Hi, and thanks for sharing your security config
Hijackthis as a Real Time Protection ? Isn't it a tool to detect malware once installed (On-demand Malware Scanners) ?
You don't use any Anti-virus / anti-Malware, even free ?
I think for the moment your config is not safe
I would mainly suggest you to add an AV (even a Free version), and Zemana Anti Malware as on demand scanner.
A free cloud base anti-malware is
Crystal Security
I will let the other members give their opinion