Computer Viruses
A computer virus is an illegal and potentially damaging computer program designed to infect other software by attaching itself to any software it contacts. In many cases, virus programs are designed to damage computer systems maliciously by destroying of corrupting data. If the infected software is transferred to or accessed by another computer system, the virus spreads to the other system. Viruses have become a serious problem in recent years, and currently, thousands of known virus programs exist (Reed 85-102)b.
Three types of viruses are a boot sector virus, file virus, and Trojan horse virus. A boot sector virus infects the. When the infected boot program executes, the virus is loaded into the computer’s memory. Once the Virus is in memory, it can spread to any floppy disk inserted into the computer. A file virus inserts virus codes into program files… The virus then spreads to any program that accesses the infected file. A Trogan horse virus (named after the Greek myth) hides within or is designed to look like s legitimate program.
Some viruses interrupt processing by freezing a computer system temporarily and then displaying sounds or messages. Other viruses contain time bombs or logic bombs. A time bomb is a program that performs an activity on a particular date. A logic bomb is a program that performs an activity when a certain action occurs, such as an employee being terminated. A worm, which is similar to a virus, copies itself repeatedly until no more memory of disk space remains.
To find computer viruses, anti-virus programs have been developed. Besides detecting viruses, anti-virus programs also have utilities to remove or repair infected programs and files. Some damaged files cannot be repaired and must be replaced with uninfected archive files. The table below outlines some techniques used to protect computer systems.
Table
Techniques for virus Protection and System Archive
Using Virus Protection Software Backing Up Your System
Install virus protection software on every computer system Develop a regular plan for copying and storing important data and program files.
Before use, scan every floppy disk with a virus scan program to check for viruses. Implement a backup plan and adhere to its guidelines.
Also, implement patch management and keep up to date with anti-malware and anti-spyware updates. This helps in the summarization of the possible threats the College can face in certain scenarios and explains how to protect against them.
Imagine this; you are sitting at your desk looking at a bunch of pictures. Just a normal scene, what could go wrong? Suddenly, you’re attacked by deadly things that are trying to steal your personal information like your credit card numbers, email address, all your passwords, everything. Could this be the work of ninjas? No (bet that is what you first thought though). What about the FBI? No. Then what was it? It was a virus. If you hadn’t figured it out by now, you were looking at pictures online using Google images (for all you Bing fans, I’m sorry but Google is much better). You were downloading pictures from Google and one of them happened to contain a virus and it was downloaded with one of the pictures. How do I know this is a virus? The answer is that I don’t. I didn’t give enough symptoms to diagnose this. To the pros at hacking and security, you may know that viruses are not the only threat. If you are new to the world of computers, you might not. The three types of malware that will try to harm your PC or your data in any way are Trojans, worms, and the most famous, viruses. These three are very different and all are terrible for you and your PC.
The hanta virus is not a new foe to humanity. This mysterious and sometimes fatal disease has plagued humanity for over 1000 years. This virus, most likely originating in China over 1000 years ago, is transmitted by human contact with mice. Only relatively recently has the hanta virus captured the attention of the United States. Although the hanta virus has been known for such a long time, there is little known about the virus. In the United States most cases are found in the southwestern part of the country, although cases have been reported from all four corners of the country. Recently, there have been successful tests done on prospective vaccines for the hanta virus. Despite this, strains of the hanta virus kill many people a year for lack of an effective medicine or vaccine (www.pharminfo.com).
Often technology provides some of the most cost effective and fastest communication through various networks like the internet such that one can easily interact without any difficulties. In today’s world, information technology is considered as an entity, this is because more and more systems have become interdependent to the internet, so without it these systems will fail to continue with their normal operations (Riedman,2017) . Information technology is a sector that needs to be properly secured from various security threats such as cyber-attacks, espionage, spyware, physical theft cases or malicious attacks from viruses such issues may occur and lead to loss of data, physical damage of hardware or unauthorized access to private and confidential documents. I would recommend installation of backups for the systems to avoid disruptions, duplicates should also be made and stored in a quite different system from the original document. The owners should also ensure the systems are secured to avoid unauthorized access and to prevent environmental
At the Aim Higher College there have been recently discovered malware on the campus systems that are due to many recent attacks. I used an Anti-virus protection software called AVG on the computer systems on campus and ran a whole computer scan. The results came back very quick of numbers of malware being high and medium priorities that these should not be taken lightly. Furthermore, the scan found many viruses, Trojans, and malicious software and applications.
