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Hotpatch is a library that can be used to dynamically load a shared library (.so) file on Linux from one process into another already running process, without affecting the execution of the target process. The API is a C API, but also supported in C++.

Installed size: 221 KB
How to install: sudo apt install hotpatch

  • libc6
root@kali:~# hotpatcher -h

Usage: hotpatcher [options] <PID of process to patch>

-h           This help message
-V           Version number.
-v[vvvv]     Enable verbose logging. Add more 'v's for more
-N           Dry run. Do not modify anything in process
-l <.so>     Path or name of the .so file to load. Switches off execution pointer reset
-s <name>    Symbol to invoke during the dll inject. Optional.
-x <name>    Set execution pointer to symbol. Cannot be set with -s option

Updated on: 2023-Mar-08