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Chrome's anti-abuse protections block 7 billion unwanted Android notifications daily
Google Chrome now auto-revokes web push notification permissions, blocking over 7 billion unwanted and abusive notifications daily on Android.
Google announced anti-abuse measures in Chrome that automatically revoke notification permissions for inactive websites and sites Safe Browsing flags for abusive or deceptive notification practices, with users able to restore permissions via Safety Hub. The protections combine Chrome Security, Firebase Cloud Messaging, and Safe Browsing behavioral detection of coordinated abusive networks, and blocked more than 7 billion unwanted notifications per day on Android in Q1. Google also limits abusive domains to 1,000 push messages per minute via FCM and redesigned Android prompts with one-tap unsubscribe.
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Upatre Continued to Evolve with new Anti
Unit 42 analyzes an undocumented Upatre downloader variant with VM detection via process hashing, packed code, disabled Windows defenses and Namecoin .bit C2 domains.
Unit 42 analyzed an Upatre downloader variant compiled in December 2016 that went largely undetected by automated systems, featuring heavy code flow obscuration, on-demand decryption of network communications, and novel virtual machine detection. The sample enumerates running processes, computes CRC32 hashes XORed with a hard-coded key, and sleeps if analysis-related processes such as vmtoolsd.exe or python.exe are found. It masquerades with Google Chrome icons, disables Windows Defender, Firewall and other security services, injects code into msiexec.exe, and resolves .bit Namecoin domains like bookreader[.]bit via hardcoded OpenNIC DNS servers over TCP.
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