Malicious MSI Installation from Remote WebDAV Share via process_creation

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1047Windows Management Instrumentation
Persistence
Priv Esc
Defense Evasion
- T1218.007Msiexec
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects msiexec.exe installing an MSI package from a remote WebDAV or HTTP location when launched by the WMI provider host, matching the LATRODECTUS loader delivery chain. The oversized JavaScript dropper uses WMI to spawn msiexec and retrieve a remote installer. This staging technique delivers second-stage payloads while evading direct download detection.

Reporting behind it

Related detections9 linkedT1047 — drag to rearrange

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Malicious Remote MSI Execution with Image Extension via msiexec (via process_creation)

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Suspicious System Reconnaissance via WMI Command-Line Queries (via process_creation)

Malicious Impacket WMIexec Process Execution (via process_creation)

Malicious Msiexec Installation of a Remote MSI Package (via process_creation)

Suspicious Child Process Spawned by WMI Provider Host (via process_creation)

Malicious WMI Spwaning PowerShell Process - WMImplant (via process_creation)

Malicious MSI Installation from Remote WebDAV Share via process_creation

Pivot detection · T1047 · 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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