Silent Ransom Group

Pierluigi Paganini June 08, 2026
UNC3753 Escalates: From Vishing Calls to Physical Office Intrusions at US Legal and Financial Firms

UNC3753 phones staff posing as IT, hijacks screen sessions, steals sensitive legal files, and now sends operatives physically into offices to plug in USB drives. Google Mandiant and the Google Threat Intelligence Group published a detailed report documenting an active extortion campaign carried out by the cybercrime group UNC3753 (aka Luna Moth, Chatty Spider, and […]

Pierluigi Paganini June 05, 2026
Silent Ransom Group (SRG): Switching To DNS Fast Flux Infrastructure

Researchers exposed the Silent Ransom Group ‘s Fast Flux infrastructure as the FBI warns of ongoing attacks targeting U.S. law firms and businesses. Resecurity uncovered the Silent Ransom Group (SRG)’s Fast Flux network infrastructure and shares available intelligence with the cybersecurity community to disrupt their malicious activities and enable ISP/DNS providers to counter this threat. […]

Pierluigi Paganini May 24, 2025
Silent Ransom Group targeting law firms, the FBI warns

FBI warns Silent Ransom Group has targeted U.S. law firms for 2 years using callback phishing and social engineering extortion tactics. The FBI warns that the Silent Ransom Group, active since 2022 and also known as Luna Moth, has targeted U.S. law firms using phishing and social engineering. Linked to BazarCall campaigns, the group previously […]