Introduction:
First of all we would like to know what exactly are virus, Trojan horse and worms. Viruses, worms, and Trojans are malicious programs which enter to your computer without your permission and knowing that can cause damage, information losses, privacies leak to your computer .They can also slow down the Internet connections, and they might even use your computer to spread themselves to your friends, family, co-workers, and the rest of the internet. The good news is that with an ounce of prevention and some good common sense, you are less likely to fall victim to these threats. Think of it as locking your front door to protect your entire family for example you will never open anonymous mails or attached file and always keep you computer security up to date like latest firewall, antivirus programs and etc.
What is virus? A computer virus, according to Webster's Collegiate Dictionary, is "a computer program usually hidden within another seemingly innocuous program that produces copies of itself and inserts them into other programs or files, and that usually performs a malicious action (such as destroying data)". Two categories of viruses, macro viruses and worms, are especially common today. Computer viruses are never naturally occurring; they are always man-made. Once created and released, however, their spread is not directly under human control. One example of a virus is the Anna Kournikova virus, which comes in the form of a picture sent through email.
What are worms? Worms are very similar to viruses in that they are computer programs that replicate functional copies of themselves (usually to other computer systems via network connections) and often, but not always, contain some functionality that will interfere with the normal use of a computer or a program. The difference is that unlike viruses, worms exist as separate entities; they do not attach themselves to other files or programs. Because of their similarity to viruses, worms are often also referred to as viruses. A well-known example of a worm is the ILOVEYOU worm, which invaded millions of computers through email in 2000
What are Trojan horse? Named after the wooden horse the Greeks used to infiltrate Troy, a Trojan horse is a program that does something undocumented which the programmer intended, but that the user would not approve of if he or she knew about it. According to some people, a virus is a particular case of a Trojan horse, namely one which is able to spread to other programs (i.
On August 12, 2003, a computer worm was released called MSBlaster.B, which was distributed through two files “teekids.exe” ( which included code that directs compromised computers to attack the Microsoft domain name www.windowsupdate.com and a backdoor file “Lithium” ( which allows a way into a password protected system without use of a password and remote control a system). The worm itself targeted mostly Windows 2000 & Windows XP systems. If Windows NT or Windows 2003 servers do not have the appropriate patches, they too may be vulnerable. The function of the worm is to exploit the DCOM RPC vulnerability.
power to ward off the Greeks. The Trojans were known to be a race of
Beal, V. (2011, March 29). The difference between a computer virus, worm, and Trojan horse.
After coming home from a long day at school, I turn on my computer and go to the Internet to see "What's New!" Then all of a sudden I hear, "You've Got Mail!" I check my e-mail and it's a message from my friend in Alabama. It is warning me about a computer virus that is being spread, and that I should watch out. Thank goodness someone warned me about this. I said to myself, "This kind of stuff must be the work of those hackers that I hear so much about." But what exactly is a hacker, and what are they out to do?
...at proposed a new Worm Interaction Model which is based upon and extending beyond the epidemic model focusing on random-scan worm interactions. It proposes a new set of metrics to quantify effectiveness of one worm terminating other worm and validate worm interaction model using simulations. This paper also provides the first work to characterize and investigate worm interactions of random-scan worms in multi-hop networks (Tanachaiwiwa and Helmy, 2007). For the best possible solution against cyber attack, researchers use Mathematical modeling as a tool to understand and identify the problems of cyber war (Chilachava and Kereselidze, 2009). Such kind of modeling is supposed to help in better understanding of the problem, but to allow such models to be practically workable, it is extremely important to provide a quantitative interface to the problem through the model.
The Greeks are the ones who built the horse as a fake peace offering to the Trojans. They had men inside to destroy the city of Troy while everyone slept. The Trojans accepted the offering not knowing they’re fate. The people of Troy were partying and got drunk and fell asleep. Then the Greeks sacked Troy.
