July 2012

Types of Operating Systems

Sunday

OS is a system software which manage the computer hardware.
It provides basis for application software and it act as intermediary between user and computer hardware.
Types:
1.Command Line OS
2.Graphical User Interface OS

Command Line OS:
User interaction with computer by using commands and the response according to the respective command!
Eg: Disk Operating Systems (DOS)
Graphical User Interface OS:
User interaction with computer by using mouse and keyboard.
Eg: Windows OS, Linux,Unix,Mac.
Different versions of OS:
1.Microsoft Windows:
First version of Windows OS released in 1985 and most widely used are

Windows 8*
Windows 7
Windows Vista
Windows XP

2.Apple Mac OS
In 1984 launch a Macintosh Personal Computer and the Mac first version released in 1999.
Versions are:

Mac OS X Server 1.0 (Hera)
Public Beta (Kodiak)
Mac OS X Version 10.0 (Cheetah)
Mac OS X Version 10.1 (Puma)
Mac OS X Version 10.2 (Jaguar)
Mac OS X Version 10.3 (Panther)
Mac OS X Version 10.4 (Tiger)
Mac OS X Version 10.5 (Leopard)
Mac OS X Version 10.6 (Snow Leopard)
Mac OS X Version 10.7 (Lion)
Mac OS X Version 10.8 (Mountain Lion)

3.Unix OS:
Its a self contained, multitasking and multi user OS released in 1969
4.Linux OS:
Its a Open Source OS and which is popular for Server and Desktop OS.
Versions:

Ubuntu
Debian
Fedora
CentOS
RedHat
Freespire

New OSX Malware discovered

Sunday

Apple Mac Trojan named OSX/Crisis.
Discovered by Intego.
Intego is a Mac security software company founded in 1997.

They create backup, antivirus, antispam, data protection software, firewall for MAC OS X.
Now lets get back to our discussion
OSX/Crisis:
This threat is a dropper which creates a backdoor when it's run.
It installs silently, without requiring a password only in OSX 10.6,10.7 and Snow Leopard and Lion.
If the dropper runs on a system with Admin permissions it will drop a rootkit to hide itself.
With or Without Admin permissions this folder is created in the infected user's home:
~/Library/ScriptingAdditions/appleHID
only with Admin permissions,
/System/Library/Frameworks/Foundation.framework/XPCService
A new folder will be created.
It uses low level system calls to hide its activities

Intego suggest to use VirusBarrier X6 need to update to get protected from OSX/Crisis.

Free 50GB Storage space in Cloud

Sunday

ADrive is a new online storage service.
You have photos,videos,music and non confidential documents you want save and I suggest you to use Adrive to keep a Backup of it!
Features:

Prodecure:
You can sign up according to the your wish!
there will be 3 plans

Personal Plans
Business Plans
ADrive Enterprise

Click on SignUp in right top corner and then you will be directed to sign up page.ortherwise CLICK HERE
In left side down Check in Personal Basic and sign up and Enjoy!!!

ADrive Website

Use VLC Player as Video Convertor

Thursday

VLC Media Player is one of the popular player by VideoLAN company!

Some times we want to convert a video from one format to another so we go for Video Converter Software's.
I suggest there is no need to install third party software and make our system dump!
we can use VLC player to convert video files!
Let me tell you How!

First we want need VLC Player installed! If not download HERE

Now open the VLC Player!
Click on Media and select Convert/Save or simply press Ctrl+R and it will open a dialog box as shown below

Now Under File tab click on Add to add the video which you want to convert and press Convert/Save!

A next box will pop up and in that click on Browse.

Now Select the destination location and press open and save!

And now we are at the end of convertion. Under Settings option select what type of format you want to convert!

And Press Start and sit back for few min...
I think this was known trick for some ppl!

How to Skip or Bypass Adf.ly,Adfoc,Linkbucks

Sunday

Adf.ly,Adfoc,Linkbucks are URL shorteners which pays the owner when ppl browse shortened links and they are noa scam but paying ratio is not good.
Now will tell you How to Bypass Adf.ly, Adfoc, Linkbucks.

For Chrome User:
By Installing a extension named AdsFight..
Install it from HERE

For Mozilla Firefox User:
First you want to install Greasemonkey!Install it from HERE

then install AdsFight from HERE

If you hate to install extension then you can go with Online tool named DeAdf.ly
DeAdfly.ly is the site which bypasses the Adf.ly,Adfoc,Linkbuckes sites. Check DeAdf.ly HERE

Enable Hidden Windows Explorer UI

Thursday

Windows 7 & 8 has many features but they are hidden from ordinary user!
so we go for third party softwares to enable it.
I found a software that enables the Windows Explorer UI not Internet Explorer.
Software Name: AntiExplorer
Software Company: WinAero.

