Threat Actors Leverage Google Ads to Weaponize PDF Editor with TamperedChef

A malvertising campaign identified in September 2025 has brought a significant threat to Windows users worldwide. Attackers created fake PDF editing applications and promoted them through Google Ads to distribute a dangerous information-stealing malware called TamperedChef. The malware targets users searching for appliance manuals and PDF editing tools online, exploiting common search behaviors to deliver […]

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