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mod handle;
mod tlhelp32;
mod module;
use std::{process::Command, os::windows::process::CommandExt, mem::size_of};
use crate::ProcMemError;
use handle::Handle;
use tlhelp32::*;
pub use module::{Module, Signature};
use winapi::{um::{tlhelp32::{TH32CS_SNAPPROCESS, TH32CS_SNAPMODULE, TH32CS_SNAPMODULE32},
winbase::CREATE_NO_WINDOW,
memoryapi::{ReadProcessMemory, WriteProcessMemory, VirtualProtect},
wow64apiset::IsWow64Process,
},
shared::{minwindef::{FALSE, LPCVOID, LPVOID, BOOL, PBOOL}, basetsd::SIZE_T}
};
#[derive(Debug, Clone)]
/// contains name, pid and handle of a process
pub struct Process {
pub process_name: String,
/// unique identifier if the process
pub process_id: u32,
/// used when desired data is not inside a loaded module
pub process_base_address: usize,
/// either PROCESS_ALL_ACCESS or PROCESS_VM_READ | PROCESS_VM_WRITE
pub process_handle: Handle,
/// is x32 or x64
pub iswow64: bool
}
impl Process {
/// returns the desired process with the provided pid
///
/// ```rust
/// use proc_mem::{Process, ProcMemError};
/// let process: Result<Process,ProcMemError> = Process::with_pid(12345);
/// ```
pub fn with_pid(pid: u32) -> Result<Self,ProcMemError> {
let h_snap = create_snapshot(TH32CS_SNAPPROCESS, 0)?;
let mut pe32 = new_pe32w();
if !process32first(&h_snap, &mut pe32) { return Err(ProcMemError::IterateSnapshotFailure);}
loop {
if pid.eq(&pe32.th32ProcessID) {
let process_name = String::from_utf16_lossy(&pe32.szExeFile).trim_end_matches('\u{0}').to_string();
let mut proc = Process {
process_name: String::from(&process_name),
process_id: pid,
process_base_address: 0,
process_handle: Handle::read_write(pid)?,
iswow64: false,
};
proc.process_base_address = proc.module(&process_name)?.base_address();
proc.iswow64 = proc.iswow64();
return Ok(proc)
}
if !process32next(&h_snap, &mut pe32) {break;}
}
Err(ProcMemError::ProcessNotFound)
}
/// returns the desired process with the provided name
///
/// ```rust
/// use proc_mem::{Process, ProcMemError};
/// let process: Result<Process,ProcMemError> = Process::with_name("process.exe");
/// ```
pub fn with_name(name: &str) -> Result<Self,ProcMemError> {
let h_snap = create_snapshot(TH32CS_SNAPPROCESS, 0)?;
let mut pe32 = new_pe32w();
if !process32first(&h_snap, &mut pe32) { return Err(ProcMemError::IterateSnapshotFailure);}
loop {
let process_name = String::from_utf16_lossy(&pe32.szExeFile).trim_end_matches('\u{0}').to_string();
if process_name.eq(&name) {
let mut proc = Process {
process_name: String::from(&process_name),
process_id: pe32.th32ProcessID,
process_base_address: 0,
process_handle: Handle::read_write(pe32.th32ProcessID)?,
iswow64: false,
};
proc.process_base_address = proc.module(&process_name)?.base_address();
proc.iswow64 = proc.iswow64();
return Ok(proc)
}
if !process32next(&h_snap, &mut pe32) {break;}
}
Err(ProcMemError::ProcessNotFound)
}
/// returns a Vec<Process> where all processes share the provided name
///
/// ```rust
/// use proc_mem::{Process, ProcMemError};
/// let processes: Result<Vec<Process>,ProcMemError> = Process::all_with_name("process.exe");
/// ```
pub fn all_with_name(name: &str) -> Result<Vec<Process>,ProcMemError> {
let mut results: Vec<Process> = Vec::new();
let h_snap = create_snapshot(TH32CS_SNAPPROCESS, 0)?;
let mut pe32 = new_pe32w();
if !process32first(&h_snap, &mut pe32) { return Err(ProcMemError::IterateSnapshotFailure);}
loop {
let process_name = String::from_utf16_lossy(&pe32.szExeFile).trim_end_matches('\u{0}').to_string();
if process_name.eq(&name) {
let mut proc = Process {
process_name: String::from(&process_name),
process_id: pe32.th32ProcessID,
process_base_address: 0,
process_handle: Handle::read_write(pe32.th32ProcessID)?,
iswow64: false
};
proc.process_base_address = proc.module(&process_name)?.base_address();
proc.iswow64 = proc.iswow64();
results.push(proc);
}
if !process32next(&h_snap, &mut pe32) {break;}
}
match results.is_empty() {
true => return Err(ProcMemError::ProcessNotFound),
false => return Ok(results)
}
}
/// returns an instance of module including its base address in memory
///
/// ```rust
