Russian cybercriminals release new ransomware

A notorious group of Russian cybercriminals has resurfaced with a new ransomware variant. However, security experts note that files encrypted by this malware can be easily decrypted.

The return of these Russian cybercriminals marks a concerning development in the cybersecurity landscape. According to reports, the group has introduced a fresh ransomware strain aimed at encrypting victims' files. Despite the threat posed by such attacks, there is a silver lining: the encryption used in this new variant is not robust, allowing for straightforward decryption processes.

This ransomware follows a pattern seen in previous operations by the group, which has a history of targeting various sectors. While details on the specific targets or distribution methods remain limited, the ease of decryption suggests that affected users may recover their data without significant loss, provided they act promptly with appropriate tools.

Experts advise organizations to remain vigilant against phishing and other entry points commonly exploited by ransomware actors. The publication date of this information is December 12, 2025, highlighting the ongoing evolution of cyber threats from Russian-based groups.

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Realistic illustration of a computer screen showing the VanHelsing ransomware attack targeting multiple operating systems, suitable for a cybersecurity news article.
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VanHelsing ransomware RaaS targets multiple platforms

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A new ransomware-as-a-service operation called VanHelsing emerged on March 7, 2025, quickly claiming at least three victims. It supports attacks on Windows, Linux, BSD, ARM, and ESXi systems, with affiliates retaining 80% of ransoms after a $5,000 deposit. The group prohibits targeting entities in the Commonwealth of Independent States.

The pro-Russia hacktivist group CyberVolk has reemerged with a new ransomware-as-a-service platform called VolkLocker, supporting both Linux and Windows systems. First documented in 2024 by SentinelOne, the group returned after a period of inactivity caused by Telegram bans. Despite advanced automation via Telegram bots, the malware features significant encryption flaws that could allow victims to recover files without payment.

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SentinelOne researchers have disclosed a critical flaw in CyberVolk's new VolkLocker ransomware-as-a-service: a hardcoded master key stored in plaintext, enabling victims to decrypt files without ransom payment. Following the group's August 2025 relaunch after Telegram bans, this weakness underscores quality issues in their RaaS ecosystem.

Pro-Russian hackers known as Curly COMrades are exploiting Microsoft's Hyper-V technology to embed lightweight Alpine Linux virtual machines within compromised Windows systems. This tactic allows them to run custom malware like CurlyShell and CurlCat undetected by traditional endpoint detection tools. The campaign, uncovered by Bitdefender in collaboration with the Georgian CERT, targets organizations in Europe and beyond.

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Researchers have attributed a failed cyberattack on Poland's electric grid to Russian state hackers, coinciding with the 10th anniversary of a similar assault on Ukraine. The wiper malware aimed to disrupt power distribution but did not succeed in knocking out electricity. Security firm ESET linked the incident to the notorious Sandworm group.

Following initial arrests reported last week, Spanish authorities have charged four more suspects in Denmark, fully dismantling a criminal network behind the April kidnapping and murder of a crypto holder near Málaga. The operation highlights rising 'wrench attacks' on digital asset owners.

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After a record 2025 for wrench attacks on cryptocurrency holders, as previously analyzed, experts forecast further increases in 2026. These physical coercions to steal digital assets are underreported amid law enforcement challenges and surging crypto adoption, warns TRM Labs.

 

 

 

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