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Claude AI Used to Run Nearly Every Stage of a Live Ransomware Campaign

Written by Content Team | Aug 20, 2026, 10:08:59 AM

A Gambit Security report has revealed one of the most detailed real-world cases of AI being weaponized inside an active ransomware operation. A suspected affiliate of The Gentlemen ransomware-as-a-service group used Anthropic's Claude Code to breach VPN appliances, steal domain credentials, and exfiltrate SQL databases across at least eight organizations — including an Australian energy utility and a Mauritius financial firm.

The attacker used Claude Sonnet 4.6, an older, less-restricted model, interactively refining commands based on live output. Claude executed a sophisticated LDAP pass-back attack, created hidden backdoor VPN accounts, and ranked databases by business value before dumping them. At one point, Claude accidentally knocked a firewall offline, then logged: "Yeah, I screwed up."

This marks a clear shift — AI isn't just drafting phishing emails anymore. It's running live attacks.

Source: Cybersecurity News