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PolinRider Hijacks 10 npm Packages: Detection & IOCs

Hijacked npm packages read payload IPs from Ethereum transactions, then eval() XOR-encoded JavaScript. 9 detection rules, 25 IOCs and a free Splunk SPL rule.

Read the full threat intel for PolinRider Hijacks 10 npm Packages: Detection & IOCs →

Chapters

  1. 0:00The hook12 malicious npm releases.
  2. 0:04The storyLoads on require.
  3. 0:10Attack pathPackages harbor the loader.
  4. 0:22AttributionAttributed to PolinRider operators.
  5. 0:28Indicators of compromise20 indicators to hunt: 1 IP, 2 URLs and 3 SHA-256 hashes, and more.
  6. 0:37MITRE ATT&CK techniques8 ATT&CK techniques, from initial access to command and control.
  7. 0:42Remediation5 steps now: Search lockfiles and direct/transitive dependencies for the 12 affected releases.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:0012 malicious npm releases.

0:05Loads on require.

0:06Queries Ethereum for C2.

0:11Packages harbor the loader.

0:13Ethereum transactions hide C2.

0:15Loader fetches code and executes it.

0:18Spawns detached interactive shells.

0:23Attributed to PolinRider operators. Confidence: medium.

0:2820 indicators to hunt: 1 IP, 2 URLs and 3 SHA-256 hashes, and more.

0:378 ATT&CK techniques, from initial access to command and control.

0:425 steps now: Search lockfiles and direct/transitive dependencies for the 12 affected releases.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.