Rhysida is a financially motivated ransomware-as-a-service operation active since at least May 2023. Also tracked as Rhysida ransomware, Rhysida ransomware group, and Rhysida affiliate operators, it conducts ransomware and data-extortion operations against government entities, healthcare providers, educational institutions, utilities and critical-infrastructure organizations, manufacturers, and technology companies. Publicly reported victims include the British Library, the Chilean Army, Berlin state-government entities, and healthcare organizations. Rhysida commonly combines data theft with file encryption and threatens publication through a leak site to coerce cryptocurrency payments, constituting a double-extortion model. U.S. government guidance has identified compromised remote-access credentials, phishing, and exploitation of the Zerologon vulnerability as common initial-access methods associated with Rhysida activity. A publicly documented campaign also used malicious Microsoft Teams installers. Rhysida ransomware uses ChaCha20 and RSA encryption. Researchers identified a weakness in certain Rhysida implementations' pseudorandom-number generation that enabled development of a decryptor. An asserted relationship between Rhysida and Vice Society remains unconfirmed and is not established attribution.
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.
36 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
4 malware families attributed to this actor across reporting.
1 CVE this actor has used in observed campaigns. 1 of them exploited in the wild.
72 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.
Осуществляет вымогательство после компрометации административной сети Берлина, заявляя о краже юридических, финансовых, кадровых, медицинских и инфраструктурных данных и угрожая их публикацией, если выкуп не будет выплачен.
Reportedly conducted a ransomware attack against Szechenyi Programiroda Nonprofit Kf in Hungary.
Rhysida claimed responsibility for compromising Berlin's administrative network, allegedly exfiltrating approximately 5.79 TB of data, and extorting the city with a 30-Bitcoin demand. Since 2023, it has reportedly targeted government bodies, healthcare providers, educational institutions, and critical-infrastructure organizations.
Conducting a data-theft and extortion operation against Berlin's state administration. The group claims to possess sensitive government, personnel, financial, infrastructure, credential, and personal-data records, and is using a leak-site listing to pressure Berlin into paying a ransom.
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.