@siwatfa/yorn@0.0.2
Malicious code in @siwatfa/yorn (npm)
T1071 · Application Layer ProtocolT1552.001 · Credentials In FilesT1082 · System Information Discovery
Analysis
On execution the package performs a DNS lookup (beacon) to a sinkholed C2 domain while reading cloud-metadata credential endpoints (169[.]254[.]169[.]254 IMDS) and the full process environment. The beacon hostname is constructed dynamically and does not appear as a literal string in the shipped code. The package also bundles AWS SDK credential-chain code that reads cloud instance metadata and environment credentials.
- analyzed by
- Leitwacht
- first seen
- Aug 12, 2026, 11:17 AM
- analyzed
- Aug 12, 2026, 11:19 AM
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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.