![]() ![]() the purchaser) is responsible for the vector. And in terms of infection, this generally means a 2 nd party (i.e. Though malware offered for sale ('malware as a service') is fairly common for in the Windows world, it's less common for macOS malware. The author offered this product in one of the leading underground cybercrime markets." The author of the thread announced a RAT dubbed Proton, intended for installation exclusively on MAC OS devices. " encountered a post in one of the leading, closed Russian cybercrime message boards. This 2 nd-stage component of Empyre is the persistent agent, that once installed will complete the infection and affords a remote attacker continuing access to an infected host. However, this file was likely just the second-stage component of Empyre (though yes, the attackers could of course download and executed something else). Unfortunately this file is now inaccessible. ![]() Specifically the lib/common/stagers.py file:ĮmPyre is a "pure Python post-exploitation agent built on cryptologically-secure communications and a flexible architecture." Ok, so the attackers are using an open-source multi-stage post-exploitation agent.Īs mentioned above, the goal of the first stage python code is to download and execute a second stage component from. RC4 decrypts this payload (key: fff96aed07cb7ea65e7f031bd714607d)ĭoes python code look familiar? Yes! It's taken, almost verbatim from the open-source EmPyre project. ![]()
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