Windows Process Creation: Impacket HackTool Binary Execution via Named Image Matches

Flags execution of Windows impacket compiled binaries based on distinctive tool names in the process Image.

FreeReviewedSigma · High · v2
Product
windows
Category
process_creation
Author
Florian Roth (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2021-07-24
Updated
2026-07-31
title: "Windows Process Creation: Impacket HackTool Binary Execution via Named Image Matches"
id: 5ede2014-9589-4a8d-838e-30a1ad91baf2
status: test
description: This rule flags Windows process executions where the process image path contains known Impacket utility component names (e.g., goldenPac, secretsdump, ntlmrelayx) or ends with specific Impacket executable filenames. Attackers may use these compiled tool binaries to automate credential access, lateral movement, and service interaction. The detection relies on process creation telemetry with the executable image path to match these string patterns, which may generate false positives if impacket tools are used legitimately.
references:
  - https://github.com/ropnop/impacket_static_binaries/releases/tag/0.9.21-dev-binaries
  - https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_hktl_impacket_tools.yml
author: Florian Roth (Nextron Systems), Huntrule Team
date: 2021-07-24
modified: 2023-02-07
tags:
  - attack.collection
  - attack.execution
  - attack.credential-access
  - attack.t1557.001
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    - Image|contains:
        - \goldenPac
        - \karmaSMB
        - \kintercept
        - \ntlmrelayx
        - \rpcdump
        - \samrdump
        - \secretsdump
        - \smbexec
        - \smbrelayx
        - \wmiexec
        - \wmipersist
    - Image|endswith:
        - \atexec_windows.exe
        - \dcomexec_windows.exe
        - \dpapi_windows.exe
        - \findDelegation_windows.exe
        - \GetADUsers_windows.exe
        - \GetNPUsers_windows.exe
        - \getPac_windows.exe
        - \getST_windows.exe
        - \getTGT_windows.exe
        - \GetUserSPNs_windows.exe
        - \ifmap_windows.exe
        - \mimikatz_windows.exe
        - \netview_windows.exe
        - \nmapAnswerMachine_windows.exe
        - \opdump_windows.exe
        - \psexec_windows.exe
        - \rdp_check_windows.exe
        - \sambaPipe_windows.exe
        - \smbclient_windows.exe
        - \smbserver_windows.exe
        - \sniff_windows.exe
        - \sniffer_windows.exe
        - \split_windows.exe
        - \ticketer_windows.exe
  condition: selection
falsepositives:
  - Legitimate use of the impacket tools
level: high
license: DRL-1.1
related:
  - id: 4627c6ae-6899-46e2-aa0c-6ebcb1becd19
    type: derived