Axios NPM Compromise Malicious C2 Domain DNS Query
Detects DNS queries for the malicious C2 domain associated with the plain-crypto-js/Axios npm package supply chain compromise. On March 30, 2026, malicious versions (1.14.1, 0.30.4) were published to npm, injecting a dependency (plain-crypto-js@4.2.1) that executed a postinstall script as a cross-platform RAT dropper. This detection detects endpoints attempting to resolve the attacker's C2 domain (sfrclak.com) used for command and control communication.
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Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
detection:
selection:
query:
- 'sfrclak.com'
- 'calltan.com'
- 'callnrwise.com'
condition: selectionFalse positives are unlikely for most environments. High confidence detection.
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