title: NotPetya Ransomware Activity
id: 79aeeb41-8156-4fac-a0cd-076495ab82a1
status: test
description: Detects NotPetya ransomware activity in which the extracted passwords are passed back to the main module via named pipe, the file system journal of drive C is deleted and windows eventlogs are cleared using wevtutil
references:
    - https://securelist.com/schroedingers-petya/78870/
    - https://www.hybrid-analysis.com/sample/64b0b58a2c030c77fdb2b537b2fcc4af432bc55ffb36599a31d418c7c69e94b1?environmentId=100
author: Florian Roth (Nextron Systems), Tom Ueltschi
date: 2019/01/16
modified: 2022/12/15
tags:
    - attack.defense_evasion
    - attack.t1218.011
    - attack.t1070.001
    - attack.credential_access
    - attack.t1003.001
    - car.2016-04-002
logsource:
    category: process_creation
    product: windows
detection:
    selection_pattern:
        CommandLine|contains:
            - 'wevtutil cl Application & fsutil usn deletejournal /D C:'
            - 'dllhost.dat %WINDIR%\ransoms'
    selection_rundll32_dash1:
        Image|endswith: '\rundll32.exe'
        CommandLine|endswith:
            - '.dat,#1'
            - '.dat #1' # Sysmon removes comma
            - '.zip.dll",#1'
    selection_perfc_keyword:
        - '\perfc.dat'
    condition: 1 of selection*
fields:
    - CommandLine
    - ParentCommandLine
falsepositives:
    - Unknown
level: critical