The Sleepwalker Backdoor: Why This Silent Windows Threat Evades Network Monitoring
Security researchers have detailed Sleepwalker, a sophisticated new Windows backdoor that lies dormant in memory, disguises itself as ESET security software, and only wakes up when it spots a single specially crafted network packet. Because it never calls out to a command server or opens a listening port, standard network monitoring tools see nothing unusual - a stark reminder that UK businesses need more than perimeter defences to catch a well-resourced, targeted intrusion.
