modulyn@1.0.1
Malicious code in modulyn (npm)
T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1082 · System Information DiscoveryT1071.001 · Web ProtocolsT1105 · Ingress Tool Transfer
Analysis
A host-fingerprinting RAT disguised as a pino logger repackage. On require(), lib/writer.js collects process.env, hostname, platform, username, and MAC addresses, then fetches remote code from hxxps://www[.]jsonkeeper[.]com/b/4GJCU and evals it immediately. A second URL (hxxps://www[.]jsonkeeper[.]com/b/HY6M6) is hex-encoded in the same file for multi-stage payload delivery. The package ships the pino logo/assets/docs as camouflage.
- analyzed by
- Leitwacht
- first seen
- Jun 10, 2026, 07:12 PM
- analyzed
- Jun 10, 2026, 07:14 PM
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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.