sigmahighHunting

HackTool - Impacket File Indicators

Detects file creation events with filename patterns used by Impacket.

MITRE ATT&CK

credential-access

Detection Query

selection_names_re:
  TargetFilename|re: \\sessionresume_[a-zA-Z]{8}$
condition: selection_names_re

Author

The DFIR Report, IrishDeath

Created

2025-05-19

Data Sources

windowsFile Events

Platforms

windows

References

Tags

attack.credential-accessattack.t1003.001

Raw Content

title: HackTool - Impacket File Indicators
id: 03f4ca17-de95-428d-a75a-4ee78b047256
related:
    - id: 6e2a900a-ced9-4e4a-a9c2-13e706f9518a
      type: similar
status: experimental
description: Detects file creation events with filename patterns used by Impacket.
references:
    - https://thedfirreport.com/2025/05/19/another-confluence-bites-the-dust-falling-to-elpaco-team-ransomware/
    - https://github.com/fortra/impacket
author: "The DFIR Report, IrishDeath"
date: 2025-05-19
tags:
    - attack.credential-access
    - attack.t1003.001
logsource:
    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
falsepositives:
    - Unknown
level: high