ANY.RUN Exposes FunkLocker: AI-Generated Ransomware Threatens Global Organizations
DUBAI, DUBAI, UNITED ARAB EMIRATES, October 1, 2025 /EINPresswire.com/ -- ANY.RUN, a leading provider of interactive malware analysis and threat intelligence solutions, has released new research on FunkLocker, a ransomware strain developed by the FunkSec group with the aid of artificial intelligence. The findings highlight how AI-assisted coding is shaping the evolution of ransomware while also leaving behind exploitable weaknesses.
๐๐โ๐ฌ ๐๐จ๐ฅ๐ ๐ข๐ง ๐
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FunkLocker exhibits development patterns consistent with AI-generated code snippets combined into a single build, producing rapid variants that range from barely functional to more feature-rich versions containing anti-virtualization checks.
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The analysis identifies the following core behaviors that define FunkLockerโs operations:
โ ๐๐-๐๐ฌ๐ฌ๐ข๐ฌ๐ญ๐๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: FunkLocker samples contain code patterns consistent with copy-pasted AI snippets, leading to rapid but inconsistent builds.
โ ๐๐ฒ๐ฌ๐ญ๐๐ฆ ๐๐๐ฎ๐ฌ๐: Legitimate Windows utilities (PowerShell, sc.exe, taskkill.exe, net.exe) are misused to disable defenses and halt applications.
โ ๐๐จ๐๐๐ฅ-๐จ๐ง๐ฅ๐ฒ ๐๐ง๐๐ซ๐ฒ๐ฉ๐ญ๐ข๐จ๐ง: Files are encrypted locally with the .funksec extension, and ransom notes may remain hidden until reboot.
โ ๐๐๐๐ค ๐จ๐ฉ๐๐ซ๐๐ญ๐ข๐จ๐ง๐๐ฅ ๐ฌ๐๐๐ฎ๐ซ๐ข๐ญ๐ฒ: Reused Bitcoin wallets and locally derived or hardcoded keys enabled researchers to build a public decryptor.
For full technical details, including mapped MITRE ATT&CK tactics and related IOCs, read the complete FunkLocker analysis and explore its interactive sandbox session on the ANY.RUN blog.
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SOC analysts can use ANY.RUNโs Interactive Sandbox to safely detonate FunkLocker samples and observe malicious behavior in real time. Within seconds, the service reveals the complete execution chain, mapped MITRE ATT&CK techniques, and related IOCs. This rapid visibility enables teams to:
โ Detect ransomware activity before encryption completes
โ Gather actionable intelligence for faster triage and containment
โ Validate recovery plans by testing FunkLockerโs impact in a controlled environment
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Over 500,000 cybersecurity professionals and 15,000+ companies worldwide rely on ANY.RUN to accelerate malware analysis and threat investigations. The solutions provide real-time visibility into malicious activity, enabling teams to triage faster, gather actionable threat intelligence, and strengthen security operations.
The ANY.RUN team
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