Operation guide:

1. get ja-netfilter.jar
2. modify vmoptions
3. use key on page https://jetbra.in/5d84466e31722979266057664941a71893322460
4. active with key

Enjoy it~

vmoptions details

add these 3 lines to your vmoptions file: (for manual, without any whitespace chars) modify path to your ja-netfilter.jar file

--add-opens=java.base/jdk.internal.org.objectweb.asm=ALL-UNNAMED
--add-opens=java.base/jdk.internal.org.objectweb.asm.tree=ALL-UNNAMED
-javaagent:D:\Crack\ja-netfilter-all\ja-netfilter.jar=jetbrains