OpenRCE

📚 OpenRCE is preserved as a read-only archive. Launched at RECon Montreal in 2005. Registration and posting are disabled.

About Articles Book Store Distributed RCE Downloads Event Calendar Forums Live Discussion Reference Library RSS Feeds Search Users What's New

Customize Theme

Flag: Tornado! Hurricane!

Created: Sunday, December 21 2008 12:03.22 CST

Modified: Sunday, December 21 2008 12:03.49 CST

Direct Link, View / Make / Edit Comments

IOCTL-Proxy

Author: g

# Views: 4318

This is a POC of IOCTL fuzzer. It gave surprisingly good results.

IOCTL-Proxy works by hooking NtDeviceIoControlFile, manipulating its' parameters and feeding them to the real function.

Load the driver and simply click around in application you want to test.

You will get a lot of BSODS, be careful.

PreviousMode==KernelMode is ignored, since we are only interested in calls from UserMode to KernelMode, not Kernel->Kernel.

Get it here:
http://www.orange-bat.com

Created: Tuesday, December 16 2008 10:10.14 CST

Direct Link, View / Make / Edit Comments

Command line version of OSR's DeviceTree

Author: g

# Views: 4000

Get it here: http://orange-bat.com/code/device.tree.cmd.rar

Sample output:



Unloading ObjInfo driver

Loading driver: D:\tools\devicetree\i386\OBJINFO.SYS

No service, creating...

Service not running, starting...

Service started.

Driver object: 0x89c98a08

Service name: nvata

Device name: \Device\00000138, type: 0x00000007

Device name: \Device\NvAta2, type: 0x00000001

Device name: \Device\NvAta1, type: 0x00000001

Device name: \Device\NvAta0, type: 0x00000001



Driver object: 0x89c8a8d0

Service name: NDIS

Device name: \Device\Ndis, type: 0x00000012



Driver object: 0x89cdad28

Service name: KSecDD

Device name: \Device\KsecDD, type: 0x00000039



Driver object: 0x8897b218

Service name: Beep

Device name: \Device\Beep, type: 0x00000001



Driver object: 0x899e7418

Service name: Raspti

Device name: \Device\{AA56C973-4F1C-4D19-8BAC-4FA6F14D80CB}, type: 0x00000017



Driver object: 0x89aab928

Service name: Mouclass

Device name: \Device\PointerClass1, type: 0x0000000f

Device name: \Device\PointerClass0, type: 0x00000000

.

.

.

Created: Tuesday, August 19 2008 12:27.29 CDT

Modified: Tuesday, August 19 2008 12:28.01 CDT

Direct Link, View / Make / Edit Comments

Fighting Oreans' VM (code virtualizer flavour)

Author: g

# Views: 5100

If you don't know what code virtualizer is, or how it works, you should read this first:
http://rapidshare.com/files/16968098/Inside_Code_Virtualizer.rar
(Inside Code Virtualizer by scherzo)

Now, as you probably already know from paper by scherzo ;), one possible way recover virtualized code is to identify each mutated handler (find corresponding non-mutated version). After this done, we can trace virtual opcodes and "decompile" them to VM instructions. Having "clean" decompiled output, we can translate it to x86 assembly. I consider the last step, to be simple "find and replace" job with flex/yacc.

The problem is, oreans' vm engine can be a bitch. Consider this piece of code:

continued at:

http://www.woodmann.com/forum/showthread.php?t=12015

Archived Entries for g

Subject	# Views	Created On
No archived blog entries found.

There are 31,328 total registered users.

Recently Created Topics
[help] Unpacking VMP...	Mar/12
Reverse Engineering ...	Jul/06
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