A sophisticated Android remote access trojan (RAT) has emerged on GitHub, presenting significant security concerns for mobile device users worldwide. The malware, publicly available under the repository “Android-RAT” by user Huckel789, claims to offer fully undetectable (FUD) capabilities that can bypass modern security measures and antivirus detection systems. This malicious software represents a concerning evolution […] The post New Fully Undetectable FUD Android RAT Hosted on GitHub appeared first on Cyber Security News.

In recent weeks, security teams have observed a surge in malvertising campaigns distributing what appears to be a fully functional PDF editor. Dubbed TamperedChef, this malware masquerades as a legitimate application—AppSuite PDF Editor—leveraging convincing advertisements to lure European organizations and individuals into downloading the installer. Once executed, the installer exhibits expected functionalities for nearly two […] The post TamperedChef Malware as PDF Editor Harvest Browser Credentials and Allows Backdoor Access appeared first on Cyber Security News.

Yurei ransomware first emerged in early September 2025, targeting Windows environments with a sophisticated Go-based payload designed for rapid, large-scale encryption. Once executed, the malware enumerates all accessible local and network drives, appends a .Yurei extension to each file, and writes unique ransom notes in every affected directory. Its operators then demand payment over Tor, […] The post Yurei Ransomware Leverages SMB Shares and Removable Drives to Encrypt Files appeared first on Cyber Security News.