Wiper Malware - A Detection Deep Dive
Summary: Cisco Talos analyzed a new wiper malware variant that destroys data and sends beacons to command-and-control servers, noting the code is poorly written with little obfuscation and a buffer allocation error that leaks stack data into the payload. Talos traced the beacon construction through the send() function, found the leaked bytes only appear on Windows XP hosts, and revised its detection rule to alert on hard-coded payload elements across Windows versions, listing six C2 IP addresses.
What you should know: The malware's own coding mistake exposed hard-coded payload bytes and six C2 IP addresses that Talos could turn into detection signatures, but the same wiper capability is built to destroy data and complicate incident response, as DarkSeoul did in 2013.
Read the original at Cisco Talos ↗
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