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Hackers Weaponized Free SSH Client Putty to Attack Windows Systems With Malware


A sophisticated malware campaign that exploits Windows' native OpenSSH client to establish persistent backdoors on infected systems.

A sophisticated malware campaign that exploits legitimate SSH clients, including both the popular PuTTY application and Windows’ built-in OpenSSH implementation, to establish persistent backdoors on compromised systems. This tool became a default Windows component with version 1803, making it an attractive target for threat actors seeking to blend malicious activities with legitimate system processes. The incident underscores the importance of monitoring native Windows tools that possess network communication capabilities, as attackers continue to exploit the inherent trust placed in these legitimate system components to maintain persistent access while evading traditional security controls.

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