In August 2025, Trend Micro investigated a new ransomware campaign orchestrated by The Gentlemen, an emerging and previously undocumented threat group. This threat actor quickly established itself within the threat landscape by demonstrating advanced capabilities through their systematic compromise of enterprise environments.
By adapting their tools mid-campaign—shifting from generic anti-AV utilities to highly targeted, specific variants—the attackers demonstrate versatility and determination, posing a significant threat to organizations regardless of their security defenses. The campaign’s attack chain exposed several highly sophisticated and concerning tactics. Notably, the threat actor exploited legitimate drivers for defense evasion, abused Group Policy Objects (GPO) to facilitate domain-wide compromise, and deployed custom malicious tools designed to disable security solutions present in the environment.
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Source: Trend Micro
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