Sigma rule: Potentially Suspicious WebDAV LNK Execution

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-4d53d99921c7, updated 2023-08-21T00:00:00.000Z.

Rule

Title
Potentially Suspicious WebDAV LNK Execution
Status
test
Level
medium
Author
Micah Babinski
Date
2023-08-21
File
rules/windows/process_creation/proc_creation_win_webdav_lnk_execution.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects possible execution via LNK file accessed on a WebDAV server.

Log source

product
windows
category
process_creation

Detection

selection:
    ParentImage|endswith: '\explorer.exe'
    Image|endswith:
        - '\cmd.exe'
        - '\cscript.exe'
        - '\mshta.exe'
        - '\powershell.exe'
        - '\pwsh.exe'
        - '\wscript.exe'
    CommandLine|contains: '\DavWWWRoot\'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution
  • attack.t1059.001
  • attack.t1204

MITRE ATT&CK ids this rule names

Related rules

References

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

Sources and licences

  • SigmaHQ

    "Potentially Suspicious WebDAV LNK Execution" by Micah Babinski (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_webdav_lnk_execution.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potentially Suspicious WebDAV LNK Execution",
entity page, dataset version ref-4d53d99921c7, updated 2023-08-21T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/1412aa78-a24c-4abd-83df-767dfb2c5bbe (accessed 2026-11-03).
Underlying source: SigmaHQ rule 1412aa78-a24c-4abd-83df-767dfb2c5bbe, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.