Cisco routers in at least 4 countries infected by highly stealthy backdoorResearchers have uncovered active and highly clandestine attacks that have infected more than a dozen Cisco routers with a backdoor that can be used to gain a permanent foothold inside a targeted network. The SYNful knock malware has been found on 14 routers in four countries, including Ukraine, the Philippines, Mexico, and India and is likely being used to infect other parts of the targeted netwo
