Malicious ViPNet Backdoor Loader via lumpdiag.exe Path Substitution

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1574.001DLL
Persistence
- T1574.001DLL
Priv Esc
- T1574.001DLL
Defense Evasion
- T1218System Binary Proxy Execution
- T1574.001DLL
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects lumpdiag.exe being started with the --msconfig argument that triggers path substitution to load a malicious msinfo32.exe from the ViPNet update directory. This behavior is used by a backdoor masquerading as ViPNet secure networking software updates against Russian organizations to achieve execution through a trusted binary. Detecting it exposes the DLL/binary search-order hijack that bootstraps the loader chain.

Reporting behind it

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Malicious ViPNet Backdoor Loader via lumpdiag.exe Path Substitution

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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