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Overcoming Limitations Of Signature Scanning -Applying Triz To Improve Anti-Virus Programs, Umakant Mishra

Umakant Mishra

A virus signature is a sequence of bytes that may be found in a virus program code but unlikely to be found elsewhere. Signature scanning is a method of detecting a virus by scanning a target program to detect the presence of any virus signature. If the signature is found then the target program is deemed infected, otherwise the target program is deemed uninfected.

Signature scanning is the most popular method of virus scanning and is adopted by all anti-virus programs. Signature scanning is capable of detecting more than 80% of viruses. It uses a simple logic and uses less …

Solving Virus Problems By Anti-Virus Developers- A Triz Perspective, Umakant Mishra

Umakant Mishra

The anti-virus developers play a very significant role in dealing with the computer viruses. They analyze the problems of different levels of users and find solutions for each of those problems. Their goal is not just to sell the product and make profit out of it. They undertake much greater responsibility to ensure that their product meets the expectations of the users and deals with the viruses efficiently.

Different levels of users dealing with computer face different types of problems. The developer must ensure that the product meets the needs of various levels of users and network administrators. The developer …

Improving Speed Of Virus Scanning- Applying Triz To Improve Anti-Virus Programs, Umakant Mishra

Umakant Mishra

As the number of viruses increases the amount of time to scan for those viruses also increase. This situation is worsened because of the increasing number of files typically stored in a computer system. Besides more complex tests are required to detect the modern day’s intelligent viruses. Thus a combination of all these factors makes a full virus scan very lingering and resource consuming. With thousands of types of viruses and gigabytes of storages, a typical virus scanning may take several hours. Because of this reason many users don’t like to virus scan their computers unless so required.

This article …

Detecting Boot Sector Viruses- Applying Triz To Improve Anti-Virus Programs, Umakant Mishra

Umakant Mishra

The boot sector virus infects the boot record of the hard disk or floppy disks. It gets loaded onto the memory every time the computer is booted and remains resident in the memory till the computer is shut down. Once entered it alters the boot sector of the hard disk and remains in the hard disk permanently until the system is totally damaged and fails to boot.

While analyzing the problem from TRIZ prospective we try different possibilities to avoid boot sector viruses, such as, Can we do away with boot record? Can we avoid booting from floppies? Can we …

Solving Virus Problems By Computer Users- A Triz Perspective, Umakant Mishra

Umakant Mishra

The knowledge on TRIZ helps us analyzing a problem. Analysis is an important step in problem solving because the same event may be causing different problems (or benefits) to different people under different conditions. Some solutions may be addressing a problem in a short term or narrow perspective while giving rise to other problems or disadvantages. A good solution should be ideal and holistic in approach and should lead to no other problems or negative consequences.

When we analyze the problem of computer virus we find that different types of computer users face different types of problems and seek to …

An Introduction To Virus Scanners, Umakant Mishra

Umakant Mishra

The main functions of an anti-virus program are, (i) Virus prevention and file protection, (ii) Virus scanning and detection, (iii) Removing virus from infected files, and (iv) Recovering damaged files and objects.

An anti-virus program employs various methods to detect and remove viruses. The two popular methods of detecting viruses are signature scanning and behavior monitoring. However each of these methods has its strengths and weaknesses.

As the detection gets more sophisticated so are the virus programmers. The virus programmers also try to go one step beyond the anti-virus mechanism and create intelligent viruses which pose more and more difficult …

An Introduction To Computer Viruses, Umakant Mishra

Umakant Mishra

The computer virus is a problem to computer users at all levels including students, home users, corporate users, system administrators, corporate managers and even the anti-virus manufacturers. The viruses are written by people with malefic intentions to trouble the innocent users.

There are many types of viruses are boot sector viruses, file viruses, worms, Trojan horses, macro viruses etc. Each of these has many different variants. The older viruses were transmitting through floppies. Some older viruses like boot sector viruses are very rare nowadays as nobody boots from floppies. The modern day viruses transmit more through networks and emails. Macro …