164. Ransomware Gang Abuses Legitimate Employee Monitoring Software

Hello everyone!

Threat actors are always adding new tools to their arsenal. This Symantec report on Fog Ransomware proves it one more time. 

Among other uncommon tools, the adversary leveraged Syteca - a legitimate security solution, which enables recording on-screen activity, keystroke monitoring, etc.

The threat actors even used PsExec and SMBExec to execute the tool on the remote systems, for example:

cmd.exe /Q /c SytecaClient.exe 1> \\127.0.0.1\ADMIN$\__1748095766.8385904 2>&1

As it's a legitimate tool, it's quite easy to detect, for example:

event_type: "processcreatewin"

AND

proc_file_productname: "syteca"

See you tomorrow!

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