VolkLocker Ransomware Exposed by Hard-Coded Master Key Allowing Free Decryption
Overview
CyberVolk, a pro-Russian hacktivist group, has launched a new ransomware-as-a-service (RaaS) called VolkLocker, which has a significant flaw. Researchers from SentinelOne discovered that VolkLocker contains a hard-coded master key, allowing victims to decrypt their files without paying the ransom. This ransomware, which surfaced in August 2025, targets Windows systems and is part of an ongoing trend of ransomware attacks that can disrupt businesses and individuals alike. The presence of this flaw means that while the ransomware may still be a concern, victims have a potential way to recover their data without succumbing to the attackers' demands. This incident underscores the ongoing battle between cybercriminals and security researchers, as vulnerabilities in ransomware can lead to unexpected outcomes for victims.
Key Takeaways
- Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
- Affected Systems: Windows systems
- Action Required: Victims can decrypt files using the hard-coded master key; no specific patches or updates are mentioned.
- Timeline: Newly disclosed
Original Article Summary
The pro-Russian hacktivist group known as CyberVolk (aka GLORIAMIST) has resurfaced with a new ransomware-as-a-service (RaaS) offering called VolkLocker that suffers from implementation lapses in test artifacts, allowing users to decrypt files without paying an extortion fee. According to SentinelOne, VolkLocker (aka CyberVolk 2.x) emerged in August 2025 and is capable of targeting both Windows
Impact
Windows systems
Exploitation Status
This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.
Timeline
Newly disclosed
Remediation
Victims can decrypt files using the hard-coded master key; no specific patches or updates are mentioned.
Additional Information
This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.
Related Topics: This incident relates to Windows, Ransomware, Microsoft, and 1 more.