Back Securityaffairs.Co

Silent Ransom Group (SRG): Switching To DNS Fast Flux Infrastructure

Securityaffairs.Co •Pierluigi Paganini • June 5, 2026

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. […]

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Silent Ransom Group Targets Law Firms with Fast Flux Infrastructure The Silent Ransom Group (SRG), a cyber extortion group active since 2022, has been identified using DNS Fast Flux infrastructure to target U.S. law firms and other sensitive industries. Unlike traditional ransomware, SRG focuses on data theft and extortion without encryption. The FBI has issued warnings about ongoing attacks, particularly against law firms that manage sensitive client data. Resecurity has uncovered SRG's Fast Flux network, which uses compromised devices to create a resilient infrastructure against takedowns. The group is known for exploiting vulnerabilities in IoT devices and customer premises equipment. The advisory highlights the need for collaboration between public and private sectors to combat this threat. The SRG's activities have been linked to other underground projects, indicating a broader network of cybercrime. Law firms are particularly vulnerable due to the sensitive nature of the data they handle. 2 sources 70

Silent Ransom Group (SRG): Switching To DNS Fast Flux Infrastructure

The full story

Extracted Entities

Attack Types (1)

MITRE ATT&CK (1)