Storm-1175

Also known as: Storm-1175

Storm-1175 is a cybercriminal group known for deploying Medusa ransomware and exploiting public-facing applications for initial access. They have been observed exploiting a critical deserialization vulnerability in GoAnywhere MFT, tracked as CVE-2025-10035, which could lead to command injection and potential RCE. Microsoft Defender researchers identified exploitation activity aligned with TTPs attributed to Storm-1175, including the use of post-compromise techniques that involve creating a group named “ESX Admins” in the domain.

🌍 Country China

Introduction

Storm-1175 is a cybercriminal group known for deploying Medusa ransomware and exploiting public-facing applications for initial access. They have been observed exploiting a critical deserialization vulnerability in GoAnywhere MFT, tracked as CVE-2025-10035, which could lead to command injection and potential RCE. Microsoft Defender researchers identified exploitation activity aligned with TTPs attributed to Storm-1175, including the use of post-compromise techniques that involve creating a group named “ESX Admins” in the domain.

Activities and Tactics

Country of Origin: 🇨🇳 China

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

  • CyberGate
  • Cyber Eye RAT
  • Xploit
  • Archelaus Beta

Attribution and Evidence

Country of Origin: China Additional attribution information pending cataloguing.

References

References pending cataloguing.