Exetools  

Go Back   Exetools > General > General Discussion

Notices

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #31  
Old 03-22-2004, 03:55
britedream britedream is offline
Friend
 
Join Date: Jun 2002
Posts: 436
Rept. Given: 0
Rept. Rcvd 0 Times in 0 Posts
Thanks Given: 0
Thanks Rcvd at 7 Times in 7 Posts
britedream Reputation: 0
this is the snippet:
Quote:
Originally Posted by Wurstgote
It's me again



0057890C /$ PUSH EBP
0057890D |. MOV EBP,ESP
0057890F |. PUSH ECX
00578910 |. PUSH EBX
00578911 |. MOV EAX,DWORD PTR DS:[40781E] ;<&kernel32.GetModuleHandleA>
00578917 |. MOV EBX,DWORD PTR DS:[EAX]
00578919 |. PUSH DWORD PTR DS:[EBX]
0057891B |. MOV DWORD PTR SS:[EBP-4],EBX
0057891E |. POP DWORD PTR DS:[EBX]
00578920 |. MOV EAX,DWORD PTR SS:[EBP-4]
00578923 |. POP EBX
00578924 |. POP ECX
00578925 |. POP EBP
00578926 \. RETN

Regards
Wurstgote
please forgive my memory, this was your solution.

Quote:
Originally Posted by Satyric0n


Hmm. This is not acceptable.. This would move whatever data was [EBX] to [EAX], overwriting whatever was there already (the value in EBX, at this point), which may be something critical (like an IAT entry). Standard procedure here is just to NOP the instructions at 578919 and 57891E.


I use Visual Studio, but a small app like ResHack or something should do the trick, too. That's a fairly small download, I think. Any resource editor should work; there are many out there, and most are free.

Regards,

Satyric0n
now by nopping the 578919 and 57891e, you rendered the snippet useless,
pop ebx,pop ecx, pop ebp, are restoring what is pushed at the beginning,eax is xored right after retun, so by changing push ebp, to return is equal in effect to your nopping.
and I see no differnce between what I did ,and your nopping.

regards.

Last edited by britedream; 03-22-2004 at 04:54.
Reply With Quote
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with ASProtect 1.23 RC4 Perdition General Discussion 7 06-09-2004 01:48
New Asprotect?? loman General Discussion 7 02-04-2004 20:34


All times are GMT +8. The time now is 20:47.


Always Your Best Friend: Aaron, JMI, ahmadmansoor, ZeNiX, chessgod101
( Since 1998 )