PE_patcher is a simple tool for patching PE executables
Usage:
PE_patcher.exe filename.exe address bytes
For example:
PE_patcher.exe filename.exe 0x401000 33C0C3
It can also be used in pair with my other utility: PE_search_str_refs.
Download: win32 executable, win64 executable
Source code. Bolt library in which this utility is incorporated