title: Operation Wocao Activity
id: 1cfac73c-be78-4f9a-9b08-5bde0c3953ab
related:
- id: 74ad4314-482e-4c3e-b237-3f7ed3b9ca8d
type: derived
status: test
description: Detects activity mentioned in Operation Wocao report
references:
- https://www.fox-it.com/en/news/whitepapers/operation-wocao-shining-a-light-on-one-of-chinas-hidden-hacking-groups/
- https://twitter.com/SBousseaden/status/1207671369963646976
author: Florian Roth (Nextron Systems), frack113
date: 2019-12-20
modified: 2022-10-09
tags:
- attack.privilege-escalation
- attack.persistence
- attack.discovery
- attack.stealth
- attack.t1012
- attack.t1036.004
- attack.t1027
- attack.execution
- attack.t1053.005
- attack.t1059.001
- detection.emerging-threats
logsource:
category: process_creation
product: windows
definition: The 'System Security Extension' audit subcategory need to be enabled to log the EID 4697
detection:
selection:
CommandLine|contains:
- 'checkadmin.exe 127.0.0.1 -all'
- 'netsh advfirewall firewall add rule name=powershell dir=in'
- 'cmd /c powershell.exe -ep bypass -file c:\s.ps1'
- '/tn win32times /f'
- 'create win32times binPath='
- '\c$\windows\system32\devmgr.dll'
- ' -exec bypass -enc JgAg'
- 'type *keepass\KeePass.config.xml'
- 'iie.exe iie.txt'
- 'reg query HKEY_CURRENT_USER\Software\\*\PuTTY\Sessions\'
condition: selection
falsepositives:
- Administrators that use checkadmin.exe tool to enumerate local administrators
level: high