Cybercrime Group

Cl0p

Russia • Active since 2019

Cl0p is a ransomware gang that became famous for hacking file transfer software used by thousands of companies. When they find one bug, they can hack hundreds of companies at once.

Overview

Cl0p is a ransomware operation known for mass exploitation of zero-day vulnerabilities in file transfer software. They have exploited MOVEit, GoAnywhere, and Accellion FTA vulnerabilities.

Also Known As

TA505 affiliate, FIN11, Lace Tempest

Target Industries

All Industries, Healthcare, Finance, Government, Education

Target Regions

Global

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Tactics, Techniques & Procedures

  • Zero-day exploitation
  • Mass exploitation campaigns
  • File transfer software targeting
  • Data extortion without encryption
  • Automated victim processing

Known Tools & Malware

Cl0p ransomware, DEWMODE, FlawedGrace, SDBOT, Custom exploits

Notable Campaigns

MOVEit Transfer Exploitation (2023)

Exploited MOVEit zero-day affecting 2,500+ organizations.

GoAnywhere MFT Exploitation (2023)

Exploited GoAnywhere zero-day affecting 130+ organizations.

MITRE ATT&CK Techniques

T1190, T1486, T1567, T1078, T1059

Defense Recommendations

  1. 1.

    Patch file transfer software immediately

  2. 2.

    Inventory all file transfer applications

  3. 3.

    Implement network segmentation for file transfers

Related Threat Actors

Ta505, Wizard Spider

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