VolgaCTF Quals 2014 - Reverse 200

Reverse Code Engineering — 200

You just need to put 2 numbers in ascending order without spaces.
btsync: BNBPTYNHZR2FGRLULM5G3XHT4T6XDZK4E
direct link

 You can read my write-up at the Hardc0de team blog.

CSCAMP CTF Quals 2013 - Reverse 100 write-up

Unfortunately tasks currently are unavailable, so I cannot copy task and its name.

We are given a .NET application (You can verify this using file utility.) which checks password. You can try to guess it, but this won't help you anyhow.

Crackmes [Reverse write-up] - Trojaner's Patch/InjectMe write-up (DLL injection)

Task from crackmes:

Patch or Inject it with a DLL, so that it will show the goodboy message :)
Happy Hacking!

Hacklu CTF 2013 - Reverse 150 - RoboAuth

Task:

Oh boy, those crazy robots can't catch a break! Now they're even stealing our liquid gold from one of our beer tents! And on top of that they lock it behind some authentication system. Quick! Access it before they consume all of our precious beverage!

Download: https://ctf.fluxfingers.net/static/downloads/roboauth/RoboAuth.exe

Flag: password1_password2

Crackmes [Reverse] - kaliba CrackMe [very easy level]

In this task we are provided with a binary that asks for a serial code.

After you provide some arbitrary serial number, application rejects it. You may be quite lucky to guess it.

Crackmes [Reverse] - second keygenme [Very Easy level]

In this task we are provided with a windows binary. We have to understand how it works and provide a valid registration name/serial number pair or write a keygen. This program simply asks for those two strings(name/serial) and if the serial code is wrong, it terminates.