Cyber Risks · Unit 42 Palo Alto Networks

Exploring the Cybercrime Underground: Part 3 – Into the RAT Nest

Summary: Unit 42 traced a real attack from a third-party report linking an Adwind sample to a C2 domain, then used Autofocus to find a dozen more samples on the same C2 - almost all LuminosityLink RAT - plus five further C2 domains and several thousand malware files, nearly all commodity RATs such as DarkComet, NJRAT, NanoCore, Remcos and Orcus. The infrastructure ran largely on dynamic DNS, including legitimate providers like NoIP and DynDNS and deliberately misleading domains such as fagdns[.]net, with the email campaigns sent from a legitimate Nigerian commercial organization to 16 recipients per message from an incrementally parsed address database.

What's compelling: Unit 42 concluded this was an unskilled, opportunistic, financially-motivated Nigerian criminal rather than the APT activity the original report described - and the domains of just two dynamic DNS providers were contacted by almost 3000 unique malware samples, with full RAT setups sold cheaply on underground forums.

Read the original at Unit 42 Palo Alto Networks ↗

Topics
Zero-Days & Exploits
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