Kali Linux Hacking Tutorials. Don't want to read the theory? Just want to see if your password has been leaked.

How To Install Java 7 On Kali Linux

Click here or scroll down. Very few people, even within the company/website have direct access to the databases. In a naive world, the database would contain your plaintext passwords. However, since there are hackers doing SQL injection attacks to dump the database data, it's helpful to keep the password hashed/ encrypted. This would mean that even if someone has access to the table, he would see your username, email address, and hashed password, but not the plain- text password. Those who don't know about hashing may wonder how does the website check if you are typing the correct password during login, if the site itself doesn't know you password. Well, to understand that, you must understand what hashing is.

How To Install Java 7 On Kali Linux

Home; Blog; How to Create MultiBoot USB ( Windows Really Nice Guide: Must read; Okayish guides: May not read xD. Install Kali in VMWare; USB Install (Kali Installation is not our speciality, read up.

You can read it up on wikipedia for a technical idea, but I'll (grossly over- )simplify it for you. For example, mixing two colors is easy, while finding out the constituent colors of a color mixture isn't quite that easy. Multiplying two large (prime) numbers is easy, but given a huge prime number, it isn't easy to find the two prime factors which multiplied result in that number. On the other hand, figuring out the plain- text password from the hash (d@A2q. Aawqq. 21. 10. 9) is almost impossible.

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If you typed out some other password, say . Note that while the hashing function gives different outputs for most strings, every once in a while, there may be collisions (two strings may have the same hash). This is very very very rare, and shouldn't be of any concern to us.

Forgot Your Password - Ever wondered why almost all websites give you a new password when you forget your old one, instead of just telling you your password. Well, now you know, it turns out that they themselves don't know your password, and hence can't tell you. When they offer you a chance to change your password, they just change the corresponding hash in their tables, and now your new password works. How hashes are cracked - I wrote earlier that hash functions are easy to go one way, but almost impossible to go the other. The task of going the other way can be accomplished by bruteforce method.

Basically, suppose someone had the password . Now, a hacker who only has access to the hashes can hash all the passwords in alphabetical order and then check which hash matches.

When he tries 'aaaa', the hash is not d@A2q. Aawqq. 21. 10. 9, it is something else. Till he reaches 'pass', he gets a hash which doesn't match  d@A2q. Aawqq. 21. 10. 9. But for 'pass', the hash matches. So, the hacker now knows your password. If the passwords are sufficiently complex, the hashing algorithm is secure, and salt (explained later) is used, then it's quite unlikely that the hackers would be able to get many passwords from the database dump.

So, even if Facebook DB is leaked, your passwords are most probably safe. Unfortunately, most probably is not something one can work with, especially when you have so much to loose in case the 0. So, after a DB leak, the website often asks all it's users to change their passwords (eg. Also, since you might be using the same password on different websites, it's important that you change your password everywhere. Some websites don't hash your passwords, and store them in plain- text instead. If their database is leaked, the hacker has immediate access to millions of accounts on that website, plus possibly 1.

For example, 0. 00webhost database had plain- text passwords, and it was leaked. I personally hosted a site there once, and my account was compromised as well.

But this still isn't the worst part. The hackers often dump the databases publicly. The responsible ones let the website know that their security sucks, and asks them to inform their customers about the leak and get their passwords changed.

After sufficient time is given to the website to act, the hacker would often dump the database publicly. To see the extent of this, take 0. The first search result for . The password I was using 3- 4 years ago is there in the database.

That very password is probably still there on some of the websites that I signed up for 3- 4 years ago but haven't you them since then (and hence didn't update the password). Problem 1 : Suppose there's an hashing scheme X. Now this is a very secure scheme and every website uses it.

Now, there'a guy who has a lot of computational power and  he computes the hashes of all possible letter combinations under the scheme X.

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Kali Linux 1. 0. 9 (3. VMware & Virtual. Box. Kali Linux team has announed the release of Kali Linux 1. August, 2. 01. 4. Release announement “Now that we have caught our breath after the Black Hat and DEF CON conferences, we have put aside some time to fix an annoying bug in our 1. ISO releases related to outdated firmware as well as regenerate fresh new ARM and VMware images (courtesy of Offensive Security) for our new 1.

With this release come a few more updates worth mentioning. We are pleased to announce that we have updated our Raspberry Pi Kali image to support the new B+ model so that now it works out of the box. This single image now supports all Raspberry Pi models. We have also included two more images to our Kali ARM image collection for the Odroid U3 and Cubox- i ARM computers.” Further more you can read about this release here. You can download VDI image for Virtual. Box & VMDK image for VMware from here.