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

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1543.003Windows Service
Priv Esc
- T1055.001Dynamic-link Library Injection
- T1543.003Windows Service
Defense Evasion
- T1055.001Dynamic-link Library Injection
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
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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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.

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