Kapeka Backdoor Configuration Persistence

 1title: Kapeka Backdoor Configuration Persistence
 2id: cbaa3ef3-07a9-4c8e-82d1-9e40578da7fd
 3status: experimental
 4description: |
 5    Detects registry set activity of a value called "Seed" stored in the "\Cryptography\Providers\" registry key.
 6    The Kapeka backdoor leverages this location to register a new SIP provider for backdoor configuration persistence.    
 7references:
 8    - https://labs.withsecure.com/publications/kapeka
 9    - https://app.any.run/tasks/1efb3ed4-cc0f-4690-a0ed-24516809bc72/
10author: Swachchhanda Shrawan Poudel
11date: 2024-07-03
12tags:
13    - attack.persistence
14    - attack.defense-evasion
15    - attack.t1553.003
16logsource:
17    category: registry_set
18    product: windows
19detection:
20    selection:
21        TargetObject|contains: '\SOFTWARE\Microsoft\Cryptography\Providers\{'
22        TargetObject|endswith: '\Seed'
23    filter_main_empty:
24        Details|contains: '(Empty)'
25    condition: selection and not 1 of filter_main_*
26falsepositives:
27    - Unknown
28level: medium

References

• Kapeka: A novel backdoor spotted in Eastern Europe

  

  This report provides an in-depth technical analysis of the backdoor and its capabilities, and analyzes the connection between Kapeka and Sandworm group. The purpose of this report is to raise awareness amongst businesses, governments, and the broader security community. WithSecure has engaged governments and select customers with advanced copies of this report. In addition to the report, we are releasing several artifacts developed as a result of our research, including a registry-based & hardcoded configuration extractor, a script to decrypt and emulate the backdoor’s network communication, and as might be expected, a list of indicators of compromise, YARA rules, and MITRE ATT&CK mapping

  
  Read More

• Analysis bd07fb1e9b4768e7202de6cc454c78c6891270af02085c51fce5539db1386c3f (MD5: 50B5582904FE34451F5CB2362E11CB24) Malicious activity - Interactive analysis ANY.RUN

  

  Interactive malware hunting service. Live testing of most type of threats in any environments. No installation and no waiting necessary.

  
  Read More

Related rules

• Persistence Via New SIP Provider
• Abuse of Service Permissions to Hide Services Via Set-Service
• Abuse of Service Permissions to Hide Services Via Set-Service - PS
• Account Tampering - Suspicious Failed Logon Reasons
• Activity From Anonymous IP Address