The Gentlemen

Also known as: The Gentlemen, the gentlemen

The Gentlemen is a ransomware group that employs a dual-extortion strategy, encrypting sensitive files while exfiltrating critical business data to pressure victims into paying ransoms. Their operations leverage advanced techniques such as abusing legitimate utilities like PowerRun.exe for privilege escalation, using custom-built tools for defense evasion, and employing flexible encryption methods based on file size. The group targets medium to large organizations across various sectors, particularly in the Asia-Pacific region, and has demonstrated a high level of technical maturity and operational discipline. Their activities include systematic compromise of enterprise environments, mass account enumeration, and the use of encrypted channels for data exfiltration.

Introduction

The Gentlemen is a ransomware group that employs a dual-extortion strategy, encrypting sensitive files while exfiltrating critical business data to pressure victims into paying ransoms. Their operations leverage advanced techniques such as abusing legitimate utilities like PowerRun.exe for privilege escalation, using custom-built tools for defense evasion, and employing flexible encryption methods based on file size. The group targets medium to large organizations across various sectors, particularly in the Asia-Pacific region, and has demonstrated a high level of technical maturity and operational discipline. Their activities include systematic compromise of enterprise environments, mass account enumeration, and the use of encrypted channels for data exfiltration.

Activities and Tactics

Information pending cataloguing.

Notable Campaigns

Information pending cataloguing.

Tactics, Techniques, and Procedures (TTPs)

Information pending cataloguing.

Notable Indicators of Compromise (IOCs)

No curated IOCs are currently published for this actor. This section will be updated when stable, attributable indicators are available.

Malware and Tools

  • PowerDuke
  • POWERSTATS
  • Power Loader
  • POWERSOURCE
  • PowerRAT
  • CrossRat

Attribution and Evidence

Information pending cataloguing.

References

References pending cataloguing.