Guilty Plea of Yanluowang Ransomware Initial Access Broker
Aleksei Olegovich Volkov, a Russian national operating under the alias 'chubaka.kor', pleaded guilty to hacking into U.S. companies and selling network access to ransomware groups, specifically those deploying the Yanluowang ransomware. Volkov used various techniques to compromise employee accounts, escalate privileges, and then brokered access to other cybercriminals, facilitating ransomware attacks on at least seven U.S. organizations, including a bank, a telecommunications company, and an engineering firm. Court documents reveal that two of the victims paid ransoms totaling $1.5 million in Bitcoin, with Volkov receiving a portion of the proceeds.
Volkov's activities spanned from July 2021 to November 2022, after which the Yanluowang group ceased operations following a hack and leak of their internal data. He was arrested in 2024 after relocating to Rome and subsequently extradited to the United States, where he now faces up to 50 years in prison and fines up to $1 million, along with restitution to victims. The case highlights the significant role of initial access brokers in enabling ransomware operations and the ongoing law enforcement efforts to disrupt such cybercriminal supply chains.
Timeline
Nov 10, 2025
Volkov pleads guilty in US court
Volkov pleaded guilty in the United States to hacking US companies and selling network access to affiliates who later deployed Yanluowang ransomware. He now faces up to 50 years in prison, fines of up to $1 million, and restitution.
Jan 1, 2024
Volkov extradited to the United States
Following his 2024 arrest in Rome, Volkov was extradited to the United States to face charges related to hacking US companies and facilitating Yanluowang ransomware intrusions.
Jan 1, 2024
Volkov arrested in Rome
After moving to Rome, Volkov was arrested in 2024 in connection with the US case involving hacking and the sale of access to ransomware affiliates.
Nov 1, 2022
Yanluowang affiliates receive access to seven US victims
Between July 2021 and November 2022, Volkov was tied to intrusions at seven US companies and sold access that was later used by Yanluowang ransomware affiliates. Two victims ultimately paid a combined $1.5 million in Bitcoin, from which Volkov received a share.
Jul 1, 2021
Volkov begins hacking US companies and brokering access
Court documents say Aleksei Olegovich Volkov, known as chubaka.kor, began operating as an initial access broker in July 2021, hacking US companies and selling network access to affiliates linked to Yanluowang ransomware.
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Guilty Plea of Yanluowang Ransomware Initial Access Broker
Aleksei Olegovich Volkov, a Russian national, pleaded guilty in the United States to charges related to his role as an initial access broker (IAB) for the Yanluowang ransomware group. Volkov provided access to at least seven U.S. organizations between July 2021 and November 2022, enabling the deployment of ransomware that resulted in ransom demands ranging from $300,000 to $15 million. He received a percentage of the ransom payments, including $94,259 from a $500,000 ransom and $162,220 from a $1 million ransom, and was ordered to pay nearly $9.2 million in restitution to affected organizations. Volkov's activities were uncovered through digital forensics, including chat logs, cryptocurrency records, and social media accounts, and he was extradited to the U.S. after being apprehended in Rome. The indictment and plea agreement detail Volkov's collaboration with co-conspirators, his use of aliases such as "chubaka.kor," and his involvement in negotiating ransom payments and providing network credentials to the Yanluowang group. The attacks affected a range of U.S. businesses, including engineering firms, banks, and telecommunications providers, with some victims able to restore from backups and avoid ransom payments. Volkov faces up to 53 years in prison for charges including access device fraud, aggravated identity theft, and conspiracy to commit money laundering and computer fraud.
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