Take a look at Tinywall, under 2MB download size, easy GUI, lots of YouTube videos to learn from and stops these threats below:
- Ransomware- Some ransomware must contact the C&C server before any encryption can take place. So, you get an outbound connection alert when ransomware runs. Block it and it won't be able to harm your data.
- Keyloggers- They can log almost anything. Problem occurs when the recorded data is transmitted to the cyber criminals who can misuse it. Damage can be prevented if you stop any malicious connection to happen from your end.
- Remote Access Trojan (RAT): Some RATs will operate by injecting directly into a legitimate Windows process like svchost, using this to connect out instead of some other executable that can be grossly apparent. Firewalls will not only block the hollowed process from connecting out, but they do it silently with any user input.
The rest you have everything covered and lovely config I must say!
~LDogg