iHack2013 Forensic Challenge #11 WriteUp - Lets Cool Your Mind with Cartoon First :D

In this challenge, we are given this clue and a file.

Running file on the file given tells us this is a video file.

Some weird noise that resembles morse code is noticeable at 02:48 mark. We rip the audio out from the ASF file and load it in Audacity, and we see something in the audio stream.

Snip the part that we want and this is what we get:

Morse code! Decoding it gives this:

SKUCSKUCACGTZYLRGMUDXUREVUREXUREXUREVUREOFZKNLRGM

Based on the clue, we guess it's encoded with Caesarian cipher (ROT13, "the 13th time"), with 6 alphabet shifts (6am).

Decoded:

MEOWMEOWUWANTSFLAGOXROLYPOLYROLYROLYPOLYIZTEHFLAG

Flag: ROLYPOLYROLYROLYPOLY

CSAW 2012 Writeup - Forensic 500

Strange enough, this is easier than the other forensics challenges. Just run strings against the file given:

Key: this_should_be_pretty_hard_unless_you_use_grep

CSAW 2012 Writeup - Networking 100

Open the pcap file in wireshark -> Follow TCP stream -> the key is the telnet login password.

Key: welcome to 1969

CSAW 2012 Writeup - Reversing 200

Run the binary to see if there are any messages:

This is a .net binary, so we load it up in a .net decompiler.
Here are the encrypted key bytes:

Found the decryption routine upon further inspection:

Wrote a shell script to xor each byte with 255, decrypted message is The key is 9c09f8416a2206221e50b98e346047b7

Key: 9c09f8416a2206221e50b98e346047b7

CSAW 2012 Writeup - Reversing 100

Run the binary, and see the output:

So what we want to do is to obtain the decrypted key. Load the binary in a debugger:

From the debugger, it is shown that the program exits prematurely before it shows the decrypted key. That's easy, just put a breakpoint at the call to exit() at 0x401106, patch it with nops, and voila!

Key: welcome_to_csaw!

Another way is to load the binary in a disassembler:

Key bytes are being loaded into the buffer.

The decryption routine:

Xor the key bytes with 0xff, and we get welcome_to_csaw!

CSAW 2012 Writeup - Trivia Challenges

There were five challenges in the Trivia category, each weighs 100 points:


1) What is the first step of owning a target?
2) What is the name of the Google’s dynamic malware analysis tool for Android applications?
3) What is the x86 opcode for and al, 0×24? Put your answer in the form 0xFFFF.
4) Who was the first security researcher to publish the DEP bypass that utilized WriteProcessMemory()?
5) What is the name of Microsoft’s sophisticated distributed fuzzing system that utilizes automated debugging, taint analysis, model building, and constaint solving?


1) What is the first step of owning a target?
Key: recon

2) What is the name of the Google’s dynamic malware analysis tool for Android applications?
Refer: http://siliconangle.com/blog/2012/07/23/google-bouncer-researchers-fingerprint-androids-anti-malware-tool/
Key: bouncer

3) What is the x86 opcode for and al, 0×24? Put your answer in the form 0xFFFF.
I used msf's nasm_shell.rb to get the opcode.
Key: 0x2424

4) Who was the first security researcher to publish the DEP bypass that utilized WriteProcessMemory()?
Refer: http://seclists.org/fulldisclosure/2010/Mar/att-553/Windows-DEP-WPM.txt
Key: Spencer Pratt

5) What is the name of Microsoft’s sophisticated distributed fuzzing system that utilizes automated debugging, taint analysis, model building, and constaint solving?
Refer: http://research.microsoft.com/en-us/projects/atg/ndss2008.pdf
Key: SAGE

Killing Techies the Malaysian Way

Original source of this article

CPB2011 Draft (Update: working draft of CPB2011 has been officially released by MOSTI. Click here to download.)

