Hackers Weaponize Free SSH Client PuTTY to Deliver Malware on Windows

OpenSSH, a widely used tool for secure remote management, has been exploited by attackers leveraging its default presence in Windows systems. Malicious actors use trusted binaries like ssh.exe and registry keys to establish stealthy persistent backdoors, complicating detection efforts. #OpenSSH #LOLBIN #RegistryManipulation #SSHBackdoor

Keypoints

Attackers exploit OpenSSH’s integration in Windows to hide malicious activities.
Malware disguises as legitimate processes like dllhost.exe to maintain persistence.
The malware manipulates Windows registry keys to store ports and configuration data.
Malicious SSH configuration files are crafted with errors to facilitate covert C2 communication.
Detection requires monitoring for abnormal process activity, registry changes, and SSH configuration anomalies.