Sigma rule: Possible Impacket SecretDump Remote Activity - Zeek

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-b0ee85e565cc, updated 2021-11-27T00:00:00.000Z.

Rule

Title
Possible Impacket SecretDump Remote Activity - Zeek
Status
test
Level
high
Author
Samir Bousseaden, @neu5ron
Date
2020-03-19
Modified
2021-11-27
File
rules/network/zeek/zeek_smb_converted_win_impacket_secretdump.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detect AD credential dumping using impacket secretdump HKTL. Based on the SIGMA rules/windows/builtin/win_impacket_secretdump.yml

Log source

product
zeek
service
smb_files

Detection

selection:
    path|contains|all:
        - '\'
        - 'ADMIN$'
    name|contains: 'SYSTEM32\'
    name|endswith: '.tmp'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.credential-access
  • attack.t1003.002
  • attack.t1003.004
  • attack.t1003.003

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/network/zeek/zeek_smb_converted_win_impacket_secretdump.yml

Sources and licences

  • SigmaHQ

    "Possible Impacket SecretDump Remote Activity - Zeek" by Samir Bousseaden, @neu5ron (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/network/zeek/zeek_smb_converted_win_impacket_secretdump.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Possible Impacket SecretDump Remote Activity - Zeek",
entity page, dataset version ref-b0ee85e565cc, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/92dae1ed-1c9d-4eff-a567-33acbd95b00e (accessed 2026-11-03).
Underlying source: SigmaHQ rule 92dae1ed-1c9d-4eff-a567-33acbd95b00e, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.