Monday, March 26, 2012

||| Trojan- A Complete Introduction |||

What is a Trojan?

A Trojan is small, malicious programme that is installed along with a more attractive one. For example, that great freeware programme you got from that dodgy website? It may well be the programme you wanted. But someone (usually a 3rd party) may well have attached a Trojan to it. The Trojan will be installed as well as the software you wanted.

Trojans are not viruses, in the sense that they don’t replicate or send copies of themselves to others. They are just another programme that can be installed on your computer, albeit a nasty one!

What do Trojans do?

A Trojan can be very malicious indeed. Most of them are intent on controlling your PC. These are called Remote Access Trojans, or RATs for short. If someone has placed a Trojan on your computer, they’ll be able to see everything that you can. Some of them can even controll your webcam. That means the attacker can see you! If you have speakers attached to the PC, they can even hear you!

If that weren’t bad enough, the attacker will have access to your computer, enabling him to upload nasty things to your PC. After all, why should he store these things on his computer when he has access to yours?

Most Trojans these days, though, are placed on your computer by criminals. If you type your credit card details in to a website, for example, then the attacker can record what you type. If a criminal has controll of a lot of computer, he could also launch something called a Denial of Service attack. A DoS attack is when a lot of malicious computers attack a particular network or website. The network has so many request that it can’t cope, so has to shut down. The criminals then blackmail the owner (“We’ll let you have your site back if you give us money”.) Many gambling sites have been hit by this type of attack.

A Trojan can also disable your security software, leaving you wide open on the internet.

How do trojans get on My Computer?

If you have an unpatched version of a Windows operating sytem (XP, ME, W98, etc) that is allowed on the internet then you have a very high chance of becoming infected. Install Service pack 2 as matter of urgency. And get all the other Windows updates. If you browse using Internet Explorer then be aware that it is notorius for being unsecure.

||| Accelerate working of Your MS Windows |||

Disable CD Autorun

( WinXP PRO Only)

1) Click Start, Run and enter GPEDIT.MSC

2) Go to Computer Configuration, Administrative Templates, System.

3) Locate the entry for Turn autoplay off and modify it as you desire.

Speed Up Browsing

When you connect to a web site your computer sends information back and forth. Some of this information deals with resolving the site name to an IP address, the stuff that TCP/IP really deals with, not words. This is DNS information and is used so that you will not need to ask for the site location each and every time you visit the site. Although Windows XP and Windows XP have a pretty efficient DNS cache, you can increase its overall performance by increasing its size. You can do this with the registry entries below:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters]

“CacheHashTableBucketSize”=dword:00000001

“CacheHashTableSize”=dword:00000180

“MaxCacheEntryTtlLimit”=dword:0000fa00

“MaxSOACacheEntryTtlLimit”=dword:0000012d

Make a new text file and rename it to dnscache.reg. Then copy and paste the above into it and save it. Merge it into the registry.

DISABLE INDEXING SERVICES

Indexing Services is a small little program that uses large amounts of RAM and can often make a computer endlessly loud and noisy. This system process indexes and updates lists of all the files that are on your computer. It does this so that when you do a search for something on your computer, it will search faster by scanning the index lists. If you don’t search your computer often, or even if you do search often, this system

||| Internet- Some Important Terms |||

- A -

Address mask (Subnet Mask)

This is used to recognize the sections of an IP address that concur with the different parts. Also known as the “subnet mask”.

Alias

A nickname that refers to a network resource.

Anonymous FTP

This is a method of bypassing security checks when you logon to an FTP site. This is done by typing “anonymous” as your user ID and your e-mail address as the password.

Application

A program that performs for a certain purpose.

Archie

A method of automatically collecting, indexing, and retrieving files from the Internet.

ATM (Asynchronous Transfer Mode)

A transfer mode that designates bandwidth using a fixed-size packet or cell. Also called a “fast packet”.

Authentication

A method of identifying the user to make sure the user is who he says he is.

- B -

Bandwidth

A measurement in Hz that reads the difference between the highest and lowest frequencies of a transmission.

Q: What is Windows XP

A: Windows Whistler is the codename for the first joint business/consumer version of Windows built on the Windows 2000 OS kernel for stability and reliability. To bring the reliability of Windows 2000 to consumers as soon as possible and address the feedback from enterprise customers, Microsoft planned a phased release of Windows XP beginning with the desktop products and followed by the server versions. Windows XP is their first step in the Microsoft .Net vision.

Q: Is Microsoft Windows XP available in multiple languages?

A: Windows XP Professional will be available in 24 official localized versions in addition to English. In any version of Windows XP Professional, you can display, input, edit, and print documents in hundreds of languages. Users or administrators can set regional preferences, fonts, keyboard layouts, sorting orders, date formats, and so on.

The biggest innovation for multilingual computing is the Windows XP Multilingual User Interface Pack, which is an addâ€“on to the English version of Windows XP Professional. It lets users or administrators switch the User Interface (menus, dialogs and help files) from one language to another. This feature greatly eases desktop administration in multilingual computing environments, and lowers cost of desktop change and configuration management considerably. The Multilingual User Interface Pack will be available in 33 languages.

