Sigma rule: Potential APT FIN7 Exploitation Activity

Rule

Title

Potential APT FIN7 Exploitation Activity

Status

test

Level

medium

Author

Alex Walston (@4ayymm)

Date

2024-07-29

File

rules-emerging-threats/2024/TA/FIN7/proc_creation_win_apt_fin7_exploitation_indicators.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential APT FIN7 exploitation activity as reported by Google.
In order to obtain initial access, FIN7 used compromised Remote Desktop Protocol (RDP) credentials to login to a target server and initiate specific Windows process chains.

Log source

product

windows

category

process_creation

Detection

selection_notepad_plus:
    ParentImage|endswith: '\notepad++.exe'
    Image|endswith: '\cmd.exe'
selection_rdpinit:
    ParentImage|endswith: '\rdpinit.exe'
    Image|endswith: '\notepad++.exe'
condition: 1 of selection_*

False positives (as the rule lists them)

• Notepad++ can legitimately spawn cmd (Open Containing Folder in CMD)

Tags

• attack.execution
• attack.t1059.001
• attack.t1059.003
• detection.emerging-threats

MITRE ATT&CK ids this rule names

• T1059.001
• T1059.003

References

• https://cloud.google.com/blog/topics/threat-intelligence/evolution-of-fin7/

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2024/TA/FIN7/proc_creation_win_apt_fin7_exploitation_indicators.yml