Flag: Tornado! Hurricane!

OpenRCE Anti Reverse Engineering Technique >> PeID OEP Signature Spoofing

Technique Name Category Analysis By Download Added On Last Updated
PeID OEP Signature Spoofing Analyzing ap0x AntiPeID-OEP-Signature.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
      include \masm32\include\comdlg32.inc
      
      includelib \masm32\lib\user32.lib
      includelib \masm32\lib\kernel32.lib
      includelib \masm32\lib\comdlg32.lib
      
; #########################################################################  
    .data
       msgTitle db "Scan status:",0h
       msgText db "Fake signature ;)",0h
    .code

start:

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

; PeID checks OEP for signatures. If the byte pattern at OEP matches some of
; the signatures stored in PeID.exe or userdb.txt PeID will identify target as
; packer or protector assigned to that signature. So we can insert any number
; of bytes at OEP and make PeID detect the wrong packer.

; For example this is BJFNT`s OEP

db 0EBh,03h,3Ah,4Dh,3Ah,1Eh,0EBh,02h,0CDh,20h,9Ch,0EBh,02h,0CDh,20h,0EBh,02h,0CDh,20h,60h

; The AntiPeID-OEP-Signature archive also contains examples for spoofing
; EXE Shield and ExeCryptor

; After this code executes we just align the STACK and continue executing
; like no code was executed before MessageBox.

POPAD
POPFD
POP DS

PUSH 40h
PUSH offset msgTitle
PUSH offset msgText
PUSH 0
CALL MessageBox

PUSH 0
CALL ExitProcess

end start

There are 31,134 total registered users.


Recently Created Topics
Information on the t...
Feb/08
Information on the m...
Feb/07
Order Finax, Fincar ...
Feb/07
Information on the m...
Feb/07
Order Proscar (Finas...
Feb/07
Order Proscar, Finax...
Feb/07
Order Finasteride, F...
Feb/07
How to view IDA Pro'...
Nov/02
reverse MC9S12DG128
Oct/07
Looking for an advan...
Mar/21


Recent Forum Posts
Looking for an advan...
tthtlc
Looking for an advan...
tthtlc
Looking for an advan...
clightning
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


Recent Blog Entries
nieo
Mar/22
Android Application Reversing

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...

More ...


Recent Blog Comments
ComPuer on:
May/14
Android Application Reversing

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...

More ...


Imagery
SoySauce Blueprint
Jun 6, 2008

[+] expand

View Gallery (11) / Submit