{"id":11883,"date":"2019-12-16T13:57:54","date_gmt":"2019-12-16T18:57:54","guid":{"rendered":"https:\/\/www.thesslstore.com\/blog\/?p=11883"},"modified":"2021-03-11T11:09:16","modified_gmt":"2021-03-11T16:09:16","slug":"usb-flash-drive-malware-how-it-works-how-to-protect-against-it","status":"publish","type":"post","link":"https:\/\/www.thesslstore.com\/blog\/usb-flash-drive-malware-how-it-works-how-to-protect-against-it\/","title":{"rendered":"USB Flash Drive Malware: How It Works &#038; How to Protect Against It"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-from-the-university-of-illinois-to-iran-and-everywhere-in-between-usb-flash-drive-malware-is-a-serious-risk\">From the University of Illinois to Iran (and everywhere in-between), USB flash drive malware is a serious risk<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Back in 2016, researchers from the University of Illinois left nearly 300 unmarked USB flash drives in and around the University campus to see how people reacted to them. All in all, <a href=\"https:\/\/elie.net\/publication\/users-really-do-plug-in-usb-drives-they-find\/\">98% of the dropped devices<\/a> were found by students and staff, and the study found that at least half of these were plugged into a host device to try to access the content.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a hacker trying to contaminate a computer network, those statistics are pretty much a slam dunk and paints a picture of how careless we can be with our USB devices.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Let\u2019s hash it out.<span id=\"newline\"><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-a-history-of-usb-drive-malware\">A History of USB Drive Malware<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">USB drives have been around for over 20 years, offering users a convenient method to store and move files between computers that aren\u2019t digitally connected to each other.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/Natanz-nuclear-300x225.jpg\" alt=\"\" class=\"wp-image-11899\" srcset=\"https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/Natanz-nuclear-300x225.jpg 300w, https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/Natanz-nuclear-768x576.jpg 768w, https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/Natanz-nuclear.jpg 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><figcaption> Natanz nuclear facility, the target of the Stuxnet USB malware attack.<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/cyber.gc.ca\/en\/guidance\/cyber-threat-and-cyber-threat-actors\">Cyber threat actors<\/a> have routinely abused this capability with the most famous example being the \u2018world\u2019s first digital weapon,\u2019 the <a href=\"https:\/\/www.wired.com\/2014\/11\/countdown-to-zero-day-stuxnet\/\">Stuxnet worm<\/a> first discovered back in 2010, which used USB devices to attack the network of an Iranian nuclear facility.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Although USBs are still frequently used, cloud services of today, such as Dropbox and Google Drive, have taken on much of the responsibility when it comes to file storage and transfer, and there is a greater understanding of the security risk that can be posed by USB devices. Millions of USB devices are still designed, produced and sold each year with many used at home and at work (they\u2019re also still a very popular item during promotional giveaways).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 2017, a Kaspersky Lab data study revealed that every year around one in four USB users across the globe are affected by a \u2018local\u2019 cyber incident. This can refer to breaches that result from viruses that are present on the user\u2019s computer or are introduced by infected removable media. <\/p>\n\n\n<span style=\"--tl-form-height-m:150.25px;--tl-form-height-t:121.4583px;--tl-form-height-d:121.4583px;\" class=\"tl-placeholder-f-type-shortcode_12753 tl-preload-form\"><span><\/span><\/span>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-usb-malware-security-challenge\">The USB Malware Security Challenge<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">USB drives continue to pose a big challenge\nwhen it comes to information security for both consumers and businesses. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Although tactics to block threats of a\nmalicious nature from USB drives have been around almost as long as the drives\nthemselves and the danger of contracting a malware infection is widely\nunderstood, USB malware attacks are still occurring. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Why? People continue to plug USB drives\ninto computer systems that are unprotected, so they\u2019re making it easy for\ncybercriminals to penetrate their data. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No matter the various safeguards available,\nthe fact remains that there will always be a considerable percentage of devices\nthat aren\u2019t running antivirus software, not set up to scan USB drives, or not\nset to disallow autorun. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This means that an infected flash drive\nplugged into an unprotected device could instantly infect it and spread the\nvirus through any network it\u2019s attached to. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-do-usb-devices-get-infected-with-malware\">How Do USB Devices Get Infected with Malware?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s possible to come across both\nunintentional and intentional infection. The Stuxnet worm is an example of the\nlatter, where someone uploads malicious code onto the drive with the intention\nof filtering the code into the targeted network.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unintentional infection might occur when someone plugs an unprotected USB into a poorly safeguarded system in an internet caf\u00e9, airport or anywhere with <a href=\"https:\/\/www.itproportal.com\/2015\/11\/12\/poor-endpoint-security-putting-companies-at-risk\/\">poor public endpoint security (which is about 70% of places)<\/a>. You may detect the virus sometime after you\u2019ve plugged the device into your machine, but there\u2019s no telling what damage may have already been done.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How to Prevent USB Flash Drive Viruses\" width=\"960\" height=\"540\" src=\"https:\/\/www.youtube.com\/embed\/qRjoj89kpNo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-protect-your-usb-device\">How to Protect Your USB Device <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019re using a USB drive to transfer\nfiles across several host devices, it can make you vulnerable to malware \u2013 and\nyou can never be too careful when it comes to USB security, particularly if\nyou\u2019re handling sensitive data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Contracting a virus can take a matter of\nseconds from the moment you plug the device into the host network. Whether you\ncontract ransomware, which locks down your entire system, or silent malware\nthat infects your machine quietly, it could do huge damage by the time you\u2019ve\nnoticed it. