ollydbg

Many roads to IAT

A few days ago a friend approached me and asked how he could see the import address table under immunity debugger and if this could be done using the command line.

I figured this would be a good time to take a look at what the IAT is, how we can list the IAT and what common reversing hurdles could be with regards to the IAT.
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Exploit writing tutorial part 6 : Bypassing Stack Cookies, SafeSeh, SEHOP, HW DEP and ASLR

Introduction In all previous tutorials in this Exploit writing tutorial series, we have looked at building exploits that would work on Windows XP / 2003 server. The success of all of these exploits (whether they are based on direct ret overwrite or exception handler structure overwrites) are based on the fact that a reliable return […]

Exploit writing tutorial part 3b : SEH Based Exploits – just another example

In the previous tutorial post, I have explained the basics of SEH based exploits. I have mentioned that in the most simple case of an SEH based exploit, the payload is structured like this : [Junk][next SEH][SEH][Shellcode] I have indicated that SEH needs to be overwritten by a pointer to “pop pop ret” and that […]

Exploit writing tutorial part 3 : SEH Based Exploits

In the first 2 parts of the exploit writing tutorial series, I have discussed how a classic stack buffer overflow works and how you can build a reliable exploit by using various techniques to jump to the shellcode.  The example we have used allowed us to directly overwrite EIP and we had a pretty large […]

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