Comments on: Howto Crack Rar, 7z, and zip files in Linux

By: Lenny

Lenny — Sun, 09 Oct 2011 19:06:26 +0000

This is taking some time, just doing it for fun on a slow computer.
Only getting 24-40 pwds/sec and the pass is 16 letters. Guess I won’t finish it

By: megalomania

megalomania — Thu, 08 Sep 2011 08:45:59 +0000

just add | grep 100% at end of line
sudo john --wordlist=/home/greg/all.lst --rules --stdout | xargs -I jtr 7z e -pjtr test.7z | grep 100%

By: Greg

Greg — Wed, 31 Aug 2011 23:52:45 +0000

I tried using rarcrack, too, and it didn’t seem all that helpful. So I installed john the ripper - I am using Suse. This is the line I used for cracking a 7z file:

sudo john --wordlist=/home/greg/all.lst --rules --stdout | xargs -I jtr 7z e -pjtr test.7z

With my test file it seems to work but there is nothing that stops it so it just continues on through the dictionary. How would I make a little script that shows the % through the dictionary and then it stops when it gets to a good one to open the 7z file?

Thanks so much for the help!

By: Jacob

Jacob — Sat, 06 Aug 2011 03:19:41 +0000

To all of those thinking they are burning through passwords by removing unrar:

Try cracking the test files. The password is ’100′ and you will fail. You’re big smile will turn into a big frown. Forget this program, its ridiculously slow.

By: m00ny

m00ny — Sat, 18 Jun 2011 10:25:06 +0000

for me removing the unrar package speeded the process up from 0 pwds/s to over 2000 pwds/s !!!

By: d3v1150m471c

d3v1150m471c — Sun, 15 May 2011 05:03:07 +0000

splice2 -c”unrar -pPASSWORD t file.rar” -t”All OK” -ACLNRS

https://sourceforge.net/projects/splicepy/files/

Problem solved. Enjoy ^_^

By: memedy

memedy — Fri, 24 Dec 2010 22:43:25 +0000

Thanks guys…

By: dimon

dimon — Thu, 21 Oct 2010 10:56:23 +0000

RarCrack! 0.2 by David Zoltan Kedves (kedazo@gmail.com)

Segmentation fault

By: 3Lm0

3Lm0 — Wed, 29 Sep 2010 09:16:12 +0000

worked for me! thanks

By: Cutty Flam

Cutty Flam — Sat, 11 Sep 2010 08:04:28 +0000

Wow what an awful program, no wonder Debian doesn’t include it. Instead, just install john (general password cracker, requires super user), from the repositories. Then use it with xargs and unrar, and let it do its thing.

sudo john --wordlist=/usr/share/john/password.lst --rules --stdout | xargs -I jtr unrar e -pjtr yoursillyfile.rar

By: Baracuda

Baracuda — Fri, 10 Sep 2010 22:08:03 +0000

ok…sorry, disregard my last post.I did not have the dev version of libxml…
Got it compiled, but now get the seg fault… Still trying…

By: Baracuda

Baracuda — Fri, 10 Sep 2010 21:56:38 +0000

I can’t get it to even compile..( I never could do the make, sudo make install dance very well anyways…) Ton of errors. I have everything installed that they posted that is needed…Tried in both sudo and root terminal.. Probably some noob mistake

