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Take care while saving password in Mozilla Firefox


Mozilla Firefox is the popular browser holds around 22% of the global market share. It surpasses internet explorer in many aspects like security, fastness, variety of plugins and addons, etc. It has been experienced that people start browsing from Internet explorer (Because it is the default browser of Microsoft windows) subsequently switch over to Firefox due to multiple reasons. Not going to too much details, let’s come to the topic. Browsers using different techniques to save the passwords . Retrieval of the saved passwords are not a difficult task.

Extreme care must be taken while saving the password in Firefox because it is very easily accessible to anyone without using any tools . If you are using a single personal computer then it will not be  an issue but if you are browsing from a cyber cafe or a shared  computer,  then any one can see your saved passwords.

How to view the saved passwords


Open Firefox go to Tools > Options

In this select Security tab, there you can see the ” Saved password” button. Click on that, It will display the site address, user name. To view the saved password click on “show password” button. It will display all saved passwords.

Remember : Deleting history and cookies  and all offline data will not delete the saved password. If you want to delete the saved passwords click the “remove all” button.If you have accidentally saved the password in a shared machine then don’t forget to remove the passwords by following the above mentioned steps.

Setting a Master password to protect the stored passwords

If you are using your personal computer it is advisable to protect all your saved passwords with a master password. For this click tools > options> security> enable ” use master password” option, then a pop up window will come up to enter a master password. If you enter a master password then you will be asked to enter this password once per session. It is important that you have to remember the master password.

If you have some important documents you would like to protect from public access, it is very simply to password in Word and Excel documents. They allow you assign passwords to individual documents easily.


Follow the steps bellow:

1. OPEN your document that you want to password.

2. Click the TOOLS tab, then Options/Security Options (or General Options if youre using Word 2007 or Excel).

3. Enter a password that you know you can easily remember at anytime  you want to open the document.

4. Click OK and you are done.

Thats all you have to do to keep your documents protected with password.

What is FZC? FZC is a program that cracks zip files (zip is a method of compressing multiple files into one smaller file) that are password-protected (which means youre gonna need a password to open the zip file and extract files out of it). You can get it anywhere - just use a search engine such as altavista.com.
FZC uses multiple methods of cracking - bruteforce (guessing passwords systematically until the program gets it) or wordlist attacks (otherwise known as dictionary attacks. Instead of just guessing passwords systematically, the program takes passwords out of a "wordlist", which is a text file that contains possible passwords. You can get lots of wordlists at www.theargon.com.).
FZC can be used in order to achieve two different goals: you can either use it to recover a lost zip password which you used to remember but somehow forgot, or to crack zip passwords which youre not supposed to have. So like every tool, this one can be used for good and for evil.
The first thing I want to say is that reading this tutorial... is the easy way to learn how to use this program, but after reading this part of how to use the FZC you should go and check the texts that come with that program and read them all. You are also going to see the phrase "check name.txt" often in this text. These files should be in FZCs directory. They contain more information about FZC.
FZC is a good password recovery tool, because its very fast and also support resuming so you dont have to keep the computer turned on until you get the password, like it used to be some years ago with older cracking programs. You would probably always get the password unless the password is longer than 32 chars (a char is a character, which can be anything - a number, a lowercase or undercase letter or a symbol such as ! or &) because 32 chars is the maximum value that FZC will accept, but it doesnt really matter, because in order to bruteforce a password with 32 chars youll need to be at least immortal..heehhe.. to see the time that FZC takes with bruteforce just open the Bforce.txt file, which contains such information.
FZC supports brute-force attacks, as well as wordlist attacks. While brute-force attacks dont require you to have anything, wordlist attacks require you to have wordlists, which you can get from www.theargon.com. There are wordlists in various languages, various topics or just miscellaneous wordlists. The bigger the wordlist is, the more chances you have to crack the password.
Now that you have a good wordlist, just get FZC working on the locked zip file, grab a drink, lie down and wait... and wait... and wait...and have good thoughts like "In wordlist mode Im gonna get the password in minutes" or something like this... you start doing all this and remember "Hey this guy started with all this bullshit and didnt say how I can start a wordlist attack!..." So please wait just a little more, read this tutorial till the end and you can do all this "bullshit".

