Egregor is a ransomware group that emerged in October 2020 and operated with primarily financial motivations, quickly establishing itself as a significant threat in the ransomware landscape. The group is believed to have originated from Russian-speaking cybercriminals and operated as a Ransomware-as-a-Service (RaaS) model, with some researchers suggesting potential connections to the defunct Maze ransomware operation. Egregor employed double extortion tactics, typically gaining initial access through compromised Remote Desktop Protocol (RDP) connections, phishing campaigns, and exploitation of network vulnerabilities, followed by lateral movement using tools like Cobalt Strike before deploying their ransomware payload and exfiltrating sensitive data prior to encryption. The group targeted organizations across multiple sectors including commercial facilities, financial services, transportation systems, and healthcare, with notable victims spanning the United States, Chile, Canada, and France, though specific high-profile attacks received limited public documentation from major security agencies. Egregor's operations were significantly disrupted in early 2021 when international law enforcement actions led to arrests of suspected affiliates, effectively ending the group's activities by mid-2021. The group has been linked to 6 public disclosures across our corpus. First observed on a leak site on October 10, 2020; most recent post February 8, 2021. The operation is currently inactive.
Sector and geography
This disclosure adds to ransomware activity in the Commercial Facilities sector, which has 20 disclosures indexed across all operators we track. Geographically, Kmart is reported in United States, a country with 7,392 ransomware disclosures in our corpus.
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.
