because air-gapped systems &#8212; computers isolated on local networks with no internet access &#8212; are often used on government or corporate networks to store sensitive data, such as classified files or intellectual property.<\/p>\n<p>Guri&#8217;s research doesn&#8217;t look at ways of compromising and planting malware on these super-secure systems but instead focuses on innovative and never-before-seen ways of getting the data out, without being detected, and through methods that network defenders are not aware of.<\/p>\n<p>In past research, Guri and his team at the Ben-Gurion university&#8217;s Cyber-Security Research Center have shown that attackers could steal data from secure systems using a plethora of techniques such as:<\/p>\n<ul>\n<li><a href=\"https:\/\/cyber.bgu.ac.il\/advanced-cyber\/system\/files\/LED-it-GO_0.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">LED-it-Go<\/a> &#8211; exfiltrate data from air-gapped systems via an HDD&#8217;s activity LED<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1608.08397\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">USBee<\/a> &#8211; force a USB connector&#8217;s data bus give out electromagnetic emissions that can be used to exfiltrate data<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1411.0237\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">AirHopper<\/a> &#8211; use the local GPU card to emit electromagnetic signals to a nearby mobile phone, also used to steal data<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1606.05915\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">Fansmitter<\/a> &#8211; steal data from air-gapped PCs using sounds emanated by a computer&#8217;s GPU fan<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1608.03431\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">DiskFiltration<\/a> &#8211; use controlled read\/write HDD operations to steal data via sound waves<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1503.07919\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">BitWhisper<\/a> &#8211; exfiltrate data from non-networked computers using heat emanations<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1703.07751\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">Unnamed attack<\/a> &#8211; uses flatbed scanners to relay commands to malware infested PCs or to exfiltrate data from compromised systems<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1706.01140\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">xLED<\/a> &#8211; use router or switch LEDs to exfiltrate data<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1709.05742\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">aIR-Jumper<\/a> &#8211; use a security camera&#8217;s infrared capabilities to steal data from air-gapped networks<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1703.10454\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">HVACKer<\/a> &#8211; use HVAC systems to control malware on air-gapped systems<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1802.02317\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">MAGNETO<\/a> &amp; <a href=\"https:\/\/arxiv.org\/abs\/1802.02700\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">ODINI<\/a> &#8211; steal data from Faraday cage-protected systems<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1803.03422\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">MOSQUITO<\/a> &#8211; steal data from PCs using attached speakers and headphones<\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1804.04014\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">PowerHammer<\/a> &#8211; steal data from air-gapped systems using power lines<\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/8754078\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">CTRL-ALT-LED<\/a> &#8211; steal data from air-gapped systems using keyboard LEDs<\/li>\n<li><a href=\"https:\/\/arxiv.org\/pdf\/2002.01078.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">BRIGHTNESS<\/a> &#8211; steal data from air-gapped systems using screen brightness variations<\/li>\n<\/ul>\n<p>In new research published this week, Guri expanded on this past work by looking at a medium his team has not analyzed before &#8212; namely vibrations.<\/p>\n<p><span class=\"img aspect-set\"><img decoding=\"async\" src=\"https:\/\/zdnet1.cbsistatic.com\/hub\/i\/2020\/04\/16\/0dbe0da8-ec36-4a7d-b362-893a089bcd4c\/exfil-mechanisms.png\" class alt=\"exfil-mechanisms.png\"><\/span><\/p>\n<section class=\"sharethrough-top\" data-component=\"medusaContentRecommendation\" data-medusa-content-recommendation-options=\"{&quot;promo&quot;:&quot;promo_zd_recommendation_sharethrough_top_in_article_desktop&quot;,&quot;spot&quot;:&quot;dfp-in-article&quot;}\">\n<\/section>\n<p>More specifically, Guri looked at the vibrations that can be generated using a computer&#8217;s fans, such as CPU fans, GPU fans, power-station fans, or any other fan installed on the computer chassis.<\/p>\n<p>Guri says that malicious code planted on an air-gapped system can control the speed at which fans work. By moderating fan speed up and down, the attacker can control the frequency of the vibrations coming off the fan.<\/p>\n<p>The AiR-ViBeR technique takes sensitive information stored on an air-gapped system and then alters the fan speed to generate a vibrational pattern that propagates through the nearby environment, such as a desk.<\/p>\n<p>Guri says that a nearby attacker can record these vibrations using accelerometer sensors found in modern smartphones, and then decode the information hidden in the vibration pattern to reconstruct the information stolen from the air-gapped system.<\/p>\n<p>Collecting these vibrations can be done in two ways. If the attacker has physical access to the air-gapped network, they can place their own smartphones on a desk near an air-gapped system and collect the beamed vibrations without touching the air-gapped computer.<\/p>\n<p>If the attacker does not have access to an air-gapped network, then attackers can infect the smartphones of employees working for the targeted company operating an air-gapped system. Malware on the employee&#8217;s device can pick up these vibrations on behalf of the attacker. Guri says this is possible because the accelerometer sensors in modern smartphones can be accessed by any app without requiring the user&#8217;s permission, which makes this technique highly evasive.<\/p>\n<h3>Stealing data via vibrations takes a while<\/h3>\n<p>However, while the AiR-ViBeR technique is some pretty innovative work, transmitting data through vibrations is extremely slow.<\/p>\n<p>In fact, data can be exfiltrated through vibrations at a lowly speed of half a bit per second, making AiR-ViBeR one of the slowest exfiltration methods that Guri and his team have come up with in recent years.<\/p>\n<p>While the AiR-ViBeR attack might be deemed &#8220;feasible,&#8221; it is highly unrealistic that attackers would ever use it in the wild, as they would most likely opt for other techniques that exfiltrate information at faster speeds.<\/p>\n<p>Additional technical details on the AiR-ViBeR technique can be found in a white paper published this week and named &#8220;<a href=\"https:\/\/arxiv.org\/abs\/2004.06195v1\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" data-component=\"externalLink\">AiR-ViBeR: Exfiltrating Data from Air-Gapped Computers via Covert Surface ViBrAtIoNs<\/a>.&#8221;<\/p>\n<p>Regular users have nothing to fear in regards to AiR-ViBeR, as there are far more dangerous threats lurking on the internet. However, administrators of super-secure air-gapped networks will most likely need to take Guri&#8217;s latest work into consideration and deploy some of the countermeasures listed in the paper, if they deem this technique a credible threat.<\/p>\n<p> READ MORE <a href=\"https:\/\/www.zdnet.com\/article\/academics-steal-data-from-air-gapped-systems-using-pc-fan-vibrations\/#ftag=RSSbaffb68\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Israeli researchers use vibrations from CPU, GPU, or PC chassis fans to broadcast stolen information through solid materials and to nearby receives, breaking air-gapped system protections.<br \/>\nREAD MORE HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":34458,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[62],"tags":[],"class_list":["post-34457","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdnet-security"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Academics steal data from air-gapped systems using PC fan vibrations 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat Intelligent and Cybersecurity News.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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