Elastic Security Detection Rules

Suspicious Execution from a WebDav Share

Last updated 9 days ago on 2026-05-03
Created 9 months ago on 2025-08-19

About

Identifies attempts to execute or invoke content from remote WebDAV shares. Adversaries may abuse WebDAV paths, public tunnels, or host@port UNC paths to run tools or scripts while reducing local staging on the victim file system.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: ExecutionData Source: Elastic EndgameData Source: Elastic DefendData Source: Windows Security Event LogsData Source: Microsoft Defender XDRData Source: SysmonData Source: SentinelOneData Source: CrowdstrikeLanguage: eql
Severity
high
Risk Score
73
MITRE ATT&CK™

Execution (TA0002)(external, opens in a new tab or window)

↳ User Execution (T1204)(external, opens in a new tab or window)

Lateral Movement (TA0008)(external, opens in a new tab or window)

↳ Remote Services (T1021)(external, opens in a new tab or window)

↳ Lateral Tool Transfer (T1570)(external, opens in a new tab or window)

Command and Control (TA0011)(external, opens in a new tab or window)

↳ Application Layer Protocol (T1071)(external, opens in a new tab or window)

↳ Ingress Tool Transfer (T1105)(external, opens in a new tab or window)

False Positive Examples
Trusted WebDAV content when the command namespace, parent, utility identity, signer, user/host scope, and child/artifact/destination evidence align with a recognized workflow
License
Elastic License v2(external, opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
endgame-*logs-crowdstrike.fdr*logs-endpoint.events.process-*logs-m365_defender.event-*logs-sentinel_one_cloud_funnel.*logs-system.security*logs-windows.forwarded*logs-windows.sysmon_operational-*winlogbeat-*
Related Integrations

endpoint(external, opens in a new tab or window)

windows(external, opens in a new tab or window)

system(external, opens in a new tab or window)

m365_defender(external, opens in a new tab or window)

sentinel_one_cloud_funnel(external, opens in a new tab or window)

crowdstrike(external, opens in a new tab or window)

Query
text code block:
process where host.os.type == "windows" and event.type == "start" and
 process.name : ("cmd.exe", "powershell.exe", "conhost.exe", "wscript.exe", "mshta.exe", "curl.exe", "msiexec.exe", "bitsadmin.exe", "net.exe") and
 process.command_line : ("*trycloudflare.com*", "*@SSL\\*", "*\\webdav\\*", "*\\DavWWWRoot\\*", "*\\\\*.*@8080\\*", "*\\\\*.*@80\\*", "*\\\\*.*@8443\\*", "*\\\\*.*@443\\*") and
 not (process.name : "cmd.exe" and process.args : "\\\\?\\UNC\\*.sharepoint.com@SSL\\DavWWWRoot\\*")

Install detection rules in Elastic Security

Detect Suspicious Execution from a WebDav Share in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(external, opens in a new tab or window).