Blackbyte Ransomware Registry

Aug 17, 2023 · attack.defense_evasion attack.t1112 ·

BlackByte set three different registry values to escalate privileges and begin setting the stage for lateral movement and encryption

Sigma rule (View on GitHub)

 1title: Blackbyte Ransomware Registry
 2id: 83314318-052a-4c90-a1ad-660ece38d276
 3status: test
 4description: BlackByte set three different registry values to escalate privileges and begin setting the stage for lateral movement and encryption
 5references:
 6    - https://redcanary.com/blog/blackbyte-ransomware/?utm_source=twitter&utm_medium=social
 7    - https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/blackbyte-ransomware-pt-1-in-depth-analysis/
 8author: frack113
 9date: 2022/01/24
10modified: 2023/08/17
11tags:
12    - attack.defense_evasion
13    - attack.t1112
14logsource:
15    category: registry_set
16    product: windows
17detection:
18    selection:
19        TargetObject:
20            - HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\LocalAccountTokenFilterPolicy
21            - HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections
22            - HKLM\SYSTEM\CurrentControlSet\Control\FileSystem\LongPathsEnabled
23        Details: DWORD (0x00000001)
24    condition: selection
25falsepositives:
26    - Unknown
27level: high

References

ProxyShell exploitation leads to BlackByte ransomware - Red Canary

BlackByte ransomware leverages ProxyShell Microsoft Exchange vulnerabilities for initial access and Cobalt Strike for lateral movement.

Read More
BlackByte Ransomware – Pt. 1 In-depth Analysis | Trustwave

During a recent malware incident response case, we encountered an interesting piece of ransomware that goes by the name of BlackByte.

Read More

Blackbyte Ransomware Registry

Sigma rule (View on GitHub)

References

ProxyShell exploitation leads to BlackByte ransomware - Red Canary

BlackByte Ransomware – Pt. 1 In-depth Analysis | Trustwave

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