The memedusalockerdusa ransomware group is an obscure threat actor that first emerged in November 2022, operating with apparent financial motivations typical of ransomware operations. Limited public documentation exists regarding this group's origin, affiliation, or operational structure, with no confirmed links to known ransomware families or evidence of Ransomware-as-a-Service operations based on available intelligence from major security firms and law enforcement agencies. The group's attack methodology, tooling, and technical capabilities remain largely undocumented in public threat intelligence reports, with no confirmed details regarding their initial access vectors, encryption methods, or whether they employ data exfiltration tactics commonly associated with modern ransomware operations. With only one publicly documented victim since their emergence, memedusalockerdusa has maintained an exceptionally low profile compared to prominent ransomware groups, generating minimal coverage from established security researchers at Mandiant, CrowdStrike, or similar organizations. The current operational status of memedusalockerdusa remains unclear due to limited visibility into their activities and the absence of recent public reporting on their operations. The group has been linked to 1 public disclosures across our corpus. First observed on a leak site on November 15, 2022. The operation is currently inactive.
If your organisation is affected
A listing by memedusalockerdusa means Salmon Software appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.
- Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
- Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
- Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
- Monitor for the data appearing on memedusalockerdusa's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.
How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.
