THREAT OPS › Threat News › Newly SLEEPWALKER Backdoor Waits for One Crafted Packet, Then Runs Its Own Bytecode
Newly SLEEPWALKER Backdoor Waits for One Crafted Packet, Then Runs Its Own Bytecode
An independent malware researcher has documented a previously unreported Windows backdoor, dubbed SLEEPWALKER, that stays inert in memory until a specifically crafted network packet reaches the machine and then runs commands written in a 23-instruction language of its own design.
The sample is an unsigned 64-bit Windows dynamic-link library (DLL) of 59,904 bytes, built to be side-loaded into&