RedCurl QWCrypt Ransomware Execution with Hyper-V Targeting Flags

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-07-06
Updated
2026-08-28

ATT&CK techniques

Impact
  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. Exfiltration

What it detects

This rule detects the QWCrypt ransomware binary launched with its distinctive command line flags that target Hyper-V virtual machines while excluding gateway hosts and disabling shadow copies during encryption.

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Malicious Shadow Copy Deletion via WMIC via Process Creation (via process_creation)
Suspicious Anti-Recovery Zeroing via fsutil setZeroData (via process_creation)
Malicious Shadow Copy Removal via WMI PowerShell
RedCurl QWCrypt Ransomware Execution with Hyper-V Targeting Flags
Pivot detection · T1490 · 9 related

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