Operation Wocao Activity

 1title: Operation Wocao Activity
 2id: 1cfac73c-be78-4f9a-9b08-5bde0c3953ab
 3related:
 4    - id: 74ad4314-482e-4c3e-b237-3f7ed3b9ca8d
 5      type: derived
 6status: test
 7description: Detects activity mentioned in Operation Wocao report
 8references:
 9    - https://www.fox-it.com/en/news/whitepapers/operation-wocao-shining-a-light-on-one-of-chinas-hidden-hacking-groups/
10    - https://twitter.com/SBousseaden/status/1207671369963646976
11author: Florian Roth (Nextron Systems), frack113
12date: 2019/12/20
13modified: 2022/10/09
14tags:
15    - attack.discovery
16    - attack.t1012
17    - attack.defense_evasion
18    - attack.t1036.004
19    - attack.t1027
20    - attack.execution
21    - attack.t1053.005
22    - attack.t1059.001
23    - detection.emerging_threats
24logsource:
25    category: process_creation
26    product: windows
27    definition: The 'System Security Extension' audit subcategory need to be enabled to log the EID 4697
28detection:
29    selection:
30        CommandLine|contains:
31            - 'checkadmin.exe 127.0.0.1 -all'
32            - 'netsh advfirewall firewall add rule name=powershell dir=in'
33            - 'cmd /c powershell.exe -ep bypass -file c:\s.ps1'
34            - '/tn win32times /f'
35            - 'create win32times binPath='
36            - '\c$\windows\system32\devmgr.dll'
37            - ' -exec bypass -enc JgAg'
38            - 'type *keepass\KeePass.config.xml'
39            - 'iie.exe iie.txt'
40            - 'reg query HKEY_CURRENT_USER\Software\\*\PuTTY\Sessions\'
41    condition: selection
42falsepositives:
43    - Administrators that use checkadmin.exe tool to enumerate local administrators
44level: high