Flag: Tornado! Hurricane!


Technique Name Category Analysis By Download Added On Last Updated
LordPE Anti Dumping Dumping ap0x AntiLordPE.zip March 11 2006
Description:
    .586
      .model flat, stdcall
      option casemap :none   ; case sensitive

      include \masm32\include\windows.inc
      include \masm32\include\user32.inc
      include \masm32\include\kernel32.inc

      includelib \masm32\lib\user32.lib
      includelib \masm32\lib\kernel32.lib

    .code

start:

; MASM32 antiLordPE example
; coded by ap0x
; Reversing Labs: http://ap0x.headcoders.net

; This example was taken from  Pavol Cerven`s book Crackproof your Software.
; This example increments size of image of our process by 0x3000. By doing this
; we confuse LordPE and it can not dump. There is a way to overcome this LordPE`s
; problem. You can always use Correct size of image option and make a process dump.

ASSUME FS:NOTHING
MOV EAX,DWORD PTR FS:[30h]

TEST EAX,EAX
JS @found_win9x
@found_winNT:
MOV EAX,[EAX+0Ch]
MOV EAX,[EAX+0Ch]
ADD DWORD PTR[EAX+20h],3000h
JMP @exit
@found_win9x:
PUSH 0
CALL GetModuleHandle
TEST EDX,EDX
JNS @exit
CMP DWORD PTR[EDX+08],-1
JNE @exit
MOV EDX,[EDX+4]
ADD DWORD PTR[EDX+50h],3000h
@exit:
PUSH 0
CALL ExitProcess

end start

There are 31,287 total registered users.


Recently Created Topics
Reverse Engineering ...
Jul/06
hi!
Jul/01
let 'IDAPython' impo...
Sep/24
set 'IDAPython' as t...
Sep/24
GuessType return une...
Sep/20
About retrieving the...
Sep/07
How to find specific...
Aug/15
How to get data depe...
Jul/07
Identify RVA data in...
May/06
Question about memor...
Dec/12


Recent Forum Posts
Finding the procedur...
rolEYder
Question about debbu...
rolEYder
Identify RVA data in...
sohlow
let 'IDAPython' impo...
sohlow
How to find specific...
hackgreti
Problem with ollydbg
sh3dow
How can I write olly...
sh3dow
New LoadMAP plugin v...
mefisto...
Intel pin in loaded ...
djnemo
OOP_RE tool available?
Bl4ckm4n


Recent Blog Entries
halsten
Mar/14
Breaking IonCUBE VM

oleavr
Oct/24
Anatomy of a code tracer

hasherezade
Sep/24
IAT Patcher - new tool for ...

oleavr
Aug/27
CryptoShark: code tracer ba...

oleavr
Jun/25
Build a debugger in 5 minutes

More ...


Recent Blog Comments
nieo on:
Mar/22
IAT Patcher - new tool for ...

djnemo on:
Nov/17
Kernel debugger vs user mod...

acel on:
Nov/14
Kernel debugger vs user mod...

pedram on:
Dec/21
frida.github.io: scriptable...

capadleman on:
Jun/19
Using NtCreateThreadEx for ...

More ...


Imagery
SoySauce Blueprint
Jun 6, 2008

[+] expand

View Gallery (11) / Submit