About
Articles
Book Store
Distributed RCE
Downloads
Event Calendar
Forums
Live Discussion
Reference Library
RSS Feeds
Search
Users
What's New
Customize Theme
bluegrey
blackgreen
metal
simple
Flag:
Tornado!
Hurricane!
Login:
Password:
Remember Me
Register
Blogs
>>
joestewart
's Blog
Created: Wednesday, September 7 2005 11:05.56 CDT
Modified: Thursday, September 8 2005 09:24.38 CDT
Printer Friendly ...
Update to AttachAnyway
Author:
joestewart
# Views:
53351
I've updated my AttachAnyway plugin to be able to
attach to processes protected by Piotr's anti-debugger-attach method two.
http://www.joestewart.org/tools/attachanyway.zip
In it, we just find the PEB_LDR_DATA pointer and VirtualProtectEx the bytes back to PAGE_READWRITE - thus the exception handler will never alert that the page has been accessed by the debugger when attaching. This is harder than it first sounds; Windows XP SP2 no longer keeps the TEB/PEB at static locations, (you can't just do FS:[0] to find the PEB because you are not running in the context of that process) you have to search for the TEB/PEB blocks by signature.
There's probably a more elegant way (this would make a good tutorial if you have a better way to locate the TEB of another process), but it works. Once again, this is just PoC, no guarantees it'll work everywhere.
Update: anonymouse has suggested an alternative, more elegant way to find the PEB of another process using NtQueryInformationProcess, which you can check out on his blog:
https://www.openrce.org/blog/browse/anonymouse
Add New Comment
Comment:
There are
31,322
total registered users.
Recently Created Topics
[help] Unpacking VMP...
Mar/12
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
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