Suspicious Proxyjacking Service Resolution Observed in perfctl Campaign (via dns_query)

PremiumReviewedSigma · Medium · v1
Product
linux
Category
dns_query
Author
HuntRule
Published
2026-09-06
Updated
2026-09-06

ATT&CK techniques

Impact
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

What it detects

This rule detects Linux hosts resolving bandwidth sharing and proxyjacking service domains that the perfctl malware abuses to monetize victim network connections alongside cryptomining. Resolution of these services from a server workload is unusual and warrants review.

Related detections9 linkedT1496 — drag to rearrange
Malicious WinRing0 Vulnerable Driver Load for Coin Mining
Suspicious Power Configuration Change to Prevent Sleep via powercfg
Suspicious kswapd0 Masquerading Miner Process
Suspicious XMRig Cryptominer Execution with Pool URL by StaryDobry
Suspicious SteelFox Service Binary Launched by services.exe
Suspicious Cryptomining Shell Script Execution sex.sh or miner.sh on Linux (via process_creation)
Malicious XMRig Cryptominer Execution via Custom Command-Line Flags (via process_creation)
Malicious XMRig GhostRider Coinminer Execution with Mining Pool Arguments
Suspicious Sleep and Hibernate Disabled via Powercfg for Mining (via process_creation)
Suspicious Proxyjacking Service Resolution Observed in perfctl Campaign (via dns_query)
Pivot detection · T1496 · 9 related

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