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fmemory 
A simple node add-on for reading and writing memory on GNU/Linux.
features:
- memory reading
- memory writing
- get process id through process name
- get module base address through module name
- get call address
- get the absolute location of an address (get absolute address)
todo:
- vector3d and vector2d support (read, write)
- ability to call virtual functions
- shellcode execution (maybe)
installing:
Since this is a Node addon, you'll need node-gyp, node-addon-api and a C++ compiler (GCC).
To install this addon simply type: npm install fmemory
usage:
The usage is pretty straight-forward.
Here's how:
const fmemory = require("fmemory");
const clientStateAddress = 0xDEADBEEF
const deltaTickOffset = 0x123
(function main() {
// get process id
const processID = fmemory.getProcessID("csgo_linux64")
// get engine module base address
const engineModuleBaseAddress = fmemory.getModuleBaseAddress("engine_client.so", processID)
// get client state address
const pClientState = fmemory.readMem(engineModuleBaseAddress + clientStateAddress, fmemory.INT)
if (pClientState) {
// force update
fmemory.writeMem(pClientState + deltaTickOffset, -1 /* <- value */, fmemory.BYTE)
}
})()NOTE: This works with Wine/Proton as well.
documentation:
When using the writeMem or readMem you will need to tell the data type parameter, it can either be a string:
"int", "uint", "long",
"ulong", "short", "float",
"double", "byte", "bool"
"string"Or you can use one of the constants provided by the library:
fmemory.INT, fmemory.UINT, fmemory.LONG,
fmemory.ULONG, fmemory.SHORT, fmemory.FLOAT,
fmemory.DOUBLE, fmemory.BYTE, fmemory.BOOL,
fmemory.STRINGfmemory is available under the MIT License