Encryption Specialist Conti & LockBit

Ukrainian cyber police have arrested a 28-year-old man from Kyiv, identified as a key figure in the development of cryptors used by the notorious Conti and LockBit ransomware groups.

Authorities Arrested

The arrest is part of an international law enforcement operation known as ‘Operation Endgame.’


The suspect, a native of the Kharkiv region, was apprehended on April 18, 2024. He is accused of creating specialized software, known as cryptors, which disguise malicious code as secure files, making it undetectable by antivirus programs.

The software played a crucial role in the functioning of the Conti and LockBit ransomware groups, which have carried out many significant cyberattacks worldwide.

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The investigation, led by the Ukrainian cyber police and supported by the Dutch police, revealed that the suspect sold his crypting services for cryptocurrency.

His software was used to mask the “Conti-malware” encryption virus, which was deployed in late 2021 to infect the computer networks of companies in the Netherlands and Belgium.

The ransomware attacks rendered the systems unusable, and the hackers demanded a ransom to decrypt the data.

The arrest was part of a broader international effort to dismantle ransomware operations. The Dutch police had previously responded to a ransomware attack on a Dutch multinational, which led to the identification of the suspect.

The operation also involved searches in Kyiv and the Kharkiv region, where computer equipment, mobile phones, and handwritten notes were seized for further examination.

The Role of Cryptors

Cryptors play a crucial role in the cybercrime ecosystem by enabling malware to bypass security defenses.

The suspect’s expertise in developing these tools significantly enhanced the effectiveness of the Conti and LockBit ransomware operations. These groups have been among the most prolific ransomware syndicates, causing widespread disruption and financial losses.

The arrest marks a significant step in the fight against ransomware.

Conti and LockBit have been responsible for numerous attacks on critical infrastructure, healthcare organizations, and businesses worldwide. The disruption of their operations is expected to impact the cybercrime landscape substantially.

The successful identification and arrest of the cryptor specialist underscore the importance of international cooperation in combating cybercrime.

The goal is to significantly lessen the threat that these cybercriminal groups pose as law enforcement agencies continue to target key players in ransomware operations.

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Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.