Trend Micro researchers recently found the existence of a new stealer binary that collects browser and cryptocurrency wallet data, system information, and common files, among others.
The researchers designated this new stealer BoryptGrab. Certain variants of the stealer can download a PyInstaller backdoor, which Trend Micro refer to as TunnesshClient. TunnesshClient establishes a reverse Secure Shell (SSH) tunnel to enable comunication with the attacker. By tracing the infection chain, the researchers were able to observe several ZIP archive files in the wild (all with similar naming conventions) that masquerade as common software tools (including gaming cheat hacks).
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Source: Trend Micro
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