Mitigating the Axios npm supply chain compromise
2026-04-01 • Microsoft •
Microsoft attributed the malicious axios npm releases 1.14.1 and 0.30.4 and their command-and-control infrastructure to Sapphire Sleet, a North Korean state actor. The compromise inserted the fake dependency [email protected] so npm installation or update would run setup.js without changing axios application logic. The loader contacted hxxp://sfrclak[.]com:8000/6202033, sent platform-specific POST bodies, and retrieved RAT payloads for macOS, Windows, and Linux. Windows execution used a VBScript stager, copied PowerShell to %PROGRAMDATA%\wt.exe, and added persistence through %PROGRAMDATA%\system.bat and an HKCU MicrosoftUpdate run key. Microsoft advised affected users to rotate secrets and downgrade to safe axios versions because the install-time hook could affect developer endpoints and CI/CD systems.
Indicators of Compromise
| Type | Value | First Seen | Last Seen |
|---|---|---|---|
| DOMAIN | sfrclak.com | 2026-03-30 | 2026-04-20 |
| HASH | ed8560c1ac7ceb6983ba995124d5917… | 2026-03-31 | 2026-04-17 |
| HASH | f7d335205b8d7b20208fb3ef93ee6dc… | 2026-03-31 | 2026-04-17 |
| HASH | 617b67a8e1210e4fc87c92d1d1da45a… | 2026-03-30 | 2026-04-17 |
| HASH | 92ff08773995ebc8d55ec4b8e1a225d… | 2026-03-30 | 2026-04-17 |
| HASH | fcb81618bb15edfdedfb638b4c08a2a… | 2026-03-30 | 2026-04-17 |
| URL | http://sfrclak.com:8000/6202033 | 2026-03-30 | 2026-04-17 |
| IPv4 | 142.11.206.73 | 2026-03-30 | 2026-04-17 |
| URL | http://sfrclak.com | 2026-04-01 | 2026-04-03 |
| URL | http://sfrclak.com:8000 | 2026-04-01 | 2026-04-03 |
| IPv4 | 142.11.206.72 | 2026-04-01 | 2026-04-01 |