Can You Crack It solved

Back in November Geek Native was involved in surfacing a mysterious site and asked is big money behind Can You Crack It?.

The answer is both yes and no. Mainstream press have now revealed who was actually behind the game; and it’s the British spy headquarters GCHQ. The Guardian reveals that Can You Crack It is designed to fast track the recruitment of cyber-spies.

If you want a go yourself then pop over to Can You Crack It. There’s no letter higher than F in the sequence and that should speak volumes to people who know even just a little HTML however you’ll need full on coding skills to get as far as the solutions that have been shared with the public.

Here’s the image as text:

eb 04 af c2 bf a3 81 ec   00 01 00 00 31 c9 88 0c 
0c fe c1 75 f9 31 c0 ba   ef be ad de 02 04 0c 00 
d0 c1 ca 08 8a 1c 0c 8a   3c 04 88 1c 04 88 3c 0c 
fe c1 75 e8 e9 5c 00 00   00 89 e3 81 c3 04 00 00 
00 5c 58 3d 41 41 41 41   75 43 58 3d 42 42 42 42 
75 3b 5a 89 d1 89 e6 89   df 29 cf f3 a4 89 de 89 
d1 89 df 29 cf 31 c0 31   db 31 d2 fe c0 02 1c 06 
8a 14 06 8a 34 1e 88 34   06 88 14 1e 00 f2 30 f6 
8a 1c 16 8a 17 30 da 88   17 47 49 75 de 31 db 89 
d8 fe c0 cd 80 90 90 e8   9d ff ff ff 41 41 41 41

What happens when you convert it to ascii decimal?

235 4   175 194 191 163 129  236   0   1   0   0   49  201 136 12 
12  254 193 117 249 49  192  186   239 190 173 222 2   4   12  0 
208 193 202 8   138 28  12   138   60  4   136 28  4   136 60  12 
254 193 117 232 233 92  0    0     0   137 227 129 195 4   0   0 
0   92  88  61  65  65  65   65    117 67  88  61  66  66  66  66 
117 59  90  137 209 137 230  137   223 41  207 243 164 137 222 137 
209 137 223 41  207 49  192  49    219 49  210 254 192 2   28  6 
138 20  6   138 52  30  136  52    6   136 20  30  0   242 48  246 
138 28  22  138 23  48  218  136   23  71  73  117 222 49  219 137 
216 254 192 205 128 144 144  232   157 255 255 255 65  65  65  65

Update

There’s a larger solution on Pastebin. However, Can You Crack It looks to be a puzzle in many pieces.

Update 2

The URL www.canyoucrackit.co.uk/soyoudidit.asp does something interesting. It’s being spread as the solution. Or it could be a honeytrap – you know, if you’re paranoid.

Update 3

This has been a lovely puzzle – with plenty of ‘false solutions’ and dead ends. However, it has been solved. One of the best walkthrough is by 17 year old Davee at Lolhax.

  • Leave a comment below and follow on Facebook to stay in touch with the community.
45 comments
Millhouse19762005
Millhouse19762005

 mohjwjonedddp can you get a phone number out of this for me

Cahipster69
Cahipster69

Answer is Pr0t3ct!on#cyber_security@12*12.2011+

WTF, can they maybe try something a little harder :)

Dan
Dan

I done it too and I'm 12.

I lie, I'm 19 and done a Copy and Paste Job, I'll take the job anyway thanks.

Jazzy
Jazzy

i applied and look where i went

Getme
Getme

GREEEEEAT job!

SOOOOOO hard to find...

Get it: Pr0t3ct!on#cyber_security@12*12.2011+

It was a good puzzle, but I earn nearly 10X £25,000 as an MD...

kn
kn

come on people... the answer to the puzzle is Pr0t3ct!on#cyber_security@12*12.2011+

Fasdf
Fasdf

David Kelly - puts you off ever applying for a job at GCHQ

Mingo0022
Mingo0022

Here is the answer: get a life!!

kurrapica
kurrapica

how come on the 1st of December when you posted this, it was stated that what is left is only 6 hours? i've just checked this thing today and it says that i have 7 days, 11 hours, 52 minutes, and 40 seconds???

