Data Exfiltration to WebDAV Share via curl Upload

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-07-12
Updated
2026-08-28

ATT&CK techniques

Exfiltration
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Impact

What it detects

This rule detects curl uploading a file to a remote WebDAV endpoint using the upload flag. RedCurl uses this method to stage stolen data and logs to attacker controlled Nextcloud style cloud storage.

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Data Exfiltration to WebDAV Share via curl Upload
Pivot detection · T1567.002 · 9 related

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