Uncommon file access over WebDAV

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK Tactic	Command and Control (TA0011)
ATT&CK Technique	Application Layer Protocol: Web Protocols (T1071.001)
Severity	Low

Description

Uncommon file access over WebDAV.

Attacker's Goals

Threat actors may use the WebDAV to blend in existing network traffic.

Investigative actions

• Investigate the process {actor_process_image_name} which tried to access the remote file.
• Investigate the remote host {webdav_dst_from_file_event}.

Variations

High-risk file read over WebDAV by a LOLBIN process

Synopsis

Field	Value
ATT&CK Tactic	Command and Control (TA0011)
ATT&CK Technique	Application Layer Protocol: Web Protocols (T1071.001)
Severity	High

Description

High-risk file read over WebDAV by a LOLBIN process.

Attacker's Goals

Threat actors may use the WebDAV to blend in existing network traffic.

Investigative actions

• Investigate the process {actor_process_image_name} which tried to access the remote file.
• Investigate the remote host {webdav_dst_from_file_event}.