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  • Virtualization - The new technology evelution

    Virtualization, in computing, is the creation of a virtual (rather than actual) version of something, such as a hardware platform, operating system, a storage device or network resources.....

  • http://ittechnologies.blogspot.com/2011/04/common-security-vulnerabilities-in-e.html

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    Most of these attacks have utilized vulnerabilities that have been published in reusable third-party components utilized by websites, such as shopping cart software and poor design of such websites. Other factor is user awareness of security vulnerabilities.

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Showing posts with label Ethical hacker. Show all posts
Showing posts with label Ethical hacker. Show all posts
Posted by Priyan Fernando - - 0 comments

This hack will show you how to reset Windows administrator password (for Win 2000, XP, Vista and Win 7) at times when you forget it or when you want to gain access to a computer for which you do not know the password.
Most of us have experienced a situation where in we need to gain access to a computer which is password protected or at times we may forget the administrator password without which it becomes impossible to login to the computer. So here is an excellent hack using which you can reset the password or make the password empty (remove the password) so that you can gain administrator access to the computer. You can do this with a small tool called  Offline NT Password & Registry Editor. This utility works offline, that means you need to shut down your computer and boot off your using a floppy disk, CD or USB device (such as pen drive). The tool has the following features.
  • You do not need to know the old password to set a new one
  • Will detect and offer to unlock locked or disabled out user accounts!
  • There is also a registry editor and other registry utilities that works under linux/unix, and can be used for other things than password editing.
 

How it works?

 
Most Windows operating systems stores the login passwords and other encrypted passwords in a file called sam (Security Accounts Manager). This file can be usually found in \windows\system32\config. This file is a part of Windows registry and remains inaccessible as long as the OS is active. Hence it is necessary that you need to boot off your computer and access this sam file via boot. This tool intelligently gains access to this file and will reset/remove the password associated with administrator or any other account.
The download link for both CD and floppy drives along with the complete instructions is given below
Offline NT Password & Reg Editor Download
It is recommended that you download the CD version of the tool since floppy drive is outdated and doesn’t exist in today’s computer. Once you download you’ll get a bootable image which you need to burn it onto your CD. Now boot your computer from this CD and follow the screen instructions to reset the password.
 

Another simple way to reset non-administrator account passwords

 
Here is another simple way through which you can reset the password of any non-administrator accounts. The only requirement for this is that you need to have administrator privileges. Here is a step-by-step instruction to accomplish this task.
1. Open the command prompt (Start->Run->type cmd->Enter)
2. Now type net user and hit Enter
3. Now the system will show you a list of user accounts on the computer. Say for example you need to reset the password of the account by name John, then do as follows
4. Type net user John * and hit Enter. Now the system will ask you to enter the new password for the account. That’s it. Now you’ve successfully reset the password for John without knowing his old password.
So in this way you can reset the password of any Windows account at times when you forget it so that you need not re-install your OS for any reason. I hope this helps.
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Posted by Priyan Fernando - - 0 comments

ADSL-RoutersAlmost half of the Internet users across the globe use ADSL routers/modems to connect to the Internet however, most of them are unaware of the fact that it has a serious vulnerability which can easily be exploited even by a noob hacker just like you. In this post I will show you how to exploit a common vulnerability that lies in most ADSL routers so as to gain complete access to the router settings and ISP login details.
Every router comes with a username and password using which it is possible to gain access to the router settings and configure the device. The vulnerability actually lies in the Default username and password that comes with the factory settings. Usually the routers come preconfigured from the Internet Service provider and hence the users do not bother to change the password later. This makes it possible for the attackers to gain unauthorized access and modify the router settings using a common set of default usernames and passwords. Here is how you can do it.
Before you proceed, you need the following tool in the process
Angry IP Scanner
Here is a detailed information on how to exploit the vulnerability of an ADSL router.
Step-1: Go to www.whatismyipaddress.com. Once the page is loaded you will find your IP address. Note it down.
Step-2: Open Angry IP Scanner, here you will see an option called IP Range: where you need to enter the range of IP address to scan for.
Suppose your IP is 117.192.195.101, you can set the range something as 117.192.194.0 to 117.192.200.255 so that there exists atleast 200-300 IP addresses in the range.
 
