Utopia Tech
Security1 min read

ValleyRAT Backdoor Hides in Signed Adware That Users Add to Antivirus Exclusions

The threat actor known as Silver Fox has been observed distributing the ValleyRAT backdoor disguised as a signed Chinese adware application, running the malware under a trusted process to slip past users who add such software to their antivirus exclusions. Russian cybersecurity vendor Kaspersky said the attackers built the disguise around QN Wallpaper, a genuine Chinese desktop

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Utopia Tech

August 31, 2026 · 1 min read

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The threat actor known as Silver Fox has been observed distributing the ValleyRAT backdoor disguised as a signed Chinese adware application, running the malware under a trusted process to slip past users who add such software to their antivirus exclusions. Russian cybersecurity vendor Kaspersky said the attackers built the disguise around QN Wallpaper, a genuine Chinese desktop-wallpaper tool

Originally published at thehackernews.com

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