/// use proc_mem::{Process, Module, ProcMemError};
/// let process = Process::with_name("process.exe")?;
/// let module: Result<Module,ProcMemError> = process.module("module.dll");
/// ```
pub fn module(&self, name: &str) -> Result<Module, ProcMemError> {
let h_snap = create_snapshot(TH32CS_SNAPMODULE | TH32CS_SNAPMODULE32, *self.pid())?;
let mut me32 = new_me32w();
if !module32first(&h_snap, &mut me32) { return Err(ProcMemError::IterateSnapshotFailure);}
loop {
let module_name = String::from_utf16_lossy(&me32.szModule).trim_end_matches('\u{0}').to_string();
if module_name.eq(name) {
let module_path = String::from_utf16_lossy(&me32.szExePath).trim_end_matches('\u{0}').to_string();
return Ok(Module::new(
module_name,
module_path,
*self.pid(),
me32.modBaseAddr as usize,
me32.modBaseSize as usize,
&self
))
}
if !module32next(&h_snap, &mut me32){break;}
}
Err(ProcMemError::ModuleNotFound)
}
/// returns true if the process was terminated, otherwise will return false
///
/// ```rust
/// use proc_mem::{Process};
/// let process = Process::with_name("process.exe")?;
/// let did_terminate: bool = process.kill();
/// ```
pub fn kill(&self) -> bool {
let output = Command::new("taskkill.exe")
.arg("/PID")
.arg(&self.process_id.to_string())
.arg("/F")
.creation_flags(CREATE_NO_WINDOW)
.output()
.expect("");
if output.status.success() {
println!("Process with PID {} was terminated", &self.process_id);
true
} else {
println!(
"Error killing process with PID {}: {}",
&self.process_id,
String::from_utf8_lossy(&output.stderr)
);
false
}
}
/// This function takes a type and the address to read.
/// On success the read value will be returned.
/// ```rust
/// use proc_mem::{Process, Module, ProcMemError};
/// let chrome = Process::with_name("chrome.exe")?;
/// let module = chrome.module("kernel32.dll")?;
/// let read_value: Result<T, ProcMemError> = chrome.read_mem::<T>(module.base_address() + 0x1337);
/// ```
pub fn read_mem<T: Default>(&self, address: usize) -> Result<T,ProcMemError> {
let mut out:T = Default::default();
unsafe {
return if ReadProcessMemory(
*self.process_handle,
address as *const _,
&mut out as *mut T as *mut _,
std::mem::size_of::<T>(),
std::ptr::null_mut::<SIZE_T>()
) == FALSE {
println!("ReadProcessMemory failed. Error: {:?}", std::io::Error::last_os_error());
return Err(ProcMemError::ReadMemoryError);
} else {Ok(out)};
}
}
/// This function takes a type and a Vec of addresses/offsets,
/// the first entry being the base address to start from.
/// On success the read value will be returned.
/// ```rust
/// use proc_mem::{Process, Module, ProcMemError};
/// let chrome = Process::with_name("chrome.exe")?;
/// let module = chrome.module("kernel32.dll")?;
/// let chain: Vec<usize> = vec![module.base_address(), 0xDEA964, 0x100]
/// let read_value: Result<T, ProcMemError> = chrome.read_mem_chain::<T>(chain);
/// ```
pub fn read_mem_chain<T: Default>(&self, mut chain: Vec<usize>) -> Result<T,ProcMemError> {
let mut address = chain.remove(0);
while chain.len() != 1 {
address += chain.remove(0);
address = if self.iswow64 {
self.read_mem::<u32>(address)? as usize
} else {
self.read_mem::<u64>(address)? as usize
}
}
let ret = self.read_mem::<T>(address + chain.remove(0))?;
return Ok(ret);
}
/// This function takes a type and a Vec of addresses/offsets,
/// the first entry being the base address to start from.
/// On success the address at the end of the chain will be returned.
/// ```rust
/// use proc_mem::{Process, Module, ProcMemError};
/// let some_game = Process::with_name("some_game.exe")?;
/// let module = some_game.module("client.dll")?;
/// let chain: Vec<usize> = vec![module.base_address(), 0xDEA964, 0x100]
/// let desired_address: Result<usize, ProcMemError> = chrome.read_ptr_chain(chain);
/// ```
pub fn read_ptr_chain(&self, mut chain: Vec<usize>) -> Result<usize,ProcMemError> {
let mut address = chain.remove(0);
while chain.len() != 1 {
address += chain.remove(0);
address = if self.iswow64 {
self.read_mem::<u32>(address)? as usize
} else {
self.read_mem::<u64>(address)? as usize
}
}
return Ok(address + chain.remove(0));
}
/// This function takes a type and the address to write to.
