huntrule

Windows File Creation of Dumpert Default Dump (dumpert.dmp)

Alerts on creation of Dumpert’s default "dumpert.dmp" dump file on Windows.

FreeReviewedSigma · Critical · v2
Product
windows
Category
file_event
Author
Florian Roth (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2020-02-04
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

Cred Access

  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

  14. Impact

What it detects

This rule flags creation of the default memory dump file named dumpert.dmp on Windows, which is associated with Dumpert process dumping activity targeting LSASS memory. Attackers may use process dump files to extract credentials from memory, making this file creation a high-signal credential access artifact. It relies on file event telemetry that records when a file is created with a filename ending in dumpert.dmp.

Reporting behind it

Related detections9 linkedT1003.001 — drag to rearrange
Malicious WDigest Credential Caching Enabled via Registry (via registry_set)
Malicious Credential Dumping via Mimikatz Sekurlsa Command
Malicious Mimikatz Sekurlsa Logonpasswords Credential Dump
Malicious LSASS Credential Dump via ProcDump (via process_creation)
Malicious LSASS Memory Dump via comsvcs.dll by Salt Typhoon
Malicious LSASS Dump via Process Access (via process_access)
Malicious LSASS Credential Dump with LSASSY - Process (via process_creation)
Malicious LSASS Credential Dump with LSASSY - Admin Share (via security)
Malicious Task Manager Used for LSASS Dump - Kernel (via security)
Windows File Creation of Dumpert Default Dump (dumpert.dmp)
Pivot detection · T1003.001 · 9 related

Changelog

v2
  1. v2
    Candidate ingested via manual entry.2026-07-31
  2. v1
    No changelog recorded for this version.2026-07-30

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