Disassembling and reverse engineering binaries

I recommend using a Virtual Machine for this with no internet connectivity.

Windows disassembly VM tools

• Process Explorer sysinternals
• Process Hacker
• Tor
• 7zip
• Notepad++
• Oracle Virtual Box
• DIE Detect It Easy(DiE) is a packer identifier.
• ILSpy
• x64dgb
• Wireshark
• cmder or cmd
• Fiddlr proxy
• Mockoon
• HashCheck
• Insomnia REST client

Android disassembly VM tool

• apktool
• JD-GUI
• dex2jar
• Apk Extractor (non-opensource)
• HttpCanary

Useful resource on Android APK disassembly: decompile-and-recompile-android-apk