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| OllyDbg PE Header Parsing DoS Vulnerabilities |
Debugging |
ap0x |
OllyDBG-PE-Header.zip |
March 11 2006 |
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.386
.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
.data
MsgTitle db "[Simple MessageBox]",0h
MsgText db "This is a very simple program ;)",0h
.code
start:
; MASM32 antiOlly example
; coded by ap0x
; Reversing Labs: http://ap0x.headcoders.net
; I have modified the PEHeader of several included .exe files.
; Fake values I have entered in PEHeader make OllyDBG crash or
; not recognise sections.
PUSH 40h
PUSH offset MsgTitle
PUSH offset MsgText
PUSH 0
CALL MessageBox
PUSH 0
CALL ExitProcess
end start
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