Sigma rule: WebDAV Temporary Local File Creation

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-c5b4f79661c4, updated 2023-08-21T00:00:00.000Z.

Rule

Title
WebDAV Temporary Local File Creation
Status
test
Level
medium
Author
Micah Babinski
Date
2023-08-21
File
rules-threat-hunting/windows/file/file_event/file_event_win_webdav_tmpfile_creation.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the creation of WebDAV temporary files with potentially suspicious extensions

Log source

product
windows
category
file_event

Detection

selection:
    TargetFilename|contains: '\AppData\Local\Temp\TfsStore\Tfs_DAV\'
    TargetFilename|endswith:
        - '.7z'
        - '.bat'
        - '.dat'
        - '.ico'
        - '.js'
        - '.lnk'
        - '.ps1'
        - '.rar'
        - '.vbe'
        - '.vbs'
        - '.zip'
condition: selection

False positives (as the rule lists them)

  • Legitimate use of WebDAV in an environment

Tags

  • attack.initial-access
  • attack.resource-development
  • attack.t1584
  • attack.t1566
  • detection.threat-hunting

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-threat-hunting/windows/file/file_event/file_event_win_webdav_tmpfile_creation.yml

Sources and licences

  • SigmaHQ

    "WebDAV Temporary Local File Creation" by Micah Babinski (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-threat-hunting/windows/file/file_event/file_event_win_webdav_tmpfile_creation.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: WebDAV Temporary Local File Creation",
entity page, dataset version ref-c5b4f79661c4, updated 2023-08-21T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/4c55738d-72d8-490e-a2db-7969654e375f (accessed 2026-11-03).
Underlying source: SigmaHQ rule 4c55738d-72d8-490e-a2db-7969654e375f, 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.