mobile-security-malware2.605 min read
Beware: Android Dropper-as-a-Service Evades Google's Defenses
2 years ago•Source: The Hacker News
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1.675 min•2 years ago
Android Malware Apps Evade Detection with Stealthy APK Compression
Threat actors are using Android Package (APK) files with unsupported compression methods to evade malware analysis. Over 3,300 artifacts have been found using this technique, with 71 samples able to be loaded onto the operating system without issues. These apps were likely distributed through untrusted app stores or social engineering tactics. The use of unsupported compression methods limits decompilation and analysis, making it difficult to detect and analyze the malware. Additionally, malware authors are deliberately corrupting APK files to trigger crashes on analysis tools. This discovery follows Google's recent revelation about threat actors using versioning to bypass malware detection on the Play Store.
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