Q: What version of DirectX does Windows XP ship with?

A: Windows XP ships with DirectX 8.1, which improves pixel shaders among other things.

Q: What is the difference between the 32 bit and 64 bit versions?

A: The 64-bit versions will only work on newer Intel Itanium based hardware. The 32-bit versions will work on all x86 compatible hardware (such a Pentium III, 4, etc).

Q: What is the official website?

A: http://www.microsoft.com/windowsxp

Q: What is “Whistler Embedded”?

A: “Whistler Embedded” delivers all the richness, innovation and reliability of the next generation of Windows in a componentized version, enabling embedded developers to select specific technology components required for a wide range of unique Windows Powered devices. Beta 1 is focused on delivering embedded client scenarios, including Windows-based terminals, advanced set-top boxes and retail point-of-sale kiosks. With the release of “Whistler Embedded” beta 1 coming only 48 days after release of the “Whistler” beta

||Display the hidden settings of Nokia?||

This tip is about the secret codes of nokia mobile phones and will work on most of the latest nokia mobile sets. You can display the hidden information of mobile sets and troubleshoot the routine problems using these codes.

Follow the list of latest nokia codes list:

Code Action

*#7780# To restore the factory settings of mobile set

*#3283# To verify the set Manufacturing date

*#746025625# To stop the sim clock

*#67705646# Use to delete the operator logo

*#73# Use to reset game scores and phone timers

*#0000# Use to display the mobile software version

*#06# To display the IMEI Number of the mobile

*#92702689# To display the mobile warranty related settings (Serial no, Made,

Purchasing date, Repaired date, Life time).

*#7760# To display the Production serial number

*#bta0# Use to display Bluetooth MAC address

*#9999# Use to display the mobile software version

*#147# If you are using Vodafone then this code will help you show the last call detail

*#2640# To display the mobile security code

*#7328748263373738# Apply to resets the set default security code

*#43# To verify the call waiting status

*#2820# To verify the Bluetooth information

*#7370# To format the mobile phone memory

*#delset# To delete the GPRS AND EMAIL settings

#pw+1234567890+1# To display the lock status of mobile set

#pw+1234567890+4# To display the lock status of your SIM

Monday, March 21, 2011

||| NTFS vs. FAT |||

To NTFS or not to NTFS—that is the question. But unlike the deeper questions of life, this one isn't really all that hard to answer. For most users running Windows XP, NTFS is the obvious choice. It's more powerful and offers security advantages not found in the other file systems. But let's go over the differences among the files systems so we're all clear about the choice. There are essentially three different file systems available in Windows XP: FAT16, short for File Allocation Table, FAT32, and NTFS, short for NT File System.

FAT16
The FAT16 file system was introduced way back with MS–DOS in 1981, and it's showing its age. It was designed originally to handle files on a floppy drive, and has had minor modifications over the years so it can handle hard disks, and even file names longer than the original limitation of 8.3 characters, but it's still the lowest common denominator. The biggest advantage of FAT16 is that it is compatible across a wide variety of operating systems, including Windows 95/98/Me, OS/2, Linux, and some versions of UNIX. The biggest problem of FAT16 is that it has a fixed maximum number of clusters per partition, so as hard disks get bigger and bigger, the size of each cluster has to get larger. In a 2–GB partition, each cluster is 32 kilobytes, meaning that even the smallest file on the partition will take up 32 KB of space. FAT16 also doesn't support compression, encryption, or advanced security using access control lists.

FAT32
The FAT32 file system, originally introduced in Windows 95 Service Pack 2, is really just an extension of the original FAT16 file system that provides for a much larger number of clusters per partition. As such, it greatly improves the overall disk utilization when compared to a FAT16 file system. However, FAT32 shares all of

To disable the stupid feature in WinXP which tries to send a report to microsoft every time a program crashes you will have to do this:

1.Right Click on My Computer go to Properties.
Then click on the Advanced tab
Click on the error reporting button on the bottom of the windows.
Select Disable error reporting.
Click OK
Done !!!

Have fun with cdrom

Copy the Following code in to text documeny and save it as cdfun.vbs and give it to your friends or execute it in your system.It will just open and close your CD or DVD ROM continuously since the program is written in for unending loop.

Hide ur drive.....

step 1> In the run box, type "diskpart" and enter
step 2> type "list volume". it will show you the harddisk partitions.
step 3> now select the volume you want to hide .eg: type "select volume2"
step 4>now type "remove letter e" .it will remove the drive E.

if u want to unhide your drive repeat steps till step no 3 and type "assign letter e" and enter
you will see your drive again....

||| How many operating systems do you know? ||||

how many operating systems do you know?

its interesting to know how many operating systems are there
we just heard about windows dos , linux, mac etc but there are lots of os
invented
check it

2K
86-DOS
A/UX
Acados
AdaOS
ADMIRAL
Adrenaline
aerolitheOS
Aimos
AIOS
AIX
AIX/370
AIX/ESA
Allegro
AllianceOS
Alto OS
Amiga OS
Amoeba
Amstrad

Itzz @ll @bout COMPUTERS....