Paper Werewolf uses AI-generated decoys and XLLs to target Russian organizations
The threat group Paper Werewolf (aka GOFFEE) is conducting a cyberespionage campaign targeting Russian defense and high-technology organizations. The campaign uses AI-generated decoy documents, such as invitations and official letters, to trick recipients into opening malicious Excel XLL add-ins that deliver a backdoor called EchoGather. The backdoor collects system information and communicates with a command-and-control server. The campaign is ongoing and was first detected in late October 2025.
- Date it happened
- 2025-10-26
- Organisation involved
- Paper Werewolf
- Product, system or model
- EchoGather
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