TISC 2021 - 1865 Text Adventure (Creator’s Writeup)
This challenge was created for The InfoSecurity Challenge (TISC) 2021 organised by the Centre for Strategic Infocomm Technologies (CSIT). It was the 9th leve...
Stickied Posts
NUS Greyhats at CDDC 2015 and (Almost) Epic Mass Exploitation
The Cyber Defenders Discovery Camp 2015 is an introductory computer security workshop slash competition targeted at students at the JC and IHL levels. This i...
Recent Posts
Hack You CTF 2012 Writeups
The CTF was really enjoyable. Really great casual atmosphere to it. Too bad we only really caught the last couple of days. Really looking forward to the next...
Hack You CTF 2012 - Pentagon (WEB100)
Note: images and files are missing in this blogpost. To solve the puzzle, we had to obtain the password to a ‘Pentagon’ site relying on Javascript authentica...
Hack You CTF 2012 - Halloween (STG200)
Note: images are missing in this blog post. The only piece of the puzzle we were given was an image file. The distinguishing feature for this picture is that...
Hack You CTF 2012 - Stego 100
In this challenge, we were given the a large amount of text in a file. The entire text may be found at the end of this blog post.
Hack You CTF 2012 - Reverse 200
A zip file containing an ELF binary and Windows executable file was given to us. We need not care about the Windows executable as both the ELF binary and the...
Hack You CTF 2012 - Reverse 100
In this puzzle, a C source file was given to us.
Hack You CTF 2012 - Packets 200
In this task, we are supposed to answer the question: “What’s the md5 of the file being transferred?”. We are given another capture file, this time containin...