FunkLocker Ransomware File Creation
Detects the creation of files with the ".funksec" extension, which is appended to encrypted files by the FunkLocker ransomware.
Detection logic
selection
TargetFilename|endswith: .funksecCondition
selectionRaw YAML
title: FunkLocker Ransomware File Creation
id: 2c76a22b-702d-48fd-8fa9-e41e2fe203b3
status: experimental
description: Detects the creation of files with the ".funksec" extension, which is appended to encrypted files by the FunkLocker ransomware.
references:
- https://www.broadcom.com/support/security-center/protection-bulletin/funksec-ransomware
- https://www.pcrisk.com/removal-guides/31853-funklocker-funksec-ransomware
author: Saiprashanth Pulisetti ( @Prashanthblogs)
date: 2025-08-08
tags:
- attack.impact
- attack.t1486
- detection.emerging-threats
logsource:
category: file_event
product: windows
detection:
selection:
TargetFilename|endswith: '.funksec'
condition: selection
falsepositives:
- Unlikely
level: highFalse positives
- Unlikely