Suspicious Rclone Exfiltration via Masqueraded svchost Process Creation

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-10-14
Updated
2026-10-14

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 a process masquerading as svchost through typosquatted names running Rclone-style transfer arguments, a data exfiltration technique used by Storm-0501 to move stolen files to attacker cloud storage. Renaming Rclone to svhost.exe or scvhost.exe is an attempt to hide exfiltration behind a trusted-looking Windows binary name.

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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.