We need to keep in mind that are some people might choose some really weird passwords (for example: e8t7@$^%*gfh), which are harder to crack and are certainly impossible to crack (unless you have some weird wordlist). If you have a bad luck and you got such a file, having a 200MB list wont help you anymore. Instead, youll have to use a different type of attack. If you are a person that gives up at the first sign of failure, stop being like that or you wont get anywhere. What you need to do in such a situation is to put aside your sweet xxx MBs list and start using the Brute Force attack.
If you have some sort of a really fast and new computer and youre afraid that you wont be able to use your computers power to the fullest because the zip cracker doesnt support this kind of technology, its your lucky day! FZC has multiple settings for all sorts of hardware, and will automatically select the best method.

Now that weve gone through all the theoretical stuff, lets get to the actual commands.
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Bruteforce
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The command line youll need to use for using brute force is:

fzc -mb -nzFile.zip -lChr Lenght -cType of chars

Now if you read the bforce.txt that comes with fzc youll find the description of how works Chr Lenght and the Type of chars, but hey, Im gonna explain this too. Why not, right?... (but remember look at the bforce.txt too)

For Chr Lenght you can use 4 kind of switches...

-> You can use range -> 4-6 :it would brute force from 4 Chr passwors to 6 chr passwords
-> You can use just one lenght -> 5 :it would just brute force using passwords with 5 chars
-> You can use also the all number -> 0 :it would start brute forcing from passwords with lenght 0 to lenght 32, even if you are crazy i dont think that you would do this.... if you are thinking in doing this get a live...
-> You can use the + sign with a number -> 3+ :in this case it would brute force from passwords with lenght 3 to passwords with 32 chars of lenght, almost like the last option...

For the Type of chars we have 5 switches they are:

-> a for using lowercase letters
-> A for using uppercase letters
-> ! for using simbols (check the Bforce.txt if you want to see what simbols)
-> s for using space
-> 1 for using numbers

Example:
If you want to find a password with lowercase and numbers by brute force you would just do something like:

fzc -mb -nzTest.zip -l4-7 -ca1

This would try all combinations from passwords with 4 chars of lenght till 7 chars, but just using numbers and lowercase.

*****
hint
*****

You should never start the first brute force attack to a file using all the chars switches, first just try lowercase, then uppercase, then uppercase with number then lowercase with numbers, just do like this because you can get lucky and find the password much faster, if this doesnt work just prepare your brain and start with a brute force that would take a lot of time. With a combination like lowercase, uppercase, special chars and numbers.


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Wordlis
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Like I said in the bottom and like you should be thinking now, the wordlist is the most powerfull mode in this program. Using this mode, you can choose between 3 modes, where each one do some changes to the text that is in the wordlist, Im not going to say what each mode does to the words, for knowing that just check the file wlist.txt, the only thing Im going to tell you is that the best mode to get passwords is mode 3, but it takes longer time too.
To start a wordlist attak youll do something like.

fzc -mwMode number -nzFile.zip -nwWordlist

Where:

Mode number is 1, 2 or 3 just check wlist.txt to see the changes in each mode.
File.zip is the filename and Wordlist is the name of the wordlist that you want to use. Remember that if the file or the wordlist isnt in the same directory of FZC youll need to give the all path.

You can add other switches to that line like -fLine where you define in which line will FZC start reading, and the -lChar Length where it will just be read the words in that char length, the switche works like in bruteforce mode.
So if you something like

fzc -mw1 -nztest.zip -nwMywordlist.txt -f50 -l9+

FZC would just start reading at line 50 and would just read with length >= to 9.

Example:

If you want to crack a file called myfile.zip using the "theargonlistserver1.txt" wordlist, selecting mode 3, and you wanted FZC to start reading at line 50 you would do:

fzc -mw3 -nzmyfile.zip -nwtheargonlistserver1.txt -f50

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Resuming
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Other good feature in FZC is that FZC supports resuming. If you need to shutdown your computer and FZC is running you just need to press the ESC key, and fzc will stop. Now if you are using a brute force attack the current status will be saved in a file called resume.fzc but if you are using a wordlist it will say to you in what line it ended (you can find the line in the file fzc.log too).
To resume the bruteforce attack you just need to do:

fzc -mr

And the bruteforce attack will start from the place where it stopped when you pressed the ESC key.
But if you want to resume a wordlist attack youll need to start a new wordlist attack, saying where its gonna start. So if you ended the attack to the file.zip in line 100 using wordlist.txt in mode 3 to resume youll type

fzc -mw3 -nzfile.zip -nwwordlist.txt -f100

Doing this FZC would start in line 100, since the others 99 lines where already checked in an earlier FZC session.

Well, it looks like I covered most of what you need to know. I certainly hope it helped you... dont forget to read the files that come with the program