Kaspersky finds malware in Steam Wallpaper Engine

Attackers smuggled malware into Steam through Wallpaper Engine, hijacking accounts to spread infected files. Kaspersky found dozens of malicious packages downloaded tens of thousands of times. The campaign targets gamers in China with credential stealers, crypto miners, and ransomware. The $4.99 wallpaper tool's application wallpaper type allows third-party code execution.