Malicious WSH Script Execution from WebDAV Share (via process_creation)

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-05-10
Updated
2026-08-28

ATT&CK techniques

Execution → C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. Exfiltration

  12. Impact

What it detects

This rule detects wscript.exe or cscript.exe executing a script hosted on a remote WebDAV share as shown by the DavWWWRoot path token, a delivery method abused through malicious URL and LNK files pointing at Cloudflare tunnel WebDAV servers. Script execution directly from a WebDAV UNC path is rarely legitimate.

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Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.