Steven Nguyen
Steven Nguyen

Okay, I found the answer.

It's this. - Pr0t3ct!on#cyber_security@12*12.2011+

Sdasdasd
Sdasdasd

Pr0t3ct!on#     partial solution 

Guestemail
Guestemail

If you just type the hex code in, you get a DOS program. Run that and it prints a URL to a lump of JavaScript. Copying the output of the java program is a C program. You use the original matrix of values as inputs to the C program, and that runs a program, and tells you it's done it, then the program hangs. If you look at the stack trace for the program (it appears to the computer that it's crashed, and therefore you can look at what it left) and amongst that is says something positive and then the key above. I pasted it in and it worked

Pr0t3ct!on#cyber_security@12*12.2011+

2Dtheelitenoob
2Dtheelitenoob

the answer is: Pr0t3ct!on#cyber_security@12*12.2011+

ExTraTor
ExTraTor

I think I find out the algorithm... but I have no time at all to code it... if somebody wants to... prove it:

"CHALLENGE" continues means http://en.wikipedia.org/wiki/Challenge-response_authentication

the countdown starting time is the key real ticket time.

the real code is behind the png... so in the black area -thats why png not jpg- (codebreaker.jpg and code-bg.jpg from code-bg.jpg the size of the png should be cropped from the middle)

hex text are two blocks...one is stands for challenge and other is for response.

It should be this or something similar....

Peter
Peter

Pr0t3ct!on#cyber_security@12*12.2011+

Me
Me

Answer= Pr0t3ct!on#cyber_security@12*12.2011+

Aaaaaa
Aaaaaa

The answer is "puck you, you pucking pucker"

Aef
Aef

why bother for a 25k job?

Sdfdsffdfdfd
Sdfdsffdfdfd

What a terrible clue!

Get the comment from the png file.

I used python.

Compile with a 32 bit compiler and you'll get then run.

[*] allocating page aligned memory

[*] setting page permissions

[*] copying payload

[*] adding dump_mem payload

[*] executing payload..GET /15b436de1f9107f3778aad525e5d0b20.js HTTP/1.1Download http://crackthecode.co.uk/15b436de1f9107f3778aad525e5d0b20.jsEdit the js file to build a vm and voila

Dave_delaney
Dave_delaney

This article title is misleading and simply an SEO ploy! I feel ashmed that I have given your website a hit and I have blocked it from all future searches.

"Can you crack it Solved" is the title.

Is the solution in here? NO!All you have is a weak link saying you solved who posted it. Not good enough! Scam artists!

Nicholas Misson
Nicholas Misson

THANK YOU, YOU STUPID IDIOT IT NOT TO BE TOLD BUT NO YOU GAVE IT AWAY I HOPE U GET KILLED.

Andrew Girdwood
Andrew Girdwood

That's a great solution. I've added a third update to the original post to link to that.

guest
guest

the png file in the website also contains a code for another way you can crack it.

ExTraTor
ExTraTor

nice, but it is just a honeypot I think... (the challenge continue.... which means it haven't solved yet).... it could have more solutions (why is two black area in background which are black.. but not all pixel black enough.... it could be 1px as well for the same design.... too large jpgs...)

Dancereden
Dancereden

omg how did u figure the code out

Jepcb25
Jepcb25

that is what they are waiting for"  lets see how many idiots sit there all week when you can just post resume on website" "stupid americans"  lol

Troll
Troll

Great pension and the ability to strike if they try and take it away from you?

Wako123
Wako123

i have solved this. the answer is - A564TYHG91333FUF

Just sayin'
Just sayin'

Lots of solution chat on the blog post now, though.

Troll2
Troll2

£25,000 a year isn't bad. The average is £40,000 for a family with two people working...

Also, if you read what you get, they offer great holidays (starting at 22, raising to 30), plus 10 days public holidays, flexible work days...

PERC RO
PERC RO

IO HO TROVATO LA SOLUZIONE MA NON ME LA PRENDE

Trackbacks