Dozens of malicious wallpapers found on Steam Workshop: gamers’ accounts at risk

Securelist·16. Juni 2026, 09:00

Since late 2025, malware has been spreading rapidly through the Steam Workshop, the gaming platform's built-in service for players to create and share custom content. The attackers are primarily targeting gamers in China and Russia.

MITRE ATT&CK Kill Chain (11 Techniken)

Reconnaissance

T1589.001

Credentials

T1592.002

Software

Resource Development

Server

Botnet

Server

Botnet

Malware

Malware

Execution

T1059.006

Python

T1059.007

JavaScript

T1204.002

Malicious File

Themen

Malware descriptionsMalware TechnologiesMalware DescriptionsMalwareBackdoorMinerTrojan-stealerLummaSteamWindows malware

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MITRE ATT&CK Kill Chain (11 Techniken)

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