Latest update on this matter 

Also, List of Demands to the Board of Computing Professional Bill 2011 Drafting Committee

Update: from spoonfork - "Hi, I need your help in getting the requests, comments, and questions regarding #CPB2011 to be heard by MOSTI. As such, I would like you and your organizations to support the document that I have prepared. If you agree to support the "COMMON VOICE OF ICT PROFESSIONALS ON BCP2011 AS OF 13 DEC 2011" please let me know so that I can list your groups/organizations in.  
https://docs.google.com/document/d/14E05jHZKQA0y6rP07n2PYtR4obBLEpiiK7OO1iQQ0PA/edit?hl=en_US"

COMMON VOICE OF ICT PROFESSIONALS ON BCP2011 AS OF 13 DEC 2011

“We the Malaysian ICT professionals have been alarmed by the sudden announcement of the Board of Computing Professionals Draft Bill 2011 (hereby referred to as the BCP2011) which caught most of us off-guard resulting in mixed reactions and unnecessary arguments. As responsible Malaysian citizens, we trust and respect the Government’s intent to enhance the  ICT profession. In this spirit, we therefore do not object the Government’s intent to form the Board of Computing Professionals but in retrospect, we have NOT found any information and substantiation that suggests or concludes that the formation of the Board of Computing Professionals is the right and only answer to amicably resolve all matters that the Government perceive to be issues relating to the ICT profession, if such issues indeed do exist in the first place. This document is therefore presented to MOSTI as our joint voice and concerns in an attempt to seek answers and would in turn appreciate point by point answers to our questions and agreement to our requests.”

 
SHARE/PASS THIS ROUND AS MUCH AS YOU LIKE:

After the draconian Peaceful Assembly Bill, Malaysia is now trotting out the next Really Bad Idea: the Computing Professionals Bill 2011. You can read the draft bill here: http://www.scribd.com/doc/75107593/CPB2011-Draft

The gist of it is this: the plan is to create a Board of Computing Professionals and make it mandatory by law for all computing professionals to be registered with and certified by said board.

This board will decide whether you are a 'properly' qualified professional. There will of course be registration fees involved, payable yearly. And a proposed 'fund' created. Why does all this smell rather like a poorly disguised moneymaking scheme?

If you are NOT a registered member, you are prohibited from submitting "proposals,plans,designs,drawings,schemes,reports,studies or others to be determined by the Board to any person or authority in Malaysia".

In other words, if I don't register, it is technically illegal for me to even email ANY MALAYSIAN with even an IDEA for a tech-related project. It would be against the law for me to even sketch, on a napkin, my idea for a new app while having coffee with someone.

Want to know the hilarious part? The country with a bill nearly identical to ours is...NIGERIA. -> http://www.cpn.gov.ng/index.php?page=showcnt&cat=4&subc=0&id=3 . So we're taking a leaf out of their book? Brilliant, Malaysia, totally brilliant.

In countries like Australia, there are professional bodies like the Australian Computer Society. But enrollment is voluntary - in Malaysia, the powers that be are figuratively putting a gun to the head of every computing professional. "Register or you'll be deemed doing business illegally."

Why is this a big deal? The bill goes against the grain of everything tech stands for. It's about innovation and the freedom to create; things this bill intends to snuff out. What's to stop the country from deciding what kind of tech we're allowed to create?

The bill even states that IT professionals are not allowed to participate in fields not within their expertise. So if I'm a registered systems analyst but taught myself to program in Rails in my spare time, it would be ILLEGAL for me to do some coding for a client unless I re-declare my skills.

As an IT grad and ex-tech worker, I learned first-hand that it isn't paper qualifications that count as much as proven skills. I know programmers without degrees or any form of certification who are skilled, competent  and in most cases, entirely self-taught. After all, the biggest names in the global IT industry —Bill Gates, the late Steve Jobs, Michael Dell and Larry Ellison—dropped out of college.

Dear tech industry workers, I urge you to oppose the bill.

Oppose it because it seeks to force you to limit and narrowly define the scope of your talents.

Oppose it because the government is effectively trying to decide what you can or cannot work on and who you can work with.

Oppose it because unnecessary regulation like this will cripple, not enhance the already challenged industry.

Oppose it because this is a poorly thought out, badly put-together piece of bullcrap.

I'll be damned if I'll let the government insist I register with them and pay them money for the freedom to program, build websites and apps or propose tech-related ideas to my fellow Malaysians.

Also, there will be an open day for the suggestion to the formation of Board of Computing Professionals Malaysia (BCPM):

Tarikh (Date) : 13 Disember 2011 (Selasa/ Tuesday)
Masa (Time) : 9.30 pagi (AM) – 5.00 petang (PM)
Tempat (Venue) : Dewan Perhimpunan,
Aras 1, Blok C4, Kompleks C
Kementerian Sains, Teknologi dan Inovasi

P/S: My of opinion of this Bill: this is bullcrap. Period.