HackTool - Inveigh Execution Artefacts — Sigma Rule

Rule metadata and linked tags

Author: Nasreddine Bencherchali (Nextron Systems). Source status: test; severity: critical. Source dates: 2022-10-24 / 2024-06-27.

{
  "product": "windows",
  "category": "file_event"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: f8db50c45272d8ea625767901280f58d24686e7ce0febcf420420b89f8710770

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: HackTool - Inveigh Execution Artefacts
id: bb09dd3e-2b78-4819-8e35-a7c1b874e449
status: test
description: Detects the presence and execution of Inveigh via dropped artefacts
references:
    - https://github.com/Kevin-Robertson/Inveigh/blob/29d9e3c3a625b3033cdaf4683efaafadcecb9007/Inveigh/Support/Output.cs
    - https://github.com/Kevin-Robertson/Inveigh/blob/29d9e3c3a625b3033cdaf4683efaafadcecb9007/Inveigh/Support/Control.cs
    - https://thedfirreport.com/2020/11/23/pysa-mespinoza-ransomware/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-10-24
modified: 2024-06-27
tags:
    - attack.command-and-control
    - attack.t1219.002
logsource:
    product: windows
    category: file_event
detection:
    selection:
        TargetFilename|endswith:
            - '\Inveigh-Log.txt'
            - '\Inveigh-Cleartext.txt'
            - '\Inveigh-NTLMv1Users.txt'
            - '\Inveigh-NTLMv2Users.txt'
            - '\Inveigh-NTLMv1.txt'
            - '\Inveigh-NTLMv2.txt'
            - '\Inveigh-FormInput.txt'
            - '\Inveigh.dll'
            - '\Inveigh.exe'
            - '\Inveigh.ps1'
            - '\Inveigh-Relay.ps1'
    condition: selection
falsepositives:
    - Unlikely
level: critical

Original YAML and metadata in JSON

False positives

• Unlikely

Source references

• https://github.com/Kevin-Robertson/Inveigh/blob/29d9e3c3a625b3033cdaf4683efaafadcecb9007/Inveigh/Support/Output.cs
• https://github.com/Kevin-Robertson/Inveigh/blob/29d9e3c3a625b3033cdaf4683efaafadcecb9007/Inveigh/Support/Control.cs
• https://thedfirreport.com/2020/11/23/pysa-mespinoza-ransomware/