Iran-Linked Hackers Expand Attacks With New Backdoor and Reverse SSH Tunnels

Iran-linked hackers have expanded an espionage effort with a Windows backdoor and reverse SSH tunnelling utility. The activity is tied to Tortoiseshell, also tracked as Mirage Kitten, UNC1549 and Nimbus Manticore. The campaign gives operators more ways to retain access after breaking into a network. The tunnelling tool can route traffic from an...