WebDAV Remote Payload Retrieval via Rundll32 DavSetCookie
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-05-08
- Updated
- 2026-08-28
ATT&CK techniques
Defense Evasion → C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects rundll32.exe calling davclnt.dll with the DavSetCookie export followed by a remote host, a WebDAV based download and execution technique used by the Andromeda Gamarue cluster. This pattern pulls a remote payload over WebDAV while hiding behind a signed Windows binary.
Reporting behind it
- cybereason.comhttps://www.cybereason.com/blog/new-cluster-andromeda-gamrue-c2
- attack.mitre.orghttps://attack.mitre.org/techniques/T1218/011/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1105/
- securityintelligence.comhttps://securityintelligence.com/x-force/itg05-leverages-malware-arsenal/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1187/
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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