Solution pour le CrackMe d'EsSandRe

my solution,
asm file:

.386
.model  flat, stdcall
option  casemap :none

include     keygen.inc

.code
;Reproduction de l'algo
start:
    invoke  GetModuleHandle, NULL
    mov hInstance, eax
    invoke  DialogBoxParam, hInstance, IDD_MAIN, 0, offset DlgProc, 0
    invoke  ExitProcess, eax
    invoke  InitCommonControls

DlgProc proc uses esi edi hWnd:DWORD,uMsg:DWORD,wParam:DWORD,lParam:DWORD
    mov eax,uMsg
    .if eax == WM_INITDIALOG
        invoke  LoadIcon,hInstance,200
        invoke  SendMessage, hWnd, WM_SETICON, 1, eax
        invoke  LoadLibrary,chr$('msvcrt.dll')
        mov msvcrt,eax
        invoke  GetProcAddress,msvcrt,chr$('_itoa')
        mov itoa,eax
        invoke  GetProcAddress,msvcrt,chr$('srand')
        mov srand,eax
        invoke  GetProcAddress,msvcrt,chr$('rand')
        mov rand,eax
    .elseif eax == WM_COMMAND
        mov eax,wParam
        .if eax == IDB_EXIT
            invoke  SendMessage, hWnd, WM_CLOSE, 0, 0
        .elseif eax == IDB_GENERATE
            mov serial_d,0
            .repeat
                mov edi,offset Buf1
                push serial_d
                call srand
                add esp,04h
                xor ebx,ebx
                .repeat
                    push serial_d
                    call rand
                    add esp,04h
                    mov ecx,1Ah
                    cdq
                    idiv ecx
                    movzx eax,byte ptr [edx+LowcseAlp]
                    stosb
                    inc ebx
                .until ebx == 8
                inc serial_d
            invoke lstrcmp,addr Buf1,chr$('vflpgnqo')
            .until eax == 0
            dec serial_d
            push 10
            push offset Serial
            push serial_d
            call itoa
            add esp,0ch
            invoke SetDlgItemText,hWnd,IDC_SERIAL,addr Serial
        .endif
    .elseif eax == WM_CLOSE
        invoke  EndDialog, hWnd, 0
    .endif
    xor eax,eax
    ret
DlgProc endp
end start

Inc file:

include     windows.inc
include     user32.inc
include     kernel32.inc

include     comctl32.inc
include     \masm32\macros\macros.asm

includelib  user32.lib
includelib  kernel32.lib
includelib  comctl32.lib

DlgProc     PROTO   :DWORD,:DWORD,:DWORD,:DWORD

;
.const
IDD_MAIN        equ 1000
IDB_EXIT        equ 1001
IDC_NAME        equ 1002
IDC_SERIAL      equ 1005
IDB_GENERATE    equ 1006
IDB_ABOUT       equ 1007

.data
LowcseAlp       db  "abcdefghijklmnopqrstuvwxyz",0

.data?
hInstance   dd  ?
msvcrt      dd  4   dup(?)
srand       dd  4   dup(?)
rand        dd  4   dup(?)
itoa        dd  4   dup(?)
serial_d    dd  4   dup(?)
Buf1        dd  10  dup(?)
Serial      dd  10  dup(?)

RC file:

;This Resource Script was generated by WinAsm Studio.

#define IDD_MAIN 1000
#define IDB_EXIT 1001
#define IDC_STATIC1004 1004
#define IDC_SERIAL 1005
#define IDB_GENERATE 1006

1 24 DISCARDABLE "manifest.xml"

IDD_MAIN DIALOGEX 10,10,135,42
CAPTION "Brute-Forcer"
FONT 8,"Tahoma"
STYLE 0x90c80804
EXSTYLE 0x00000188

BEGIN
    CONTROL "Exit",IDB_EXIT,"Button",0x10010000,80,25,45,13,0x00000000
    CONTROL "Serial",IDC_STATIC1004,"Static",0x50000000,7,9,20,9,0x00000000
    CONTROL "",IDC_SERIAL,"Edit",0x50010000,33,6,91,12,0x00000200
    CONTROL "Get",IDB_GENERATE,"Button",0x10010000,10,25,44,13,0x00000000
END

AutoIt bruteForcer (for the lulz):

; brute force pour le crackme de EsSandRe
; Merci a 599eme Man
HotKeySet("{F1}", "Quit")
; Appuyez sur F1 pour quitter le programme
Func _sleep()
$result = InputBox("Temps de ralentissement", "Temps en ms")
If Not Number($result) Then _sleep()
Return $result
EndFunc
$Cible="CrackMe by EsSandRe"
$Mdp=""
$tempo=_sleep()
If WinExists($Cible)<>1 Then
MsgBox(0,"Error","Crackme is not launched")
Exit
EndIf
WinActivate($Cible)
WinWaitActive($Cible)
For $i=0 to 99999999
$Mdp = $i
ControlSetText($Cible, "", "[CLASS:Edit; INSTANCE:1]", $Mdp)
Sleep($tempo)
ControlClick($Cible, "", "[CLASS:Button; INSTANCE:1]")
Sleep($tempo)
If ControlGetText("Mauvais mot de passe", "", "[CLASS:Static; INSTANCE:2]")<>"Mauvais mot de passe" Then
MsgBox(0,"","Found !!! : " & $Mdp )
Exit
Else
WinClose("Mauvais mot de passe")
EndIf
ControlClick("Mauvais mot de passe", "", "[CLASS:Button; INSTANCE:1]")
Sleep($tempo)
Next
Func Quit()
Exit
EndFunc

Package download