According to Webster's Revised Unabridged Dictionary, theft is, "The act of stealing; specifically, the felonious taking and removing of personal property, with an intent to deprive the rightful owner of the same" (Webster's 2). Before the advent of moveable type, no one had cause to apply this concept to information rather than physical property. If one were to steal a book, the act was easily recognized as of the same moral color as stealing a horse, a nugget of gold, or any other physical object. The thief?s possession of the stolen item constituted the rightful owner?s lack of it, a loss both real and measurable. Today, theft seems a hazier concept, due to the popularization and codification of Intellectual Property (IP) rights. IP rights differ from standard property rights in that they signify an individual's right of ownership over "intangible things" (Kinsella 3). Arguably, the most important such things are patents and copyrights. Patents protect inventions, and copyrights protect "original forms of expression" (Fisher 1). In both cases, the right to ownership amounts to ownership of an idea, not a physical object.
ICT and WORM sole purpose is creating cheap data, increasing ubiquitous cloud for processing and storage, and collecting data to use only once which would be available to multiple leaders in public
Malicious software in short known as Malware. It is also known as computer Contaminant. Similar to biological parasite, malware also reside in a Host. Malware will get installed on host without user’s consent. Generally a software is considered malware based on the intent of the creator...
...he Trojan horse, users should be familiar with all the programs that should normally run on their systems. Once there is an addition or alteration, it is easy to notice and investigate. Another technique that is often used by attackers involves using wrapping programs, that are combining both malicious and original code. Once run on the victim’s computer the program first installs malicious code, and then executes the original code.
Recently, the Internet has become the most significant technology in all over the world, which is not only used by the people to contact with each other but also utilized by the business organizations to become global (Taylor, Caeti, Loper, Fritsch & Liederbach, 2006). Computer and internet enable the business organizations to execute the Electronic commerce business model, which has become very popular. Computers and Internet are a powerful source in the success of globalization and international business. Computers are being used worldwide and due to this, cyber crimes are increasing continuously with a rapid growth (Cheeseman, 2006).
Malicious software, or simply malware, can be described as software that a computer user never authorized to be loaded. This means that the software can be found on user’s computer without his or her knowledge. Furthermore, a malware can be described as software that collects private information from any computer without user’s knowledge and authorization. As the name suggests, this software is malicious and can do great damage to a computer, mobile device, or other related devices. This damage can range from something as slight as altering the author’s name on a document to massive damage like making an entire device fail to function properly (Töyssy and Marko 109). The good news is that malwares can be controlled or prevented. As a matter of fact, it does not cost a fortune to keep a device safe from malware attacks. It also needs enough knowledge about them. In order to be able to do this, however, it is important to understand the various terminologies used to describe malicious software.
What is the “MALWARE”? A malware refers to software programs designed to damage or do other unwanted actions on a computer system. In Spanish, "mal" is a prefix that means "bad," making the term "bad ware" .Malware includes viruses, worms, Trojan horses, and spyware. Viruses, for example, can cause havoc on a computer's hard drive by deleting files or directory information. Spyware can gather data from a user's system without the user knowing it. This can include anything from the Web pages a user visits to personal information, such as credit card numbers.
A cyber crime called 'Bot Networks', wherein spamsters and other perpetrators of cyber crimes remotely take control of computers without the users realizing it, is increasing at an alarming rate. Computers get linked to Bot Networks when users unknowingly download malicious codes such as Trojan horse sent as e-mail attachments. Such affected computers, known as zombies, can work together whenever the malicious code within them get activated, and those who are behind the Bot Networks attacks get the computing powers of thousands of systems at their disposal.
Malware can survive in a number of ways say different sizes, shapes and also the purpose ranging from viruses to spyware and to bots. Malware in general is classified into two types. They are the concealing malware and infectious malware. In case of infectious malware, the malware code is said to spread all over which means that the software code shall replicate from one user to another and this goes on. In infectious malware, we need to consider two cases, which are called the viruses and the worms. Viruses are termed as the software that has executables within itself and causes the executables to spread when it is run. The second case called worms is a software which infects a computer and then spreads to others.