In brief
- Kaspersky found malicious Wallpaper Engine downloads on Steam Workshop with thousands of installs.
- The malware stole Steam credentials, hijacked active sessions, and deployed additional payloads, including Lumma and Vidar infostealers.
- The discovery follows a series of Steam-related malware incidents that have targeted gamers and crypto holders.
In the report published on Monday, Kaspersky said attackers used Steam Workshop to distribute malicious Wallpaper Engine downloads disguised as animated desktop wallpapers, many featuring female anime characters.
“The application-based wallpaper feature allows executable programs to run directly on a user’s Windows computer, allowing attackers to distribute malicious software under the…






