topic Re: Recover a lost password from a RAR file in Operating System - Linux

Recover a lost password from a RAR file

'chris' — Mon, 17 May 2010 20:27:04 GMT

hi

Howto recover a lost password from a RAR file?

Re: Recover a lost password from a RAR file

Steven Schweda — Mon, 17 May 2010 23:26:12 GMT

Ask the person who specified it when the
file was encrypted?

Start guessing? (This can be automated.)

If it were easy to "recover a lost password",
then how useful would the encryption be?

Re: Recover a lost password from a RAR file

Prokopets — Tue, 18 May 2010 05:28:22 GMT

RAR has one of the best encrypting engines and the brute-force is _very_ slow. If you don't know even a length of the password, it's better to give up and don't lose the time.

Re: Recover a lost password from a RAR file

Michal Kapalka (mikap) — Tue, 18 May 2010 06:23:51 GMT

hi,

there are several method how to crack the lost password, but as somebody mentioned, its very good protected and to make some brute-force dictionary cracking is for me a loosing of time.

http://www.rarpasswordcracker.com/

http://www.apasscracker.com/products/rar.php

Its better to ask the Author of the archive for the password or try all possibles password that you was using.

mikap

Re: Recover a lost password from a RAR file

P Muralidhar Kini — Tue, 18 May 2010 11:20:44 GMT

Hi Chris,

The methods available to recover passwords use either the brute force method
and/or the dictionary based attacks.

* Brute force method
Trying every possible code/combination/password until the right one is found

* Dictionary Based Attack
Trying every word in the dictionary until the right one is found

Some Tools -
http://www.tunexp.com/advanced_rar_password_recovery/
http://www.rarpasswordcracker.com/
http://www.sharewareplaza.com/rar-password-recovery-download_9360.html

Good luck with the password recovery.

Regards,
Murali

Re: Recover a lost password from a RAR file

Steven E. Protter — Tue, 18 May 2010 14:20:08 GMT

Shalom chris,

Given enough time, crack can guess passwords in a file.

rar however as noted, is pretty good encryption. Any of the cracking methods above could take days or weeks to spit out a password.

Your system will be very slow in that instance.

If you have access to the console, you can boot the system into single user mode and simply reset the annoyingly forgotten password and move on.

It is not supposed to be easy.

SEP