rules/windows/process_creation/proc_creation_win_malware_ryuk.yml

title: Ryuk Ransomware
id: c37510b8-2107-4b78-aa32-72f251e7a844
status: test
description: Detects Ryuk ransomware activity
author: Florian Roth
references:
  - https://app.any.run/tasks/d860402c-3ff4-4c1f-b367-0237da714ed1/
date: 2019/12/16
modified: 2021/11/27
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    CommandLine|contains|all:
      - 'Microsoft\Windows\CurrentVersion\Run'
      - 'C:\users\Public\'
  condition: selection
fields:
  - CommandLine
  - ParentCommandLine
falsepositives:
  - Unlikely
level: critical
tags:
  - attack.persistence
  - attack.t1547.001
rule: ryuk ransomware 2019-12-16 20:33:12 +01:00			`title: Ryuk Ransomware`
			`id: c37510b8-2107-4b78-aa32-72f251e7a844`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`status: test`
rule: ryuk ransomware 2019-12-16 20:33:12 +01:00			`description: Detects Ryuk ransomware activity`
			`author: Florian Roth`
			`references:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- https://app.any.run/tasks/d860402c-3ff4-4c1f-b367-0237da714ed1/`
			`date: 2019/12/16`
			`modified: 2021/11/27`
rule: ryuk ransomware 2019-12-16 20:33:12 +01:00			`logsource:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`category: process_creation`
			`product: windows`
rule: ryuk ransomware 2019-12-16 20:33:12 +01:00			`detection:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`selection:`
			`CommandLine\|contains\|all:`
			`- 'Microsoft\Windows\CurrentVersion\Run'`
			`- 'C:\users\Public\'`
			`condition: selection`
rule: ryuk ransomware 2019-12-16 20:33:12 +01:00			`fields:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- CommandLine`
			`- ParentCommandLine`
rule: ryuk ransomware 2019-12-16 20:33:12 +01:00			`falsepositives:`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`- Unlikely`
rule: ryuk ransomware 2019-12-16 20:33:12 +01:00			`level: critical`
$frack113$ Change status for old rules 2021-11-27 11:33:14 +01:00			`tags:`
			`- attack.persistence`
			`- attack.t1547.001`