HackTool - Koadic Execution — Sigma Rule

Rule metadata and linked tags

Author: wagga, Jonhnathan Ribeiro, oscd.community. Source status: test; severity: high. Source dates: 2020-01-12 / 2023-02-11.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 4fc39d270a6162dfb33167e44a31380784ed95962898714d95becb9dbed9645c

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 - Koadic Execution
id: 5cddf373-ef00-4112-ad72-960ac29bac34
status: test
description: Detects command line parameters used by Koadic hack tool
references:
    - https://unit42.paloaltonetworks.com/unit42-sofacy-groups-parallel-attacks/
    - https://github.com/offsecginger/koadic/blob/457f9a3ff394c989cdb4c599ab90eb34fb2c762c/data/stager/js/stdlib.js
    - https://blog.f-secure.com/hunting-for-koadic-a-com-based-rootkit/
author: wagga, Jonhnathan Ribeiro, oscd.community
date: 2020-01-12
modified: 2023-02-11
tags:
    - attack.execution
    - attack.t1059.003
    - attack.t1059.005
    - attack.t1059.007
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\cmd.exe'
        - OriginalFileName: 'Cmd.Exe'
    selection_cli:
        CommandLine|contains|all:
            - '/q'
            - '/c'
            - 'chcp'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://unit42.paloaltonetworks.com/unit42-sofacy-groups-parallel-attacks/
• https://github.com/offsecginger/koadic/blob/457f9a3ff394c989cdb4c599ab90eb34fb2c762c/data/stager/js/stdlib.js
• https://blog.f-secure.com/hunting-for-koadic-a-com-based-rootkit/