Winnti Malware HK University Campaign

 1title: Winnti Malware HK University Campaign
 2id: 3121461b-5aa0-4a41-b910-66d25524edbb
 3status: test
 4description: Detects specific process characteristics of Winnti malware noticed in Dec/Jan 2020 in a campaign against Honk Kong universities
 5references:
 6    - https://www.welivesecurity.com/2020/01/31/winnti-group-targeting-universities-hong-kong/
 7author: Florian Roth (Nextron Systems), Markus Neis
 8date: 2020-02-01
 9modified: 2021-11-27
10tags:
11    - attack.privilege-escalation
12    - attack.persistence
13    - attack.execution
14    - attack.stealth
15    - attack.t1574.001
16    - attack.g0044
17    - detection.emerging-threats
18logsource:
19    category: process_creation
20    product: windows
21detection:
22    selection1:
23        ParentImage|contains:
24            - 'C:\Windows\Temp'
25            - '\hpqhvind.exe'
26        Image|startswith: 'C:\ProgramData\DRM'
27    selection2:
28        ParentImage|startswith: 'C:\ProgramData\DRM'
29        Image|endswith: '\wmplayer.exe'
30    selection3:
31        ParentImage|endswith: '\Test.exe'
32        Image|endswith: '\wmplayer.exe'
33    selection4:
34        Image: 'C:\ProgramData\DRM\CLR\CLR.exe'
35    selection5:
36        ParentImage|startswith: 'C:\ProgramData\DRM\Windows'
37        Image|endswith: '\SearchFilterHost.exe'
38    condition: 1 of selection*
39falsepositives:
40    - Unlikely
41level: critical