Potential APT FIN7 Reconnaissance/POWERTRASH Related Activity

calendar Aug 12, 2024 · attack.execution attack.g0046 detection.emerging-threats  ·
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Detects specific command line execution used by FIN7 as reported by WithSecureLabs for reconnaissance and POWERTRASH execution

Sigma rule (View on GitHub)

 1title: Potential APT FIN7 Reconnaissance/POWERTRASH Related Activity
 2id: 911389c7-5ae3-43ea-bab3-a947ebdeb85e
 3status: test
 4description: Detects specific command line execution used by FIN7 as reported by WithSecureLabs for reconnaissance and POWERTRASH execution
 5references:
 6    - https://labs.withsecure.com/publications/fin7-target-veeam-servers
 7    - https://labs.withsecure.com/publications/fin7-target-veeam-servers/jcr:content/root/responsivegrid/responsivegrid/responsivegrid/image_253944286.img.png/1682500394900.png
 8    - https://github.com/WithSecureLabs/iocs/blob/344203de742bb7e68bd56618f66d34be95a9f9fc/FIN7VEEAM/iocs.csv
 9author: Nasreddine Bencherchali (Nextron Systems)
10date: 2023-05-04
11tags:
12    - attack.execution
13    - attack.g0046
14    - detection.emerging-threats
15logsource:
16    category: process_creation
17    product: windows
18detection:
19    selection_1:
20        CommandLine|contains|all:
21            - '-noni -nop -exe bypass -f \\\\'
22            - 'ADMIN$'
23    selection_2:
24        CommandLine|contains|all:
25            - '-ex bypass -noprof -nolog -nonint -f'
26            - 'C:\Windows\Temp\'
27    condition: 1 of selection_*
28falsepositives:
29    - Unlikely
30level: high

References

  • FIN7 tradecraft seen in attacks against Veeam backup servers

    WithSecure Intelligence identified attacks which occurred in late March 2023 against internet-facing servers running Veeam Backup & Replication software. Our research indicates that the intrusion set used in these attacks has overlaps with those attributed to the FIN7 activity group. It is likely that initial access & execution was achieved through a recently patched Veeam Backup & Replication vulnerability, CVE-2023-27532.


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  • ‰PNG  IHDR5Hzˆ§€IDATx^ìÝgp$ç�çyi.vbïæÍÅÜ›3{·wq·³Ü�Ѭ43«‘�¼(Š¢H‘¢÷l6ÛÒµ÷m´Ðð¾á½÷Þ{ï½÷(øBPøÞ“UÛ†-MÏ�ìþ"*¢‘•ùdVšÇü*³úóóóÔÔÔ „B!„BˆÇ×7$B!„B!!„B!„O „B!„Bˆ'€B!„B!Ä@!„B...


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  • iocs/FIN7VEEAM/iocs.csv at 344203de742bb7e68bd56618f66d34be95a9f9fc · WithSecureLabs/iocs

    Contribute to WithSecureLabs/iocs development by creating an account on GitHub.


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