To stay safe from many different forms of viruses, the best way to go is to download a couple different kinds of anti-virus programs. Harley says it is almost impossible to get through three different anti-virus programs. He also says that it is easily solved when it comes to Trojans, worms, viruses, and malware. If you do not grant access to unidentified or unsafe programs, then it is very hard for viruses to be granted access onto your computer.
The history of cybercrime goes back to 1971 and the first computer virus called the Creeper which was created by Bob H. Thomas, who was a BBN engineer (Dalakov, Meltzer, and Phillips). BBN which stands for Bolt, Beranek and Newman, is now Raytheon BBN Technologies (“About”, Dalakov). A computer virus is a program that is created to cause damage to a computer or perform other malicious acts (204). The Creeper virus was designed to infect the ARPANET network. The ARPANET, which stands for Advance Research Projects Agency was set up by the U.S. Government as an agency in 1969 to provide a network of computers that would connect various academic and research organizations; it was the predecessor of the Internet (“Internet”, Morley, and Parker).
Hantavirus is a virus in the Bunyaviridae family of viruses. Dr. Lee Ho Wang from Korea discovered Hantavirus in the early 1950s. Though the virus is commonly found in rodents, it does not cause disease in the rodents. Disease results when the virus is transmitted to humans. A common way of contracting Hantavirus is from breathing in dust that has been contaminated by an infected rodent’s saliva, feces or urine or the infected dust gets into broken skin. It is also transmitted by the bite of an infected rodent. So far, it has not been confirmed that Hantavirus can be passed on from person to person. The most common places to contract Hantavirus are Korea, China or most countries in Asia. In Korea, Hantavirus seems to have two major “seasons;” May to June and October to November are the times of year when the disease is more prevalent because the rodent populations are higher during these times. There are two forms of Hantavirus, the mild illness found in Scandinavia, and the more severe illness found in the Far East and Central Europe.
The protection of your network requires a level of network security. If you do not have security on your network, then you are capable of being hacked or receiving malware, spy, virus, and lots more. There are many programs or applications that can help detect and prevent strange activities on your computer, but there is also ways that you can help prevent anything from happening. Creating a password for your network is a good start toward protection of your computer. Try to make the password something only you would know, and maybe throw some numbers in there as well to maximize protection. It is good to know who all is on your network and internet; because if someone were to log on to your internet from a distance, they could plant viruses and other things into your files on the network. Quite a bit of problems occur in network when file sharing takes place in a work place to copy or manage files. Most of the time when this happens, no one sets the security setting up themselves,...
Lastly, by implement security features to the computer systems also helps the computer systems from failure. It can be done by using password or control the network access. With that, an authorized user cannot access to the network or computer systems easily. It helps prevent the data and information in the computer systems be stolen. It also true that there are many ways computer systems might be failure even there are many ways that have been done to avoid it. But, the above ways is between the best ways can be performed as a precautionary alert to prevent it from happen.
Store the backups somewhere besides PC. If you fall victim to a Trojan attack, you can recover photos, music, movies, and personal information like tax returns and bank statements. McAfee PC Protection Plus provides essential protection from viruses, spyware, and hackers along with automatic backups of hard drive.
Malicious code, also known as malware, installed on a computer provides an attacker with the control over this machine. Therefore, malware can be defined as “a set of instructions that run on your computer and make your system do something that an attacker wants to do”. It is more common to see malicious code to be implemented in binary executable files. However, it can be implemented in almost any computer language. Attackers have used a huge number of scripting languages, word processing macro languages and a h...
...ntial information from a user. Luckily, there are reliable ways of defending against them. The most reliable way is to install strong security software that has the capacity to defend against the multifaceted forms of threats. Avoiding P2P file sharing sites and scanning email attachments before downloading them are also a surefire way of protecting a computer against malware threats. Basic acts like using an updated browser and allowing Windows updates to install and update themselves are also necessary to keep a machine safe. Furthermore, checking validity of individual website addresses and installing authenticated software can also help a computer user remain safe from potential data theft and possible damage of useful programs. It may also pay good dividends to backup files. In case of a lethal malware attack, backed-up files can always be recovered easily.
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.
In today’s days malware is designated as a software which aims to disturb a computer with the consent or permission of the owner. This term “Malware” is used by computer professionals to describe a varied forms of destructive, annoying and intrusive software code. This word “Malware” is used to indicate all types of malware which include a true set of viruses.