Suspicious DLL Side-Loading Host Binary Executed Outside System32 by Lazarus

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1574.001DLL
Persistence
- T1574.001DLL
Priv Esc
- T1574.001DLL
Defense Evasion
- T1574.001DLL
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects execution of signed host binaries such as CameraSettingsUIHost.exe or Dxpserver.exe from directories outside the Windows System32 path. The Lazarus group side-loads malicious DLLs (DUI70.dll, dwmapi.dll) by placing these legitimate executables in attacker-controlled folders. A trusted binary running from an unexpected location indicates a DLL search-order hijack.

Reporting behind it

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Suspicious DLL Side-Loading Host Binary Executed Outside System32 by Lazarus

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.

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