Feb
02

Olympic CTF Sochi 2014 Registration is Open

Let there be Olympics MSLC proudly presents…Alright, do we even need words here? Game starts: February 7th, 2014 16:14 UTC (yeah yeah, those Sochi number freaks… it’s 20:14 in MSK timezone) Game ends: February 9th, 2014 16:14 UTC Sign up: https://olympic-ctf.ru/ Prize set: 1500 USD, 1000 USD, 500 USD. Expect decent tasks. Twenty of them.

Jun
17

Defcon CTF Quals 2013 – \xff\xe4\xcc 4 (penser)

good luck. penser.shallweplayaga.me:8273 http://assets-2013.legitbs.net/liabilities/penser Download penser binary » Summary: x86_64 Unicode-proof shellcoding.

Oct
25

Hack.lu 2012 CTF Challenge #14-15 (150+250)

14 – Safehouse It’s the middle of the night. Nothing but complete darkness and the moaing of approaching zombies surrounds you. You need to escape. Fast. There seems to be nothing to hide and nowhere to run. But then – a small dancing gleam appears while you are running through the blackness. Could it be?… Continue reading »

May
01

SIMD [250] (Pirating)

After examining some code retrieved by our operative we are unsure whether it was written by an evil genius or a google employee. We will let you decide. Summary: linux x64 binary, obfuscated xor

Feb
29

CodeGate 2012 Quals – Binary 500

Seeing that it is not all. Down Summary: VM analysis, python decompiling

Feb
28

CodeGate 2012 Quals – Binary 400

The Rewolf in Kaspersky Down Summary: unpack file, analyze crashdumps, bruteforce

Feb
27

CodeGate 2012 Quals – Binary 300

There are malicious program associated with DDoS zombie. Calcurate the sum of port numbers used for the attack. And, how many times does zombie try to attack? Answer: sum(attack_ports) * attack_count (* : multiplication) Download : 72C4DAA981E17282B12E6226A1D60162 Summary: unpack, malware analyse

Feb
26

CodeGate 2012 Quals Vuln500 Write-up

1.234.41.7:22 ID : yesMan PWD : ohyeah123 Download vulnerable binary. Vuln500 was a hardened format-string vuln with ASLR, NX-stack, no-DTORs, RO .dynamic

Feb
26

CodeGate 2012 Quals – Binary 200

Find a printable string that the program would print ultimately. Down (pw: infected) Summary: unpack, XTEA decrypt

Feb
13

IFSF CTF 2012 #9 – X97

SSH : 208.64.122.235 guest:guest binary Category: exploitation Summary: format string bug, ASLR and NX

Jan
08

GitS 2012 Teaser Hackquest

Find the key. (File running at hackquest.ghostintheshellcode.com:7331) Category: exploitation Hint: source binary

Sep
21

hack.lu CTF 2011 Antique Space Shuttle (300)

Category: exploiting Your command is to get as much information about the crew of an antique space shuttle. We know our acient father used finger as reference point at nc ctf.hack.lu 2003 Summary: bash injection, and buffer overflow on a suid binary to get more privilegies

Jun
09

Defcon CTF Quals 2011 – Retro 400

This challenge was on remote exploiting. The binary is for FreeBSD. The program is some kind of a Virtual Machine, with it’s own stack and memory. binary Summary: memory address check mistake, write shellcode and overwrite _exit function pointer

Jun
07

Defcon CTF Quals 2011 – Pwnables 100

This challenge was on remote exploiting. The binary is for FreeBSD. binary Summary: buffer overflow, jump to shellcode (bruteforce address)

Jun
06

Defcon CTF Quals 2011 – Pwnables 200

This challenge was on remote exploiting. The binary is for SunOS (Solaris). binary Summary: shellcoding challenge

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