Suspicious GHOSTPULSE DLL Side-Loading via Signed Binary

PremiumReviewedSigma · High · v1
Category
image_load
Author
HuntRule
Published
2026-09-17
Updated
2026-09-17

ATT&CK techniques

Execution → Defense Evasion
  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

  14. Impact

What it detects

This rule detects the signed application Crysta_X64.exe loading the attacker-supplied DllXDownloadManager.dll, the DLL side-loading pair used to launch the GHOSTPULSE loader. Adversaries abuse this trusted executable to proxy execution of malicious code while evading application controls before deploying the ARECHCLIENT2 stealer.

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Pivot detection · T1574.001 · 9 related

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