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BlackLock, also known as El Dorado or Eldorado, was a financially motivated ransomware-as-a-service operation active from at least March 2024. The operation used an affiliate model, recruiting partners to deploy its ransomware and sell access to victim environments. Its operator or administrator used the alias “$$$,” which has also been linked to the Mamona ransomware project. BlackLock conducted data-theft-and-encryption extortion, using a Tor-hosted leak site to pressure victims and publicly list stolen data. The group targeted organizations across technology, IT and managed-service providers, healthcare, government, defense, electronics, academic, and civil-society sectors. It used cloud-storage services and data-transfer tooling to stage and move stolen victim data. BlackLock’s affiliate rules barred attacks against Russia, CIS states, and BRICS countries. In March 2025, BlackLock’s leak infrastructure was defaced amid a dispute associated with DragonForce; BlackLock and Mamona subsequently went offline.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
20 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
6 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A rival criminal operation whose leak site was defaced by DragonForce.
Referenced as a ransomware group whose affiliates allegedly overlapped with Gentlemen operators.
Referenced as a ransomware operation for which The Gentlemen founder was previously an affiliate.
Referenced as a ransomware group whose former members were reportedly involved in Gentlemen's formation.
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.