SchoolBoys
SchoolBoys Ransomware is a ransomware/extortion brand identified by the U.S. Department of Justice as one of several brands used by a Russia-linked cybercrime organization tied to former Conti leaders. During the involvement of Deniss Zolotarjovs from approximately June 2021 to August 2023, the organization used brands including Conti, Karakurt, Royal, TommyLeaks, SchoolBoys Ransomware, and Akira. The organization stole data from more than 54 companies, including many in the United States, and caused over $56 million in losses during 2021 to 2023. Victims included businesses, government entities, and a pediatric healthcare provider; one attributed attack disrupted a U.S. 911 emergency dispatch system. Reported tradecraft for the broader organization included initial access via stolen VPN credentials and use of Cobalt Strike, AnyDesk, Mimikatz, PowerShell, 7zip, WinZip, Rclone, FileZilla, and Mega.io. The operation conducted data theft and extortion, threatening to leak or sell stolen data, with ransom demands ranging from $25,000 to $13 million in Bitcoin. Based on the provided content, SchoolBoys Ransomware is presented as a brand/alias used by this Russia-linked extortion ecosystem rather than as a separately described standalone group.
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Targeting
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Who they target
Sectors the actor has been observed targeting.
- Government & Administration
- Health Care Equipment & Services
Where they target
Geographies tied to known operations.
- 🇺🇸 United States
Where they're from
Attributed origin per open-source reporting.
- RU
Recent activity
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
One of the ransom-note brands used by the broader ransomware organization tied to former Conti leaders.
Referenced as a ransomware group associated with attacks against victim organizations.
The version that knows your environment.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.