The US Department of the Treasury's Office of Foreign Assets Control (OFAC) has added Uzbek citizen Azizjon Mahmudovich Mamashoev to its sanctions list. According to US authorities, he is linked to Russian hackers and suspected of involvement in cybercrimes. A press release on the updated sanctions list was published on the agency's website.

The US side disclosed his personal data, including passport information. According to these details, Mamashoev was born in 1987 and is a citizen of Uzbekistan.

Also included in the Specially Designated Nationals and Blocked Persons list is his affiliated company, Advance Security Solutions, registered in Dubai in 2025. Tashkent is listed among the company's legal addresses.

The company operates in the offensive cybersecurity sector and, in particular, acts as an exploit broker, offering rewards for information on vulnerabilities in software developed in the US.

In addition to the Uzbek national, Russian citizens Oleg Kucheryov, Marina Vasanovich, and Sergey Zelenyuk were also sanctioned. The latter is suspected of organizing cyberattacks on US government agencies and medical facilities using malicious software. The document states that all listed individuals, including Mamashoev, provided material or technical support to Zelenyuk and his structure.

The Specially Designated Nationals and Blocked Persons list is the primary sanctions list of the US Treasury Department. Strict restrictions are imposed on included companies and individuals: their assets are subject to freezing, and US citizens and organizations are prohibited from conducting any transactions with them.

In November 2025, OFAC also added the Uzbekistan-registered company Datavice to the sanctions list. According to US information, this entity may have been linked to supporting Russian infrastructure or cybercriminal activities.

Source: kun.uz