Iran-Linked Hackers Use Reverse SSH Tunnels to Reach Deep Inside Compromised Networks

Iran-linked threat actor Tortoiseshell is expanding its espionage toolkit with reverse SSH tunneling utilities and a TWOSTROKE-like backdoor designed to give operators covert, durable access to compromised internal networks. The research began with public reporting from Kaspersky on Mirage Kitten’s newer malware ecosystem, which included the...