Mar 07, 2025Ravie Lakshmanan Threat hunters have shed light on a "sophisticated and evolving malware toolkit" called Ragnar Loader that's used by various cybercrime and ransomware groups like Ragnar Locker (aka Monstrous Mantis), FIN7, FIN8, and Ruthless Mantis (ex-REvil). "Ragnar Loader plays a key role in keeping access to compromised systems, helping attackers stay in … [Read more...] about FIN7, FIN8, and Others Use Ragnar Loader for Persistent Access and Ransomware Operations
Persistent
Malicious Go Package Exploits Module Mirror Caching for Persistent Remote Access
Feb 04, 2025Ravie LakshmananVulnerability / Threat Intelligence Cybersecurity researchers have called attention to a software supply chain attack targeting the Go ecosystem that involves a malicious package capable of granting the adversary remote access to infected systems. The package, named github.com/boltdb-go/bolt, is a typosquat of the legitimate BoltDB database module … [Read more...] about Malicious Go Package Exploits Module Mirror Caching for Persistent Remote Access
Iranian Hackers Using SimpleHelp Remote Support Software for Persistent Access
Apr 18, 2023Ravie LakshmananCyber Threat / Malware The Iranian threat actor known as MuddyWater is continuing its time-tested tradition of relying on legitimate remote administration tools to commandeer targeted systems. While the nation-state group has previously employed ScreenConnect, RemoteUtilities, and Syncro, a new analysis from Group-IB has revealed the adversary's … [Read more...] about Iranian Hackers Using SimpleHelp Remote Support Software for Persistent Access