huntrule

Suspicious Service Reconfiguration of SessionEnv or IKEEXT for DLL Injection by EAGERBEE

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-05-17
Updated
2026-08-28
AnalysisDetection

ATT&CK techniques

Persistence → 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 reconfiguration of the SessionEnv or IKEEXT services via sc config, a technique the EAGERBEE backdoor uses to load a malicious service DLL such as tsvipsrv.dll. These services are known targets for phantom-DLL loading under svchost. Modifying their binary path or service DLL indicates service hijacking for persistence.

Reporting behind it

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Possible Driver Enumeration via Driverquery for Rootkit Discovery
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Suspicious Service Reconfiguration of SessionEnv or IKEEXT for DLL Injection by EAGERBEE
Pivot detection · T1543.003 · 9 related

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