Despite finding an overlap on more than 80 IP addresses between the two attacks during our investigation, we do not believe they are related. This threat actor engages in compromised SOHO hopping (the attack originated from a compromised D-Link router) and utilises SSH for file transfer unlike the Quad7 operators who use the TFTP protocol. Furthermore, this actor does not deactivate the management interface of the compromised router after exploiting it. Consequently, we occasionally observe this actor compromising routers prior the Quad7 botnet operators, who then most of the time close the management interface.
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