alehacksp/uuid-loader

UUID based Shellcode loader for your favorite C2

UUID Loader

Experimental Stage-1 Shellcode Loader, using IE COM Object Methods to fetch Shellcode and uses UUID as shellcode.

Features

• Fetches Cobalt Shellcode from Github using IE-Com
• Shellcode returns is bunch of UUID Strings
• Uses UuidFromStringA callback to load shellcode into allocated heap area
• Dynamic API Resolving to make IAT Look clean
• Multiple Preliminary Checks before execution
• Implements BlockDLL;s to block non microsoft signed DLL to get loader - Blocking EDR DLL Hooks
• Does Local Process Injection, avoiding touching remote process
• Works fine with Cobalt Strike x64 Stageless Shellcode

Upcoming

• Obfuscated UUIDs and deobfuscate before triggering callback
• Ability to convert UUID to shellcode and inject remote using thread hijacking
• Using SGN or custom shellcode encoder before generating UUID Shellcode

Usage

• Host your shellcode as UUIDs
• Hardcode the raw link in Line: 206 inside downloader.h

Idea

https://research.nccgroup.com/2021/01/23/rift-analysing-a-lazarus-shellcode-execution-method/

Credits to slaeryan for IE COM code from Wraith