WhiteCobra

Also known as: WhiteCobra

WhiteCobra is a threat actor that has infiltrated the Visual Studio Code marketplace and Open VSX registry, deploying 24 malicious extensions targeting cryptocurrency development tools, particularly Solidity. The group employs social engineering tactics, manipulates download counts and reviews, and uses fake branding to establish credibility for their extensions, which deliver LummaStealer on Windows and unknown malware on macOS. WhiteCobra has been linked to a $500,000 cryptocurrency theft in July 2025 and maintains detailed playbooks with revenue targets, showcasing their organized and persistent operations. Despite ongoing efforts by security researchers to remove their malicious extensions, WhiteCobra continues to upload new threats weekly, highlighting the sophistication of their TTPs.

Introduction

WhiteCobra is a threat actor that has infiltrated the Visual Studio Code marketplace and Open VSX registry, deploying 24 malicious extensions targeting cryptocurrency development tools, particularly Solidity. The group employs social engineering tactics, manipulates download counts and reviews, and uses fake branding to establish credibility for their extensions, which deliver LummaStealer on Windows and unknown malware on macOS. WhiteCobra has been linked to a $500,000 cryptocurrency theft in July 2025 and maintains detailed playbooks with revenue targets, showcasing their organized and persistent operations. Despite ongoing efforts by security researchers to remove their malicious extensions, WhiteCobra continues to upload new threats weekly, highlighting the sophistication of their TTPs.

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

  • Unknown Logger
  • Windows Remote Desktop
  • Archelaus Beta
  • Revenge-RAT

Attribution and Evidence

Information pending cataloguing.

References

References pending cataloguing.