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unfortunately, USB flash drive malware\ndoesn\u2019t work like an email virus (which requires you to click on something),\nall it takes is plugging an infected USB into a machine.&nbsp; <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Having said that, there are several\ndifferent methods that you can use to ensure that your data isn\u2019t exposed and\nabout to fall into the wrong hands.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-defeat-usb-drive-malware-software-security\">How to Defeat USB Drive Malware: Software Security<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-write-protectors\">Write Protectors<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If your USB drive doesn\u2019t include a\nhardware switch for write protection, then you should be using a software write\nprotector, such as <a href=\"https:\/\/www.techspot.com\/downloads\/6256-usb-write-protect.html\">USB Write\nProtect 2.0<\/a>. A software write protector will effectively prevent any data\nfrom being deleted as well as protect the device from malware being written\nonto your drive. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-usb-anti-virus\">USB Anti-Virus<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If you have write protection enabled, there\nis still a possibility of contracting a virus when you go to transfer files, so\nit makes sense to use a decent USB anti-virus such as <a href=\"https:\/\/portableapps.com\/apps\/security\/clamwin_portable\">ClamWin<\/a>. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-encryption\">Encryption<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019re looking to protect your privacy by securing your data, you could install an encryption program like <a href=\"https:\/\/www.veracrypt.fr\/en\/Home.html\">VeraCrypt<\/a> or <a href=\"https:\/\/www.windowscentral.com\/how-use-bitlocker-encryption-windows-10\">BitLocker<\/a> to Windows for password protection on your USB device.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This means that even if someone has access\nto your device, it will make it much harder for them to retrieve sensitive\ninformation or hide malicious files inside your existing files and folders. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-protect-your-host-device\">Protect Your Host Device<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If your device is unintentionally infected,\nyou probably won\u2019t know about it immediately. The best thing to do is to\nprotect yourself from the outset by installing software that will inform you if\nyour removable device is infected with malicious malware. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.softpedia.com\/get\/System\/System-Miscellaneous\/USB-FireWall.shtml\">USB\nFirewall<\/a> will protect your computer from third-party programmes introduced\nfrom a USB device by running in the background and informing you of suspicious\nactivity. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-defeat-usb-drive-malware-hardware-security\">How to Defeat USB Drive Malware: Hardware Security<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"625\" height=\"350\" src=\"https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/toshiba-flash-625x350.jpg\" alt=\"\" class=\"wp-image-11887\" srcset=\"https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/toshiba-flash-625x350.jpg 625w, https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/toshiba-flash-625x350-300x168.jpg 300w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Image via Geek.com<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-keypad-flash-drive\">Keypad Flash Drive <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some flash drives are available with a\nkeypad that allows you to create a unique password, which will physically lock the\ndevice (like a padlock). You\u2019ll simply need to enter the unique password to\naccess your device. &nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-self-destruct\">Self-Destruct <\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Flash drives, such as <a href=\"https:\/\/www.ironkey.com\/en-US\/\">Ironkey<\/a>,\nwill \u2018self-destruct\u2019 if the password is entered incorrectly too many times.\nThere are also some flash drives which are configured to delete files after a\ncertain period. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hardware-encryption\">Hardware Encryption<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If you need to transfer serious data onto a\nflash drive, you could opt for a flash drive with 128-bit AES hardware\nencryption. Hardware encryption is often considered a better option than\nsoftware encryption since it doesn\u2019t carry the same risk of <a href=\"https:\/\/www.ontrack.com\/uk\/blog\/making-data-simple\/hardware-encryption-vs-software-encryption-the-simple-guide\/\">getting\nhacked<\/a>. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Stopping USB drive malware is important for individuals and for organizations. USB devices are still very much part of our everyday lives at work and at home, despite the emergence of Dropbox and Google Drive. However, unless we learn to protect the information we have stored on our USB devices, we\u2019re guilty of making things much easier for those who wish to misuse our data. <\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>From the University of Illinois to Iran (and everywhere in-between), USB flash drive malware is a serious risk Back in 2016, researchers from the University of Illinois left nearly 300&#8230;<\/p>\n","protected":false},"author":26,"featured_media":11895,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":"","tve_updated_post":"","tve_custom_css":"","tve_user_custom_css":"","tve_globals":{},"tcb2_ready":0,"tcb_editor_enabled":0,"tve_landing_page":"","_tve_header":"","_tve_footer":""},"categories":[16],"tags":[4163,11610,11611],"class_list":["post-11883","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hashing-out-cyber-security","tag-malware","tag-usb","tag-usb-drive-malware","post-with-tags"],"views":112466,"jetpack_featured_media_url":"https:\/\/www.thesslstore.com\/blog\/wp-content\/uploads\/2019\/12\/usb-drive-malware.png","_links":{"self":[{"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/posts\/11883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/comments?post=11883"}],"version-history":[{"count":0,"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/posts\/11883\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/media\/11895"}],"wp:attachment":[{"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/media?parent=11883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/categories?post=11883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thesslstore.com\/blog\/wp-json\/wp\/v2\/tags?post=11883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}