Help! My PC Is Still Hacked Even After Reinstalling Windows 11

I think you might have missed a step by reinstalling Windows without ensuring everything was wiped clean first. If the infection is persistent, it could be that the RAT is stored on another drive or partition. Try connecting your SSD to another clean PC and scanning it there. Also, double-check the security of your modem and your Wi-Fi password. It’s important to ensure that both are secure. If your modem’s password is a default one, changing it could make a significant difference.

Are you using a wireless keyboard? If so, be aware that some keyloggers can capture keystrokes even if you think you’re secured. It might also be worth doing a factory reset on any network devices, like your router, since the RAT might be more embedded than you think. Just make sure you set a robust password for your modem after resetting.

It sounds like you're really in a tight spot. First off, it's crucial to avoid changing your passwords on the same device you're concerned may be compromised. If you changed them after reinstalling on the same system, a RAT could have logged those changes. Make sure to use a different device for password changes, like your phone. Have you run a complete malware scan yet? Besides using your firewall, consider installing a trusted antivirus software that specializes in ransomware as well. It might help catch any hidden threats.