Donuts and Beagles: Fake Claude site spreads backdoor

Reported 07 May 2026 by otx · Severity: medium

A fraudulent website impersonating Anthropic's Claude AI platform has been distributing a previously undocumented backdoor called Beagle through malvertising campaigns. The attack begins when victims download a fictitious tool named Claude-Pro Relay from claude-pro[.]com, deliver