Patchedhng classic norecoil + source code

; +-----------------------------------------------------------------+
; |            hereos and generals classic no recoil                |
; |             started on 9.8.2015(m.d.y) by lava                  |
; |  if you want to donate to lava:                                 |
; |       BTC: 19X7KKkMZsu4dLC3wd93N3UHiDJdomb6Vd                   |
; +-----------------------------------------------------------------+

.386
.model flat, stdcall
option casemap :none

system proto c :dword

include windows.inc
include user32.inc
include kernel32.inc
include masm32.inc
includelib msvcrt.lib

includeLib user32.lib
includeLib kernel32.lib
includelib masm32.lib

.data
	hellomsg			db					"heroes and generals no recoil toggler coded in asm by: lava", 0dh, 0ah, "1     - no recoil : OFF", 0dh, 0ah, "enter - exit", 0dh, 0ah, "choice# ", 0 ; 82 bytes to edit off or on
	choice				db					?
	cmd1				db					"CLS", 0
	cmd2				db					"PAUSE", 0
	bo_norecoil			db					0
	me32				MODULEENTRY32		<>
	cmodule32first		db					"Module32First", 0
	ckernel32_dll		db					"kernel32.dll", 0
	cplayer_dll			db					"player.dll", 0
	dw_hng				dd					?
	dw_player			dd					?
	snapshot			dd					?
	pid					dd					?
	dw_var				dd					?
	
	hwndname			db					"H&G", 0
	waitingmsg			db					"waiting for H&G...", 0dh, 0ah, 0
	hwnd				HWND				?
	h_hng				HANDLE				?
	bytes_to_write		db					01h, 00h
	
	failmsg				db					"you dont have enough privileges to edit memory", 0dh, 0ah, 0

.code
start:
	push offset waitingmsg
	call StdOut
	
findwindow_loop:
	push 100
	call Sleep
	
	push offset hwndname
	push 0
	call FindWindow
	test eax,eax
	je findwindow_loop
	
	mov [hwnd], eax
	
	push offset pid
	push eax
	call GetWindowThreadProcessId
	
	push pid
	push 0
	push [8h + 10h + 20h] ; PROCESS_VM_OPERATION + PROCESS_VM_READ + PROCESS_VM_WRITE
	call OpenProcess
	test eax, eax
	je end_failed
	
	mov [h_hng], eax
	
	call get_hng
	mov [dw_hng], eax
	
	mov eax, dw_hng
	mov dword ptr [dw_var], eax
	add [dw_var], 94B04h
	
	push 0
	push 4
	push offset dw_player
	push dw_var
	push h_hng
	call ReadProcessMemory
	
	mov eax, [dw_player]
	mov [dw_var], eax
	add [dw_var], 36454Dh
	add [dw_var], 3
	
	push 0
	push 1
	push offset bytes_to_write
	push dw_var
	push h_hng
	call WriteProcessMemory
	
	mov eax, [dw_player]
	mov [dw_var], eax
	add [dw_var], 1E9074h
	add [dw_var], 6

begin:
	push offset cmd1
	call system
	
	call print_menu
	
	push 1
	push offset choice
	call StdIn
	
	cmp [choice], 31h
	je toggle_norecoil
	
	jmp end_proc
	
print_menu:
	push offset hellomsg
	call StdOut
	
	ret

toggle_norecoil:
	call get_2_more_inputs
	
	cmp [bo_norecoil], 0
	je enable_norecoil
	
	mov [bo_norecoil], 0
	mov [hellomsg +82], 46h
	mov [hellomsg +83], 46h
	
	push 0
	push 1
	push offset [bytes_to_write +1]
	push dw_var
	push h_hng
	call WriteProcessMemory
	
	jmp begin
	
enable_norecoil:
	mov [bo_norecoil], 1
	mov [hellomsg +82], 4Eh
	mov [hellomsg +83], 20h
	
	push 0
	push 1
	push offset bytes_to_write
	push dw_var
	push h_hng
	call WriteProcessMemory
	
	jmp begin
	
	
get_2_more_inputs:
	push 1
	push offset choice
	call StdIn
	push 1
	push offset choice
	call StdIn
	
	ret

get_hng:
	push pid
	push 8 ; TH32CS_SNAPMODULE
	call CreateToolhelp32Snapshot
	mov snapshot, eax
	
	mov ecx, SIZEOF me32
	mov me32.dwSize, ecx
	
	push offset ckernel32_dll
	call GetModuleHandle
	
	push offset cmodule32first
	push eax
	call GetProcAddress
	
	push offset me32
	push snapshot
	call eax
	
	mov eax, me32.modBaseAddr
	ret

end_failed:
	push offset failmsg
	call StdOut

	push offset cmd2
	call system

end_proc:
	push 0
	call ExitProcess

end start