![]() The Cloud9 malware contained within these extensions possesses a wide array of abilities, including cookie-stealing and keylogging. Unfortunately, threat actors are all too willing to take advantage of such users by providing them with malware-laden browser extensions disguised as Adobe Flash Player. Some users may be driven to websites that promote Flash Player updates in the hopes of accessing this content. ![]() While Adobe officially discontinued Flash Player in December 2020 and most modern web browsers don’t support Flash, some websites still offer Flash games and other web content. Threat actors instead seem to spread the malware most commonly on websites offering fake Adobe Flash Player updates. Unlike other malicious browser extensions, the extensions containing the Cloud9 malware have never been available on any official browser extension stores, as far as Zimperium is aware. ![]() ![]() The malware within these extensions is also capable of leveraging various vulnerabilities to escape the browser and infect the Windows operating system. When installed, these browser extensions take control of infected browsers to steal valuable information and perform DDoS attacks. The malware in question is known as Cloud9 and takes the form of browser extensions. Researchers at the cybersecurity firm Zimperium have discovered a botnet made up of web browsers infected by malware. ![]()
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