How to use:
1.Download the AntiExplorer HERE
2.Now run the .exe file for your suitable version.
If your are using 32bit means run x86 otherwise your are using 64bit use x64.

3.Select the effect of your desire.

4.Apply your speed limit.

5.Now click on Apply button.

6.Now a UAC settings tab will open click Yes.
7.Now your hidden WE UI is enabled.

Gmail Story

Thursday

Google Green!!
Gmail Story!
How a mail travels to destination and its Green!!
Watch the Story and in some places there will be play icon click on it & enjoy the Movie!!

Watch the Story HERE

Play Jigsaw Game in VLC Media Player

Sunday

VideoLAN is an Non profit Org which introduced the VLC Media Player to the world!
Jigsaw is the cool game to increase the mind power and also a time pass game!
Now will tell you how to play Jigsaw in VLC Media Player.
First you want to install the VLC Media Player. Get it from HERE and install it.
Now open the any video which you wish to play Jigsaw!

Now click on Tools tab and navigate to Effects and Filters or simply press Ctrl+E

Now go to Video Effects

Now in the Video Effects tab navigate to Geometry tab

In that enable Puzzle game and select how many rows and columns you want!

and Close it
Now you can play Jigsaw Game in VLC Media Player.

Nsoy the Game!!!

Protect your Pendrive from Autorun.inf

Sunday

It can be done in two methods

By Manual

By Third party software

Will tell you both now.

By Manual:

1) Open a command prompt by click Start -> Run. Type cmd and hit the Enter key.

2) In the command prompt, create a directory in the root directory of the USB drive: mkdir AutoRun.ini

3) Move into this new directory with command:
cd AutoRun.ini

4) Create a new directory with command:
mkdir a

5) Exit the command prompt window with command:
exit

Remove the USB-Disk from the computer and now its immune. And whenever you will plug it into a infected computer the USB won't get infected.

By Third party software:

Bitdefender USB Immunizer

The USB immunizer is BitDefender's response to this growing issue. This small utility is divided in two sections.

The Immunize option allows you to immunize your USB storage device or SD card against infections with autorun-based malware. Even if your storage device has been plugged into an infected computer, the piece of malware will be unable to create its autorun.inf file, thus annihilating any chance of auto-launching itself.

Download HERE
Thanks to Wazim who told about this!

Hide text in Image using Steganography

Saturday

Now you can also hide text in images!
ImageHide is an tool which allows you to hide text!

After installed all you have to do is to load the image in which you want to hide your text (Stenography) type the text and hit the Write data option.
You can also password protect the text so that it can only be opened with the help of a password.
Once you have completed the above steps then you can send the image to your friend and he/she can only open it with the imagehide software and the password that you have used.Once opened with imagehide the text can be read by your friend.So use Stenography for more secure communication.
Now run the tool
It opens as

Now click on Load and select the picture which you want to hide text

Now type the text in the below space

Now click on Write

Now the text is inserted in Picture.You can view it by pressing encrypt
Now you can save it and send to your friend.

The one disadvantage is that the your friend should have this tool to view the hidden text.
Download HERE

Protect your Computer using USB

Friday

We can protect the Computer using USB by using a software named Predator.

PREDATOR locks your PC when you are away, even if your Windows session is still opened.

Using Predator

First of all insert the USB drive.
Then run Predator Software.
Now just do your work.
When you want to leave the computer for some other work just remove the USB drive. Once it is removed, the keyboard and mouse are disabled and the screen darkens.
When you return back to your PC, you put the USB flash drive in place and keyboard and mouse are immediately released, and the display is restored.
Download HERE
Homepage HERE

Check Disk for error using CHKDSK

Thursday

Windows 7 has a disk checking toll known as CHKDSK CheckDisk!
Which was similar to the Scandisk in earlier versions of Windows.
In Windows 7 you can use CHKDSK in two ways:

By CMD
By TOOLs

Will tell you how to use it using tools
First open Computer and right click on the drive which you desire to scan.
Click on Properties

Now you will see a window like this

Now navigate to Tools tab

In tools tab you can see Error-checking option in which you can scan the disk!

Now click on Check Now

A new box named as Check Disk Local Disk(C:)// here C: is disk letter
now click on Start

If you try to scan a running disk it will show an error as

If you try to scan non running disk it will scan

and show the results as

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