A fake version for the Claude AI website offers a malicious Claude-Pro Relay download that pushes a previously undocumented backdoor for Windows named Beagle. The threat actor advertises Claude-Pro as a "high-performance relay service designed specifically for Claude-Code" developers. The fake website is a simplistic attempt at mimicking the legitimate site for the popular Claude large language model (LLM) and an AI assistant, using similar colors and fonts. However, the facade falls apart when it comes to links, as they are mere redirects to the front page, researchers at cybersecurity company Sophos say in a report today. Users landing on “claude-pro[.]com” that fail to see through the deception can only click on a large download button for the malicious resource, a 505MB archive named…