Suspicious Rundll32 Execution of WebDAV-Hosted DLL via Entry Export (via process_creation)

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1218.011Rundll32
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects rundll32.exe loading a DLL from a WebDAV UNC path and calling the exported function named Entry. Strela Stealer uses this technique to execute a fileless DLL payload delivered over WebDAV.

Reporting behind it

Related detections9 linkedT1218.011 — drag to rearrange

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Suspicious Rundll32 Execution with Latrodectus Loader Exports (via process_creation)

Suspicious Rundll32 Execution with IcedID Loader Export (via process_creation)

Malicious Scheduled Task Running rundll32 w32analytics (via process_creation)

Suspicious StrelaStealer DLL Execution via Rundll32 Hello Export from Temp (via process_creation)

Malicious Scheduled rundll32 Execution of ProgramData VMware DLL by BianLian

Suspicious Rundll32 Execution of WebDAV-Hosted DLL via Entry Export (via process_creation)

Pivot detection · T1218.011 · 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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