Its own command language, 23 instructions signs point to well resourced operation rather than an opportunistic one Like a sleeper cell awaiting activation, a never before seen Windows backdoor dubbed Sleepwalker waits silently in memory for one specifically crafted network packet to wake it up and deliver commands using the malware 23 instruction language. The commands can do everything from running code directly in memory to moving data off the computer. Malware researcher Dominik Reichel...

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