Ragnar is a ransomware family covered through reported incidents, technical analysis, disruption efforts, and defensive guidance for organizations.
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Background for this topic.
Ragnar is a ransomware family and criminal operation, not the unrelated software or product names that may use “Ragnar.” It encrypts files to disrupt access; reporting has also associated some incidents with theft of data and threats to disclose it. Coverage under this tag may include claimed or confirmed deployments, technical analysis of the malware and infrastructure, defensive guidance, and law-enforcement or other disruption activity. Incident claims and attribution require independent validation, particularly when operators or researchers publish incomplete information.
The main security concerns are loss of system availability and potential exposure of sensitive data. Organizations should maintain tested, offline or otherwise protected backups; apply security updates to internet-facing systems; enforce multifactor authentication and restrict privileged access; and monitor for unusual account, administrative, and file-encryption activity. If Ragnar is suspected, isolate affected systems without unnecessarily destroying evidence, preserve relevant logs, identify possible data access or exfiltration, and coordinate recovery with legal, privacy, and regulatory teams. Do not assume that paying a ransom will restore files or prevent disclosure.
Weekly headline count for the current query.
Law enforcement agencies arrested a malware developer linked with the Ragnar Locker ransomware gang and seized the group's dark web sites in a joint international operation. [...]
Law enforcement agencies arrested a malware developer linked with the Ragnar Locker ransomware gang and seized the group's dark web sites in a joint international operation. [...]
The Ragnar Locker ransomware operation's Tor negotiation and data leak sites were seized Thursday morning as part of an international law enforcement operation. [...]
The Ragnar Locker ransomware gang has claimed responsibility for an attack on Israel's Mayanei Hayeshua hospital, threatening to leak 1 TB of data allegedly stolen during the cyberattack. [...]
The Ragnar Locker ransomware gang has published stolen data from what they thought was the municipality of Zwijndrecht, but turned out to be stolen from Zwijndrecht police, a local police unit in Antwerp, Belgium. [...]
The Ragnar Locker ransomware gang has claimed an attack on the flag carrier of Portugal, TAP Air Portugal, disclosed by the airline last Friday. [...]
The US Federal Bureau of Investigation (FBI) says the Ragnar Locker ransomware group has breached the networks of at least 52 organizations from multiple US critical infrastructure sectors. [...]