Law enforcement authorities rescued roughly 850,000 machines that were infected with Retadup malware by replacing the command-and-control infrastructure with a disinfection server, causing the worm to self-destruct.
The operation took place last July under the auspices of the French National Gendarmerie's Cybercrime Fighting Center and the FBI, and was significantly aided by researchers at Avast, who had been closely tracking the threat since March.
Discovered in 2017, Retadup is typically coded in either AutoIt or AutoHotkey, self-propagates by dropping malicious LNK files onto connected drives. "The dropped
LNK files essentially mimic users' already existing files and they seem to be successful at convincing many of them that they are just benign shortcuts," reads an Avast technical report published today.
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