/// The returned boolean will be true on success and false on failure
/// ```rust
/// use proc_mem::{Process, Module};
/// let chrome = Process::with_name("chrome.exe")?;
/// let module = chrome.module("kernel32.dll")?;
/// let mut value_to_write: i32 = 1337;
/// let write_result: bool = chrome.write_mem(module.base_address() + 0x1337, value_to_write);
/// ```
pub fn write_mem<T: Default>(&self, address: usize, mut value: T) -> bool {
unsafe {
WriteProcessMemory(
*self.process_handle,
address as *mut _,
&mut value as *mut T as *mut _,
std::mem::size_of::<T>(),
std::ptr::null_mut::<SIZE_T>()
) != FALSE
}
}
/// With this function someone can write multiple bytes to a specified address.
/// The returned boolean will be true on success and false on failure
/// ```rust
/// use proc_mem::{Process, Module};
/// let chrome = Process::with_name("chrome.exe")?;
/// let module = chrome.module("kernel32.dll")?;
/// let mut bytes_to_write: Vec<u8> = [ 0x48, 0xC7, 0xC0, 0x0A, 0x00, 0x00, 0x00 ].to_vec();
/// let write_result: bool = chrome.write_bytes(module.base_address() + 0x1337, bytes_to_write.as_mut_ptr(), bytes_to_write.len());
/// ```
pub fn write_bytes(&self, address: usize, buf: *mut u8, size: usize) -> bool {
unsafe {
WriteProcessMemory(
*self.process_handle,
address as *mut _,
buf as *mut _,
size as SIZE_T,
std::ptr::null_mut::<SIZE_T>()
) != FALSE
}
}
/// C style method to read memory
/// Third argument is the multiplicator of the Size of "T"
/// for example if someone would want to read multiple bytes
/// ```rust
/// use proc_mem::{Process, Module}
/// let chrome = Process::with_name("chrome.exe")?;
/// let module = chrome.module("kernel32.dll")?;
/// let mut value_buffer: i32 = 0;
/// if !chrome.read_ptr(&mut value_buffer, module.base_address() + 0x1337, None) {
/// println!("ReadMemory Failure");
/// } else {
/// println!("ReadMemory Success");
/// }
/// ```
pub fn read_ptr<T: Copy>(&self, buf: *mut T, address: usize) -> bool {
unsafe {
ReadProcessMemory(
*self.process_handle,
address as LPCVOID,
buf as *mut T as LPVOID,
std::mem::size_of::<T>() as SIZE_T,
std::ptr::null_mut::<SIZE_T>(),
) != FALSE
}
}
/// C style method to read multiple bytes from memory
/// ```rust
/// use proc_mem::{Process, Module}
/// let chrome = Process::with_name("chrome.exe")?;
/// let module = chrome.module("kernel32.dll")?;
///
/// let rsize = 10;
/// let mut bytes_buffer: Vec<u8> = vec![0u8;rsize];
/// if !chrome.read_bytes(module.base_address() + 0x1337, bytes_buffer.as_mut_ptr(), rsize) {
/// println!("ReadMemory Failure");
/// } else {
/// println!("ReadMemory Success");
/// }
/// ```
pub fn read_bytes(&self, address: usize, buf: *mut u8, size: usize) -> bool {
unsafe {
ReadProcessMemory(
*self.process_handle,
address as LPCVOID,
buf as LPVOID,
size as SIZE_T,
std::ptr::null_mut::<SIZE_T>(),
) != FALSE
}
}
/// Returns a string slice of the process name
pub fn name(&self) -> &str {
&self.process_name
}
/// Returns the unique identifier aka. process id of the process
pub fn pid(&self) -> &u32 {
&self.process_id
}
// Determines whether the specified process is running under WOW64 or an Intel64 of x64 processor.
pub fn iswow64(&self) -> bool {
let mut tmp: BOOL = 0;
unsafe {IsWow64Process(*self.process_handle, &mut tmp as PBOOL)};
match tmp {
FALSE => false,
_ => true
}
}
/// Returns "TRUE" specified Memory Protection was changed successfully
pub fn protect_mem(&self, address: usize, size: usize, new_protect: u32, old_protect: *mut u32) -> bool
{
let mut _result: BOOL = FALSE;
unsafe {
_result = VirtualProtect(address as LPVOID, size, new_protect, old_protect);
}
match _result {
FALSE => false,
_ => true
}
}
fn read_module(&self, address: usize, msize: usize) -> Result<Vec<u8>, ProcMemError> {
let mut out = vec![0u8;msize];
let out_ptr = out.as_mut_ptr();
unsafe{
if ReadProcessMemory(
*self.process_handle,
address as LPCVOID,
out_ptr as LPVOID,
size_of::<u8>() as SIZE_T * msize,
std::ptr::null_mut::<SIZE_T>()
) == FALSE {
Err(ProcMemError::ReadMemoryError)
} else {
Ok(out)
}
}
}
}
unsafe impl Send for Process {}
unsafe impl Sync for Process {}