Malicious Anime Wallpapers on Steam Are Stealing Crypto Wallet Data

Kaspersky found dozens of infected Wallpaper Engine downloads on Steam Workshop distributing Lumma and Vidar infostealers that steal cryptocurrency wallet data and credentials.

• Kaspersky identified malicious wallpaper packages on Steam Workshop with thousands of downloads each.
• The malware deploys Lumma and Vidar infostealers that target crypto wallet data, browser credentials, and session tokens.
• Victims were primarily in China and Russia, but also in Singapore, Hong Kong, Germany, India, and Canada.
• Attackers exploited Steam's wallpaper feature that allows executable programs to run on Windows computers.
• This follows a pattern of Steam-related malware incidents including compromised games like Chemia.

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