CTF

Squnity CTF writeups (Jan-10-2019)

Squnity (an arab infosec community) organized a CTF on the 10th of January 2019. It had really interesting challenges. And although I wasn’t able to participate, I downloaded the binaries and took screenshots of the challenges to take a look Read more…

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CTF

SalusLab Web challenge

Challenge info: (link to facebook post) This is a multistep challenge.. Step 1 Lets visit that link. We find a simple web page with a form Lets type anything and submit.. (I typed 0xbahaa) It tells us to send the Read more…

ago
CTF

SalusLab MQTT challenge

Challenge info It’s pretty obvious that this is a script written in the python interpreter’s interactive mode. Here is the commented code for better explanation: >>> import base64 #importing base64 library >>> msg = msg + " "+ base64.b64encode(data) #encoding Read more…

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CTF

SqunityCTF[5] Old Style

This is the challenge description: Inside the zip file, we got 2 EXEcutables. Lets check the 1st one first . 1st EXE: Lets try to find information about this EXE file without running it. This is called Static analysis. First, Read more…

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CTF

SqunityCTF[4] Abusing

Hmmmm.. this time we got a sound file (.mp3). And the description says it’s about something old. Lets check it out.. If we play the sound file, we will notice instantly that it is Morse code. If you don’t know Read more…

ago
CTF

SqunityCTF[3] d3cod3 m3

What do we have here? It says “web server”, and the filename is “c99.zip”, so maybe it’s a PHP shell or something? Inside the zip, there is a PHP file. Let’s check what’s in it. (using notepad++ ) Hmm… some Read more…

ago