Malicious WDigest UseLogonCredential Enabled for Cleartext Credential Caching

PremiumReviewedSigma · High · v1
Category
registry_set
Author
HuntRule
Published
2026-05-22
Updated
2026-08-28

ATT&CK techniques

Persistence → Cred Access
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Priv Esc

  6. Defense Evasion

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects the WDigest UseLogonCredential registry value being set to 1, forcing Windows to cache plaintext credentials in memory as documented by Huntress. Attackers enable this setting before dumping LSASS so that cleartext passwords are recoverable. This modification undermines credential protection and is a strong precursor to credential harvesting.

Related detections9 linkedT1003.001 — drag to rearrange
Malicious WDigest UseLogonCredential Enabled for Cleartext Credential Theft (via registry_set)
Malicious Restricted Admin Mode Enabled for Pass-the-Hash RDP
Malicious WDigest Credential Caching Enabled via Registry (via registry_set)
Malicious WDigest UseLogonCredential Enablement For Credential Theft
Malicious LSASS Credential Dump via Rundll32 Comsvcs MiniDump via Process Creation (via process_creation)
Suspicious LSASS Credential Access via PowerShell (via process_creation)
Suspicious LSASS Memory Dump via Task Manager After Ivanti Exploitation
Suspicious ProcDump LSASS Memory Dump via process_creation
Malicious Mimikatz Credential Dump Log File Creation (via file_event)
Malicious WDigest UseLogonCredential Enabled for Cleartext Credential Caching
Pivot detection · T1003.001 · 9 related

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