Developer
Codebreaker challenges are always fun and educational. This year’s it was especially good. It span multiple areas reverse engineering and…
Continue Reading →Our final task is to take over an Escrow contract and refund the money back to the victims who paid. After completing task 6 , the solution…
Continue Reading →In this task we are going to trick the attackers to reveal us the decryption key without paying any ransom. Before we dive in, it will help…
Continue Reading →In this task we are asked to find out which hosts were infected on our network given the victim IDs we have discovered in Task 4 . What do…
Continue Reading →Now we need to find out who the the other victims are. To solve this task, we need to have some understanding of how blockchain works…
Continue Reading →While solving Task 1 , we didn’t reverse engineer the CID function. This time we will. Again, we” be using Radare. Looks like it uses…
Continue Reading →In this task we are asked to examine the binary pieces left by ransomware and captured network traffic to extract the following information…
Continue Reading →Let’s look at Task 2 before doing Task 1. It is a much quicker and easier task, and it is a good warm-up practice in reverse engineering…
Continue Reading →This task is really simple, all you need to do is download the given capture file and analyze it with a tool such as tcpdump or WireShark…
Continue Reading →Every year publishes a challenge to reverse engineer and exploit something. Past challenges involved disarming simulation of IED…
Continue Reading →I haven’t been posting regularly here for a very long time. We’ll try to resume this blog. Let’s see how long it’s going to last this time…
Continue Reading →I just put a quick transform script to convert outlines generated by OmniOutliner to MarkDown slide deck. The markdown is specific to…
Continue Reading →Just released new version of AWS4C library. The new release includes support for S3 delete operation. Check the API Reference and example…
Continue Reading →Just ported the RXTX library to the Android platform. Check out the picture below, it shows the Motorola Droid phone talking to the…
Continue Reading →Just released new version of AWS4C library. The new release includes support for Reduced Redundancy Storage and some bug fixes related to…
Continue Reading →There is an excellent tutorial by Nirnimesh on how to compile native programs for Android here http://android-tricks.blogspot.com/2009/0…
Continue Reading →Thanks to Henry N. for sending patches to the AWS4C library. I applied and tested them, hence the new release of the library. Here is the…
Continue Reading →Believe it or not some people need to write programs to access Amazon Web Services in C. This project grew out of the conversion of my old…
Continue Reading →Hadoop tutorial for Windows and Eclipse . Just posted a tutorial on how to configure Hadoop environment for Windows using CYGWIN . The…
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