HackTool - Pypykatz Credentials Dumping Activity — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: high. Source dates: 2022-01-05 / 2023-02-05.

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

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 36f7b3a60daa510a75cc63c7dda2486004ead49d22b1707f1925a0efe1a25672

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 - Pypykatz Credentials Dumping Activity
id: a29808fd-ef50-49ff-9c7a-59a9b040b404
status: test
description: Detects the usage of "pypykatz" to obtain stored credentials. Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database through Windows registry where the SAM database is stored
references:
    - https://github.com/skelsec/pypykatz
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1003.002/T1003.002.md#atomic-test-2---registry-parse-with-pypykatz
author: frack113
date: 2022-01-05
modified: 2023-02-05
tags:
    - attack.credential-access
    - attack.t1003.002
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith:
            - \pypykatz.exe
            - \python.exe
        CommandLine|contains|all:
            - 'live'
            - 'registry'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/skelsec/pypykatz
• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1003.002/T1003.002.md#atomic-test-2---registry-parse-with-pypykatz