Monthly Archives: September 2015

This challenge is an Android application. There are a lot of tools can be used to analyze Android application and the JEB Decompiler is my favorite one. Let’s open this challenge in JEB and look at the Manifest file at … Continue reading →

This challenge is an easy one. It contains two files, one is a Windows Portable Executable file and another one is a PCAP file. Let’s look at the PCAP file at first: In the PCAP file we can see a … Continue reading →

File youPecks is a 32 bit Windows Portable Executable file packed with UPX (according to the section name). And it can be unpacked with the UPX utility: When executes the unpacked file, it only prints out a strange expression “2 … Continue reading →

The first thing you may noticed for this challenge is that the file size is much larger than the previous challenges, it is about 12 MB! However, from the section table we can find that the size of the PE image … Continue reading →

The file of challenge 2 named very_success, it is a 32 bit Windows Portable Executable file which probably written in Assembly Language. The workflow of this program is very similar to the i_am_happy_you_are_to_playing_the_flareon_challenge.exe in challenge 1. It will read a … Continue reading →