Step-3: Go to Tools->Preferences and select the Ports tab. Under Port selection enter 80 (we need to scan for port 80). Now switch to the Display tab, select the option “Hosts with open ports only” and click on OK.
IP Scanner
I have used Angry IP Scanner v3.0 beta-4. If you are using a different version, you need to Go to Options instead of Tools
 
Step-4: Now click on Start. After a few minutes, the IP scanner will show a list of IPs with Port 80 open as shown in the below image.
IP Scanner
 
Step-5: Now copy any of the IP from the list, paste it in your browser’s address bar and hit enter. A window will popup asking for username and password. Since most users do not change the passwords, it should most likely work with the default username and password. For most routers the default username-password pair will be admin-admin or admin-password.
Just enter the username-password as specified above and hit enter. If you are lucky you should gain access to the router settings page where you can modify any of the router settings. The settings page can vary from router to router. A sample router settings page is shown below.
Router Settings Page
 
If you do not succeed to gain access, select another IP from the list and repeat the step-5. Atleast 1 out of 5 IPs will have a default password and hence you will surely be able to gain access.
 

What can an Attacker do by Gaining Access to the Router Settings?

By gaining access to the router settings, it is possible for an attacker to modify any of the router settings which results in the malfunction of the router. As a result the target user’s computer will be disconnected from the Internet. In the worst case the attacker can copy the ISP login details from the router to steal the Internet connection or play any kind of prank with the router settings. So the victim has to reconfigure the router in order to bring it back to action.
 

The Verdict:

If you are using an ADSL router to connect to the Internet, it is highly recommended that you immediately change your password to prevent any such attacks in the future. Who knows, you may be the next victim of such an attack. 
Since the configuration varies from router to router, you need to contact your ISP for details on how to change the password for your model.

Warning


All the information provided in this post are for educational purposes only. Please do not use this information for illegal purposes.
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Posted by Priyan Fernando - - 0 comments

Protect from Keyloggers
Keyloggers have been a major problem today as it does not require any prior knowledge of computers to use it. So hackers mainly use keyloggers to steal your passwords, credit card numbers and other confidential data. Below are some methods through which you can protect your computer from keyloggers:
 

Use a Good Antivirus

This is the first and basic step that you need to take in order to protect your computer from keyloggers. Use a Good antivirus such as Kaspersky, Norton or Mcafee and update it regularly.
 

Use a Good Antispyware

Since keyloggers are basically spywares, if you are a frequent user of Internet then you could be exposed to thousands of keyloggers and spywares. So you should use a good antispyware such as NoAdware.
 

Antilogger can be Handy

Antiloggers are programs that detect the presence of keyloggers on a given computer. Over past few years, I have tested a lot of anti-logging programs and have found Zemana Antilogger as the best antilogger.
Zemana
Normally a keylogger can be easily detected by a Good Antivirus program, but hackers use some methods such as hexing, binding, crypting and similar techniques to make it harder to be detected by antivirus programs. In this case Zemana Antilogger comes handy as the program is specially developed to protect your system against harmful keyloggers.
Zemana Antilogger
 

Online Scanning

When ever you receive a suspicious file, you scan it with online scanners such as Multi engine antivirus scanner which scans your file with 24 antivirus engines and reports it back to you if the file is recognized as a virus or spyware. This ensures that none of the malicious programs can escape from being detected as there are 24 different antivirus engines are involved in the scanning process.
 

Sandboxie

Sandboxie is another great program to help you protect your computer against harmful keyloggers and spywares. Sandboxie runs your computer in an isolated space which prevents your program from making permanent changes to other programs in your computer.
When ever you receive a file that looks suspicious, just run the program with Sandboxie so even if it is a keylogger or any other virus it will not make permanent changes to your computer system.
Sandboxie
To run a program in Sandboxie follow the steps as mentioned below:
1. Open sandboxie and click on sandbox menu on the top
2. Now goto Default sandbox
3. Then click on run any program
4. Now select the file you wish to run in sandboxie and click open
 

Keyscrambler

Keyscrambler is one of the best protection against keyloggers that you can have, Keyscrambler is a small program which encrypts your typed keystrokes so even if the victim has installed a keylogger on your system, he or she will get encrypted keys. Keyscrambler currently supports Firefox, Internet explorer and other applications, however its premium version supports more than 160 applications.
Hope you liked my post! Pass the comments.
This is a guest post by Rafay baloch who is an 18 year Computer engineering student, Ethical hacker, Tech blogger and an Internet marketer, He blogs at his blog Learn How to Hack and he is the writer of the book “A Beginners Guide To Ethical Hacking“
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