DarkGate - Drop DarkGate Loader In C:\Temp Directory

 1title: DarkGate - Drop DarkGate Loader In C:\Temp Directory
 2id: df49c691-8026-48dd-94d3-4ba6a79102a8
 3status: experimental
 4description: Detects attackers attempting to save, decrypt and execute the DarkGate Loader in C:\temp folder.
 5references:
 6    - https://www.bleepingcomputer.com/news/security/hackers-exploit-windows-smartscreen-flaw-to-drop-darkgate-malware/
 7    - https://www.trendmicro.com/en_us/research/24/c/cve-2024-21412--darkgate-operators-exploit-microsoft-windows-sma.html
 8author: Tomasz Dyduch, Josh Nickels
 9date: 2024/05/31
10tags:
11    - attack.execution
12    - attack.t1059
13logsource:
14    category: file_event
15    product: windows
16detection:
17    selection_filename_suffix:
18        TargetFilename|contains: ':\temp\'
19        TargetFilename|endswith:
20            - '.au3'
21            - '\autoit3.exe'
22    selection_image_suffix:
23        Image|contains: ':\temp\'
24        Image|endswith:
25            - '.au3'
26            - '\autoit3.exe'
27    condition: 1 of selection_*
28falsepositives:
29    - Unlikely legitimate usage of AutoIT in temp folders.
30level: medium

References

• Hackers exploit Windows SmartScreen flaw to drop DarkGate malware

  

  A new wave of attacks by the DarkGate malware operation exploits a now-fixed Windows Defender SmartScreen vulnerability to bypass security checks and automatically install fake software installers.

  
  Read More

• CVE-2024-21412: DarkGate Operators Exploit Microsoft Windows SmartScreen Bypass in Zero-Day Campaign

  

  The decrypted request content is as follows: 1000|87|283|Yes|6.1.7|||" Conclusion In this research, a follow-up to our Water Hydra APT Zero Day campaign analysis, we explored how the DarkGate opera...

  
  Read More

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