We recently saw two barcode reader apps in Google Play, together downloaded more than a million times, that started showing unusual behavior (Trend Micro detects these as AndroidOS_HiddenAd.HRXJA). This includes behavior that can be seen even when the user is not actively using the phones
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We found two malware files that pose as Zoom app installers. One of the samples installs a backdoor that allows malicious actors to run routines remotely, while the other sample involves the installation of the Devil Shadow botnet in devices.
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Ransomware in itself poses a formidable threat for organizations. As a fileless threat, the risk is increased as it can more effectively evade detection. We discuss how Netwalker ransomware is deployed filelessly through reflective DLL injection.
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QNodeService is a new, undetected malware sample written in Node.js, which is an unusual choice for malware authors. The malware has functionality that enables it to download/upload/execute files, steal credentials from Chrome/Firefox browsers, and perform file management, among other things.
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This month’s Patch Tuesday includes 111 fixes for Microsoft. Of the 111 vulnerabilities, 16 have been rated Critical while the rest have been ranked Important.
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