Sunday, 28 April 2013

What is Direct Action Viruses?

These viruses mainly replicate or take action once they are executed. When a certain condition is met, the viruses will act by infecting the files in the directory or the folder specified in the AUTOEXEC.BAT. The viruses are generally found in the hard disk’s root directory, but they keep on changing location.

Example:

  • Vienna virus

Source: http://typeslist.com/

What is Macro Viruses?

These viruses infect the files created using some applications or programs that contain macros such as doc, pps, xls and mdb. They automatically infect the files with macros and also templates and documents that are contained in the file. They hide in documents shared through e-mail and networks.

Example:
  • Relax
  • bablas
  • Melissa.A
  • 097M/Y2K

source: http://typeslist.com/

Types of Computer Viruses

  • Macro Viruses
  • Memory Resident Viruses
  • Overwrite Viruses
  • Direct Action Viruses
  • Directory Virus
  • Web Scripting Virus
  • Multipartite Virus
  • FAT Viruses
  • Companion Viruses
  • Polymorphic Virus
  • Worm
  • Trojans
  • Email Virus
  • Browser Hijacker
  • Boot Infectors

source: http://typeslist.com

Wednesday, 24 April 2013

How to Disable Command Prompt in Windows 7

You have to go to Run by Pressing Windows Key + R.
Type gpedit.msc and hit enter.
Goto User Configuration -> Administrative Templates -> System
In the right-side pane, set "Prevent access to command prompt" to either Not Configured or Disabled.
It's done.

Sunday, 21 April 2013

What is Computer Virus

A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can also replicate themselves. All computer viruses are man-made. A simple virus that can make a copy of itself over and over again is relatively easy to produce. Even such a simple virus is dangerous because it will quickly use all available memory and bring the system to a halt. An even more dangerous type of virus is one capable of transmitting itself across networks and bypassing security systems.

Source: http://www.webopedia.com

How to Transfer Balance From One Mobile To Other Mobile

BSNL
To use this service, you need to type SMS in this format: Gift < SPACE > < Receiver’s Number > < SPACE >< Amount > and send it to either 53733 or 53738.
For example, Gift 9876543210 50.
Limitations -You can transfer amount from Rs.5 to Rs.50 only. The receiver should be active from atleast for 30 days and sender should be active for atleast 3 months .

AIRTEL

Just Dial USSD code *141#
A window will appear where you can see many option.
Select first option i.e Share Talk Time .
Just type mobile number ( receiver’s no ). 
Limitations - You can transfer Rs. 5 to Rs. 30  only. And after you have done with the transfer , you should have at least Rs. 10 balance . You can do this 5 times a day.

IDEA

Type - *567*< Receiver’s Mobile Number >*< Amount>#.
Limitations- You can transfer Rs.5 to Rs.100 only. You will be charge Rs.2 per transaction balance only once in a day to a particular number.

TATA DOCOMO

You have to just send a simple message for doing this.
The format for message is -  BT<SPACE>Mobile Number<SPACE>Amount 
and send it to 54321 .Example – BT 8149461048 50.
Limitations – You will be charged Rs.2 for every balance transfer. The sender should be customer of Tata Docomo from atleast 90 days and receiver from 30 days.

VODAFONE

Dial  *131*< Amount >*< Receiver’s Mobile Number ># , here the amount is the balance or money to be transferred to the receiver .You don’t need to give space in between.
Limitations –You can transfer Rs. 3 to Rs.30 only . Balance can be transfer only once in a day to the same number. Processing fee may differ according to the amount you are transferring. It cost Re.1 for transferring Rs.5

AIRCEL

Type *122*666# and call. Soon a window will appear , this will show various amounts to be transferred.
Amount may range for Rs.5 to Rs.100 .
Select the amount and then enter the receiver’s  number , press OK.
Limitations - You can transfer amount to a single number once a day. Rs .2 will be charged for every transfer .

RELIANCE

Dial *367*3#
Enter *312*3# and mobile number
Enter balance amount
Enter PIN. Default PIN is 1.

UNINOR

Dial *202*< Mobile Number >*< Amount >#.
Mobile number is the receiver number and amount is the balance to be transferred. 
Limitations –Processing fee is Rs.2 for every transaction . You can transferred amount of Rs.5 to Rs.50 . The transaction between the same number can occur only once in a day.

Wednesday, 17 April 2013

How to Disable Task Manager in Windows 7

You have to go to Run by Pressing Windows Key + R.
Type gpedit.msc and hit enter.
Goto User Configuration -> Administrative Templates -> System
In the right-side pane select Ctrl+Alt+Del Options--> set " Remove Task Manager " to either Not Configured or Disabled.
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