I recently discovered that all my passwords were stolen, which led to an exhausting night of resetting them. To take back control, I bought a new portable SSD and installed Windows 11 on it. Unfortunately, there's a persistent file I can't get rid of, and I suspect there's a Remote Access Tool (RAT) still lurking on my system. I've kept my firewall on, but it doesn't seem to help. What should I scan, or what steps should I take to secure my PC?
3 Answers
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.
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.
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.
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