Sigma rule: Process Execution From WebDAV Share

Rule

Title

Process Execution From WebDAV Share

Status

experimental

Level

low

Author

Swachchhanda Shrawan Poudel (Nextron Systems)

Date

2025-06-13

File

rules-threat-hunting/windows/process_creation/proc_creation_win_webdav_process_execution.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects execution of processes with image paths starting with WebDAV shares (\\), which might indicate malicious file execution from remote web shares.
Execution of processes from WebDAV shares can be a sign of lateral movement or exploitation attempts, especially if the process is not a known legitimate application.
Exploitation Attempt of vulnerabilities like CVE-2025-33053 also involves executing processes from WebDAV paths.

Log source

product

windows

category

process_creation

Detection

selection:
    Image|startswith: '\\\\'
    Image|contains: '\DavWWWRoot\'
condition: selection

False positives (as the rule lists them)

• Legitimate use of WebDAV shares for process execution
• Known applications executing from WebDAV paths

Tags

• attack.execution
• attack.command-and-control
• attack.lateral-movement
• attack.t1105
• detection.threat-hunting

MITRE ATT&CK ids this rule names

• T1105

References

• https://research.checkpoint.com/2025/stealth-falcon-zero-day/

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-threat-hunting/windows/process_creation/proc_creation_win_webdav_process_execution.yml