Malicious Dump File Transfered via SMB Share (via security)

PremiumReviewedSigma · High · v1
Product
windows
Service
security
Author
HuntRule
Published
2026-11-07
Updated
2026-11-07

ATT&CK techniques

Cred Access
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects would access and/or transfer a dump file containing potential sensitive information (LSASS dump).

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Malicious PowerDump Credential Extraction via PowerShell
Malicious LSASS Credential Dump via rundll32 comsvcs.dll (via process_creation)
Malicious LSASS Memory Dump via rundll32 comsvcs MiniDump in tasklist For-Loop (via process_creation)
Malicious Mimikatz Credential Dumping via Command Line Arguments
Malicious Credential Extraction via Volatility Memory Analysis (via process_creation)
Suspicious Physical Memory Acquisition via WinPmem (via process_creation)
Malicious LSASS Credential Dump via Rundll32 Comsvcs MiniDump via Process Creation (via process_creation)
Malicious Dump File Transfered via SMB Share (via security)
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.