syscall_nimject using nim to inject shellcode via direct syscalls Compile generate.nim: nim c generate.nim Usage: generate a raw shellcode using msfvenom or cobalt strile.. generate.exe -f shellcode.bin this will produce a "main.exe" which is the backdoor, place it whereever you want. NOTE: Make sure to turn off Defender's Automatic Sample Upload, AND DO NOT UPLOAD TO VIRUS TOTAL. Special thanks to @ajpc500 for NimlineWhispers <3. A small note ⚠️ compiling the backdoor with -d:release or -d:danger switches somehow ruins NtWriteVirtualMemory needs more investigation.