[X] My Assistant

Hello everybody!

The artist mentioned in the topic provides very well made animations on his site. Unfortunately the only way to obtain the HD versions of the aforementioned animations is through ZIP files which are password protected.

I've recently seen a comment on one of the galleries where two of the older passwords ("nyaa" and "kaitsushin") were mentioned. However my search in finding the newest one located in his most recent doujin has been unsuccessful so far.



Does somebody have an idea what it is?

This post has been edited by Soulblade777: May 7 2015, 21:16

Apparently the name of the doujin is

悪い子にはおしおきレ○プ

Also it seems like it came out around the end of April so maybe it's still too early to find it online?

This post has been edited by Soulblade777: May 10 2015, 17:41

The latest password is "mikkago". The other passwords are "nyaa", "kaitsushin", and "paradise".

Thank you John the Ripper <3. Let's hope the author keeps using short alphabetic passwords that are easy to bruteforce.

The latest password is "mikkago". The other passwords are "nyaa", "kaitsushin", and "paradise".

Thank you John the Ripper <3. Let's hope the author keeps using short alphabetic passwords that are easy to bruteforce.

Thanks a lot Huggarine and John the Ripper for providing the password!
I tried Bruteforcing the password as well but that would've take a couple of days.

Are you using rainbow tables?

Are you using rainbow tables?

No, just standard bruteforce (with --incremental=Lower) with an AMD 8-core CPU. I had to compile from source to get multicore support but it was worth it, I'm getting 15,000,000 tested passwords per second (it's fast because the zip file uses PKZIP with a weak encryption method).

Someone had already gotten the other passwords and based on those I could safely assume the password only contained lower case letters. The cracking itself only took 31 seconds.

Password to the two latest archives is "inaka".
I have to admit I was actually disappointed this time. I was expecting an hours-long epic battle between John and the zip file, but it was all over in just 3 seconds
I guess this is how women feel like...

Hello again everyone!
Kaitsushin recently updated his page with new download links.
Anyone interested in finding out the newest passwords yet again?

All of your previous sumissions were highly appreciated!

Hello again everyone!
Kaitsushin recently updated his page with new download links.
Anyone interested in finding out the newest passwords yet again?

All of your previous sumissions were highly appreciated!

cracked one, it's ' inaka '

going to crack a few other ones now, lets see...

edit:whoops, that one was already up, my bad. lets see if fcrack can churn out a few more...

This post has been edited by spamhunter: Aug 22 2015, 02:40

found a password for a few of the older ones that wasn't posted, it's ' 1493 '

pass is for kaitsushin-rum-HD-a, kogasa-a, and kaitsushin-aliceHD-a

On the latest ones, it seems he used a much longer password this time. C88 manga wasn't posted on the 16th either.

This has proven to be quite a challenge. I've been cracking kaitsushin-sakuyaLongHD.zip in lower case letter mode for about 9 hours. I'm up to 9+ character passwords now. I'm probably going to try Alpha next, then LowerNum, then Alnum, and after that a custom mode as a last resort (because ASCII would take forever).

i've tried:
fcrackzip for 24 hours @ 1million passes per second (only lowercase)
john the ripper @ 8 threads for about 20 hours @ 70 million passes per second (only lowercase)
accent zip recovery @ 500 million passes per second with a few modes that the 30 minute time window can spare.

so far, nothing.
bastard used a good one this time.

oh well, at least i got some knowledge with the zip crackers

i was surprised that john can't do CUDA or OpenCL via PKZIP, and that accent zip recovery is so darn fast. maybe i'll buy it sometime...

This post has been edited by spamhunter: Aug 23 2015, 02:36

@spamhunter
@Huggarine

Wow, thanks a lot for your efforts!
I guess it was just a matter of time until he'd switch to something more complicated...
Also I'm talking about the newest zips such as kaitsushin-sakuyaLongHD.zip that were made available during C88 just to avoid confusion on which downloads I mean.

If everything fails, we'll just have to wait until the scans of his newest doujinshi are being made available and someone translates the unknown password

wow guys, this thread is great.

just question. whic one of those password cracker that suitable for intel core I3 series. I dont have graphic cards.

only onboard intel HD 3000.

It does seem like the password is too complex to crack and we'll have to wait for the scan. I'll keep my PC running though, just in case I get lucky.

just question. whic one of those password cracker that suitable for intel core I3 series. I dont have graphic cards.

only onboard intel HD 3000.

Joh the Ripper community-enhanced version is what I recommend. Apart from fcrackzip (which is ancient and doesn't have multi-core support) it's the only free one I know that supports pkzip hashes (which we're trying to crack here).

theres no answer
Hiragana only ~5 character
Katakana only ~5 character

running...

The scan is out! The latest password is "umitsushin".

