Malicious Linux systemd Persistence nvmconf.service

PremiumReviewedSigma · High · v1
Product
linux
Category
file_event
Author
HuntRule
Published
2026-10-13
Updated
2026-10-13

ATT&CK techniques

Persistence → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects creation of a systemd unit named nvmconf.service, the Linux persistence installed by the Mastra npm supply chain compromise. The service masquerades as Node version manager configuration to relaunch the malicious payload across reboots.

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Suspicious Masquerading systemd Unit display-managerd Creation via File System
Suspicious Systemd Service Unit Written to System Directory (via process_creation)
Suspicious Systemd Service Unit Creation In System Directory
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Malicious Linux systemd Persistence nvmconf.service
Pivot detection · T1543.002 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.