Skip to content

tsarpaul/llvm-string-obfuscator

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

23 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

LLVM String Obfuscator

Hide all your precious strings without touching a single line of your source code, powered by LLVM bytecode manipulation.

Accompanying post: https://medium.com/@polarply/build-your-first-llvm-obfuscator-80d16583392b

image

How-To

  1. Install llvm sudo apt install llvm

  2. Build the StringObfuscator library:

mkdir build
cd build
cmake ..
make
  1. Generate LLVM bytecode from your binary and run the StringObfuscator pass on it:
clang -emit-llvm hello.c -c -o hello.bc
opt -load-pass-plugin=./build/StringObfuscator/libLLVMStringObfuscator.so -passes="string-obfuscator-pass" < hello.bc -o out.bc
llc out.bc -o out.s
clang -static out.s -o out

For Rust:

rustc hello.rs --emit=llvm-bc -o hellor.bc
opt -load-pass-plugin=./build/StringObfuscator/libLLVMStringObfuscator.so -passes="string-obfuscator-pass" < ./examples/hellor.bc -o out.bc
llc out.bc -o out.s
ruststd=$(basename $(ls /usr/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd*.so) | sed 's/lib//g' | sed 's/\.so//g')
clang out.s -L/usr/lib/rustlib/x86_64-unknown-linux-gnu/lib -l$ruststd -o out
  1. Leave a like :)

Releases

No releases published

Packages

No packages published