Sigma rule: HackTool - Impacket File Indicators

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-d97cdee0635f, updated 2025-05-19T00:00:00.000Z.

Rule

Title
HackTool - Impacket File Indicators
Status
experimental
Level
high
Author
The DFIR Report, IrishDeath
Date
2025-05-19
File
rules/windows/file/file_event/file_event_win_impacket_file_indicators.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects file creation events with filename patterns used by Impacket.

Log source

product
windows
category
file_event

Detection

selection_names_re:
    TargetFilename|re: '\\sessionresume_[a-zA-Z]{8}$' # https://github.com/fortra/impacket/blob/ead516a1209742efc7ac550707a9304ba08681e9/impacket/examples/secretsdump.py#L1925C38-L1925C51
condition: selection_names_re

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.credential-access
  • attack.t1003.001

MITRE ATT&CK ids this rule names

Related rules

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/windows/file/file_event/file_event_win_impacket_file_indicators.yml

Sources and licences

  • SigmaHQ

    "HackTool - Impacket File Indicators" by The DFIR Report, IrishDeath (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_impacket_file_indicators.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: HackTool - Impacket File Indicators",
entity page, dataset version ref-d97cdee0635f, updated 2025-05-19T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/03f4ca17-de95-428d-a75a-4ee78b047256 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 03f4ca17-de95-428d-a75a-4ee78b047256, 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.