For those interested in the doujin itself, paste this into your torrent clients' link section: ISZ5E4GCYB5ZHKT73QWYJ4SZFHPI36EA

By my calculations it would've taken about 5 months to crack the password (on my machine) if I knew the password was 10 characters long. A custom mode that tries fragments and variations of the older passwords could've made it possible to crack this one. Gotta learn how to do that for the next time.

I had my machine running for 5 days straight for this password and I only just noticed that John tries to be "smart" about the password guesses and doesn't just "aaaa", "aaab", "aaac" style guesses. I found [www.reddit.com] this Reddit thread where the developers explain it a little. This also affects the length of guessed passwords, John doesn't try to exhaust the previous keyspace before moving on to the next one (i.e. first 8 character passwords, then 9 characer ones), it mixes things up and tries different lenghts. This also affected the potential completition time of my attempt (...about 8000 years) since I had the max length set to the default of 13. I'll also have to set that to 10 for the next time.

The scan is out! The latest password is "umitsushin".

For those interested in the doujin itself, paste this into your torrent clients' link section: ISZ5E4GCYB5ZHKT73QWYJ4SZFHPI36EA

By my calculations it would've taken about 5 months to crack the password (on my machine) if I knew the password was 10 characters long. A custom mode that tries fragments and variations of the older passwords could've made it possible to crack this one. Gotta learn how to do that for the next time.

I had my machine running for 5 days straight for this password and I only just noticed that John tries to be "smart" about the password guesses and doesn't just "aaaa", "aaab", "aaac" style guesses. I found [www.reddit.com] this Reddit thread where the developers explain it a little. This also affects the length of guessed passwords, John doesn't try to exhaust the previous keyspace before moving on to the next one (i.e. first 8 character passwords, then 9 characer ones), it mixes things up and tries different lenghts. This also affected the potential completition time of my attempt (...about 8000 years) since I had the max length set to the default of 13. I'll also have to set that to 10 for the next time.

Finally I can get rid of those zips!

Yes I noticed johns stupid behavior of mixing up various length passwords when he checks them, that weirded me out quite a bit.
I found 3 passwords pretty fast with the much slower fcrackzip, this cracker was going up the letters normally instead of mixing them up. This added with the xcode and nvidia framework cr*p I had to install just to compile john made me hate this tool.

Btw, accent zip recovery will go to about 11 or 12 letters (lowercase) in just 4 -6 hours. 500 mil to 1.5 bil on a top machine is incredible.. But you'll have to buy it to get through the 30 minute demo window.

This post has been edited by spamhunter: Aug 27 2015, 23:57

bravo

It seems there are some new animations with a new password. I'll see if I can get the password before the eventual scan comes out.

EDIT. This time I'm exhausting keyspaces one at a time, e.g. passwords with 7 or less characters first, then 8, then 9, etc.. And only lower case characters, of course. I'm currently doing 8 characters which will take about 5 hours. 9 characters will take 5 days. I might look into making some custom rules like excluding some rarely used characters (so far x hasn't been used in the passwords, for example) but I'd need to know something about the Japanese language and more specifically its romanization to build efficient custom modes. Any help regarding this would be appreciated.

EDIT2. I created a custom character set based on the [en.wikipedia.org] hepburn romanization chart (gojūon) and the previous passwords (excluding "paradise" and the number password). This speeds up the cracking quite a bit, since there are now only 22 characters in the set I can now get the 9 character space tested in about 31 hours. I suspect the password is at least 10 characters long though which is a bit discouraging since the 10 characters space will take about a month finish (assuming the password isn't found earlier than that, of course).

If anyone else wants to create their own character set it's done with with the command

CODE

john --make-charset=kaitsushin_v1.chr

.
For this you'll need to edit the john.pot file to contain only the characters you want to have in the character set, separated by a new line and a colon. This file contains the passwords you've previously cracked so if you want to keep them you need to save them somewhere else. Below is what the john.pot file I used to generate my character set.

CODE

:mikkago
:inaka
:umitsushin
:nyaa
:kaitsushin
:ka
:ki
:ku
:ke
:ko
:sa
:shi
:su
:se
:so
:ta
:chi
:tsu
:te
:to
:na
:ni
:nu
:ne
:no
:ha
:hi
:fu
:he
:ho
:ma
:mi
:mu
:me
:mo
:ya
:yu
:yo
:ra
:ri
:ru
:re
:ro
:wa
:ga
:gi
:gu
:ge
:go
:za
:ji
:zu
:ze
:zo
:da
:ji
:zu
:de
:do
:ba
:bi
:bu
:be
:bo
:pa
:pi
:pu
:pe
:po

EDIT3. 9 characters is done, no password found. 10 characters completition estimate is 3-4 weeks presuming I run it 24/7.

This post has been edited by Huggarine: Jan 21 2016, 05:52