rules/windows/process_creation/sysmon_susp_webdav_client_execution.yml

title: Suspicious WebDav Client Execution
id: 2dbd9d3d-9e27-42a8-b8df-f13825c6c3d5
status: test
description: A General detection for svchost.exe spawning rundll32.exe with command arguments like C:\windows\system32\davclnt.dll,DavSetCookie. This could be an indicator of exfiltration or use of WebDav to launch code (hosted on WebDav Server).
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
references:
  - https://github.com/OTRF/detection-hackathon-apt29/issues/17
  - https://threathunterplaybook.com/evals/apt29/detections/7.B.4_C10730EA-6345-4934-AA0F-B0EFCA0C4BA6.html
date: 2020/05/02
modified: 2021/11/27
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    Image|endswith: '\rundll32.exe'
    CommandLine|contains: 'C:\windows\system32\davclnt.dll,DavSetCookie'
  condition: selection
falsepositives:
  - unknown
level: medium
tags:
  - attack.exfiltration
  - attack.t1048.003
Fixes&improvements 2021-04-08 00:32:01 +02:00			`title: Suspicious WebDav Client Execution`
fix: duplicate UUIDs 2021-05-27 10:29:21 +02:00			`id: 2dbd9d3d-9e27-42a8-b8df-f13825c6c3d5`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`status: test`
16 rules from DH APT29 day 1 - contributing soon 2020-10-12 18:13:13 -04:00			`description: A General detection for svchost.exe spawning rundll32.exe with command arguments like C:\windows\system32\davclnt.dll,DavSetCookie. This could be an indicator of exfiltration or use of WebDav to launch code (hosted on WebDav Server).`
			`author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)`
			`references:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- https://github.com/OTRF/detection-hackathon-apt29/issues/17`
			`- https://threathunterplaybook.com/evals/apt29/detections/7.B.4_C10730EA-6345-4934-AA0F-B0EFCA0C4BA6.html`
			`date: 2020/05/02`
			`modified: 2021/11/27`
16 rules from DH APT29 day 1 - contributing soon 2020-10-12 18:13:13 -04:00			`logsource:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`category: process_creation`
			`product: windows`
16 rules from DH APT29 day 1 - contributing soon 2020-10-12 18:13:13 -04:00			`detection:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`selection:`
			`Image\|endswith: '\rundll32.exe'`
			`CommandLine\|contains: 'C:\windows\system32\davclnt.dll,DavSetCookie'`
			`condition: selection`
16 rules from DH APT29 day 1 - contributing soon 2020-10-12 18:13:13 -04:00			`falsepositives:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- unknown`
			`level: medium`
			`tags:`
			`- attack.exfiltration`
			`- attack.t1048.003`