Here’s what I get:
root@baracuda:/home/bob# cd Downloads
root@baracuda:/home/bob/Downloads# tar -xjf rarcrack-0.2.tar.bz2
root@baracuda:/home/bob/Downloads# cd rarcrack-0.2
root@baracuda:/home/bob/Downloads/rarcrack-0.2# make
gcc -pthread rarcrack.c `xml2-config --libs --cflags` -O2 -o rarcrack
/bin/sh: xml2-config: not found
In file included from rarcrack.c:21:
rarcrack.h:25:48: error: libxml/xmlmemory.h: No such file or directory
rarcrack.h:26:27: error: libxml/parser.h: No such file or directory
rarcrack.h:27:36: error: libxml/parserInternals.h: No such file or directory
rarcrack.h:28:25: error: libxml/tree.h: No such file or directory
rarcrack.h:29:28: error: libxml/threads.h: No such file or directory
rarcrack.c:30: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘pwdMutex’
rarcrack.c:33: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘status’
rarcrack.c:35: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘finishedMutex’
rarcrack.c: In function ‘savestatus’:
rarcrack.c:46: error: ‘xmlNodePtr’ undeclared (first use in this function)
rarcrack.c:46: error: (Each undeclared identifier is reported only once
rarcrack.c:46: error: for each function it appears in.)
rarcrack.c:46: error: expected ‘;’ before ‘root’
rarcrack.c:47: error: expected ‘;’ before ‘node’
rarcrack.c:48: error: ‘xmlChar’ undeclared (first use in this function)
rarcrack.c:48: error: ‘tmp’ undeclared (first use in this function)
rarcrack.c:49: error: ‘status’ undeclared (first use in this function)
rarcrack.c:50: error: ‘root’ undeclared (first use in this function)
rarcrack.c:52: error: ‘finishedMutex’ undeclared (first use in this function)
rarcrack.c:53: error: ‘node’ undeclared (first use in this function)
rarcrack.c:55: error: ‘pwdMutex’ undeclared (first use in this function)
rarcrack.c:56: error: expected ‘)’ before ‘xmlChar’
rarcrack.c:66: error: expected ‘)’ before ‘xmlChar’
rarcrack.c: In function ‘loadstatus’:
rarcrack.c:87: error: ‘xmlNodePtr’ undeclared (first use in this function)
rarcrack.c:87: error: expected ‘;’ before ‘root’
rarcrack.c:88: error: expected ‘;’ before ‘node’
rarcrack.c:89: error: ‘xmlParserCtxtPtr’ undeclared (first use in this function)
rarcrack.c:89: error: expected ‘;’ before ‘parserctxt’
rarcrack.c:96: error: ‘status’ undeclared (first use in this function)
rarcrack.c:99: error: ‘root’ undeclared (first use in this function)
rarcrack.c:103: error: ‘parserctxt’ undeclared (first use in this function)
rarcrack.c:104: error: ‘node’ undeclared (first use in this function)
rarcrack.c:108: error: ‘XML_SUBSTITUTE_BOTH’ undeclared (first use in this function)
rarcrack.c:127: error: ‘finishedMutex’ undeclared (first use in this function)
rarcrack.c: In function ‘nextpass’:
rarcrack.c:170: error: ‘pwdMutex’ undeclared (first use in this function)
rarcrack.c: In function ‘status_thread’:
rarcrack.c:182: error: ‘finishedMutex’ undeclared (first use in this function)
rarcrack.c:188: error: ‘pwdMutex’ undeclared (first use in this function)
rarcrack.c: In function ‘crack_thread’:
rarcrack.c:206: warning: comparison between pointer and integer
rarcrack.c:208: error: ‘finishedMutex’ undeclared (first use in this function)
rarcrack.c:205: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
rarcrack.c: In function ‘init’:
rarcrack.c:250: error: ‘pwdMutex’ undeclared (first use in this function)
rarcrack.c:251: error: ‘finishedMutex’ undeclared (first use in this function)
rarcrack.c:283: warning: format ‘%s’ expects type ‘char *’, but argument 3 has type ‘char (*)[300]’
rarcrack.c:317: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result
rarcrack.c: In function ‘main’:
rarcrack.c:351: error: ‘status’ undeclared (first use in this function)
rarcrack.c:353: error: ‘pwdMutex’ undeclared (first use in this function)
rarcrack.c:354: error: ‘finishedMutex’ undeclared (first use in this function)
make: *** [all] Error 1
root@baracuda:/home/bob/Downloads/rarcrack-0.2# make install
install -s rarcrack /usr/bin
install: cannot stat `rarcrack’: No such file or directory
make: *** [install] Error 1

Thanks..

By: d3v1150m471c

d3v1150m471c — Thu, 09 Sep 2010 05:34:20 +0000

for everyone switching to unrar-free, stop. it’s not actually cracking your passwords. it’s going faster because unrar-free is receiving an error and only printing its usage because it doesn’t have the same command line options as unrar-nonfree.

By: MVM

MVM — Mon, 06 Sep 2010 15:23:53 +0000

For people getting bad performance: install unrar-free and remove unrar-nonfree (just “unrar” on Ubuntu 10.04). This increased the speed from 45 pw/sec to nearly 2000 pw/sec on my computer.

Also, I get a segfault when not specifying the file type. So I have to do “rarcrack my_pics.rar --type rar” instead of only “rarcrack my_pics.rar”

By: d3v1150m471c

d3v1150m471c — Sun, 05 Sep 2010 02:15:54 +0000

i could be wrong but i believe segmentation fault is a buffer overflow. it’s common with C/C++ when the code isn’t written appropriately.

By: Mr. Singh

Mr. Singh — Sat, 04 Sep 2010 21:25:33 +0000

I HAD THE SAME PROBLEM “segmt fault”. BUT it was MY FAULT. I was using “-threads and -type” INSTEAD OF “--thread and --type”(WITH TWO “-” SYMBOLS)

MAY BE THIS WILL HELP SOME OF US !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

By: d3v1150m471c

d3v1150m471c — Fri, 03 Sep 2010 06:29:42 +0000

my god this program is awful… i’m almost finished with a friggin’ bash script that cracks 20 digit passwords, that includes all the fun non-alphabetic and non-numeric crap, too. i’ll port it to run with unrar when i finish and i’ll upload a link.

By: baidu

baidu — Sun, 29 Aug 2010 13:56:35 +0000

I tried the rarcrack to crack a small file having a password of just 3 characters and it took a lot of time to do something and the end result is junk…it could not crack the rar file…I’m going to uninstall this crap thing…just a waste of time.

By: vlan7

vlan7 — Sat, 21 Aug 2010 10:34:04 +0000

For those having seg faults on Ubuntu.

Try specifying the filename first.

sudo rarcrack archive.rar --type rar --threads 4

It works for me.

By: Yogesh

Yogesh — Sun, 15 Aug 2010 04:57:08 +0000

I am too facing the Segmentation fault ,
Then I ran in GDB then it is showing Seg fault in vfprintf()
(gdb) bt
#0 0x002b150b in vfprintf () from /lib/tls/i686/cmov/libc.so.6
#1 0x00351cb6 in __printf_chk () from /lib/tls/i686/cmov/libc.so.6
#2 0x0804a0b9 in init ()
#3 0x0804a44f in main ()
(gdb)

Help me.