There are many types of invaders in the computer world including virus's, worms and trojan horses. They come in many types and come into your computer in many ways. There are ways to protect your computer from these nasty things however, you must keep on protecting it and not let your guard down. According to wikipedia.com a virus is a "self replicating computer program that spreads by inserting copies of itself into other executable code or documents". Just as a biological virus spreads itself from cell to cell and host to host in humans a computer virus spreads from file to file and computer to computer. It has been argued whether the first viruses were malicious or just programming experiments that went out of control. Originally computer viruses were spread by primitive networks and by disks that became infected and were passed from one person to another. Many computers were originally infected by dreaded boot sector viruses but as technology has changed so has the way that viruses are delivered and boot sector viruses have all but vanished. A large majority of today's viruses are spread by e-mail attachments. Also most viruses now are infected executable files or are hidden in compressed zip folders. There are many types of macro virus scripts that will infect programs such as word processing and accounting programs by manipulating these scripts to transfer from one infected file to another. Viruses can infect a file in many different ways. Parasitic viruses modify the code of the infected file leaving it partially or fully intact and inserting the code somewhere at the beginning, the end, or in an empty area somewhere in the middle. Overwriting viruses just simply place there code over the code of the original program rendering it useless. Companion file viruses do not modify the original file but instead create a duplicate file containing the virus. Then when a user tries launching an the file the infected version launches first. A leading antivirus software company Kaspersky Labs says on there virus information website Viruslist.com that today the most common and dangerous computer threat is Trojan programs. There are eleven types of programs classified as Trojans; Backdoor Trojans, General Trojans, PSW Trojans, Trojan Clickers, Trojan Downloaders, Trojan Droppers, Trojan Proxies, Trojan Spies, Trojan Notifiers, ArcBombs, Rootkits. Of all these Trojan programs, Backdoor Trojans are classified as the most dangerous type and the most widespread.
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.
Malware, short for malicious software, is wide-spread in today’s computer market. Malware is software intended to gain sensitive information or access to a victim’s private system (“Who Creates Malware and Why?” par. 13). Many forms of malware exist: the major categories including viruses, ransom ware, worms, keyloggers, trojan horses and rootkits. Today, malware is most commonly used to steal victims’ personal information for financial gains, but malwares’ attention was not always this way. The first computer worms were written as harmless pranks.
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.
...ly, there will be no direct communication between PC programs and the outside world, which will eliminate potential cases of installing Trojans into the system. The firewall is also effective in barring system hackers; hence, there will be limited chances of getting an attack. In addition, McDowell (2006) asserts that it is crucial to have an antivirus program to detect Trojans, or viruses that bypass the firewall, which also protect against leakage of secret information such as passwords and credit card numbers. However, it is still highly advisable to use very strong password to secure crucial data, and maintain updated software by obtaining the latest patches (McDowell, 2006). In conclusion, it is inevitable to assert that security is indispensable in a personal computer as there are various schemes to steal and use personal information for illegitimate purposes.
... nor are they in any way perfect, as most antimalware systems run 6 months behind when worms are created. Nonetheless, it is better to have some protection than none so a decent anti-malware system is essential. The most important feature to have to defend yourself and your system against attacks from worms is a strong firewall set up. Your firewall should be limited to only essential ports, the ports that you yourself uses. This way it will almost completely shut unwanted access out of your machine.
One of the biggest worries and problems all internet users face today is Malware. Malware, short for malicious software, is a term that describes any software program designed to damage or do unwanted actions on a computer system. Some of these action may include disrupting computer operations, gathering sensitive information, gaining access to private computer systems or displaying unwanted advertising. The main types of Malware include the following, which we will go into more details about. (Contributor, Techterms.com, 2016)
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.
Is a computer virus similar to a human virus? Below is a chart that will show
The following report details some of the more common malicious code specifically viruses, explaining some of the damage, which these very powerful viruses can inflict on to any computer that it is not well prepared for this kinds of attacks.
Malicious code is a real danger to modern systems. Most systems nowadays do not work in isolation; they are more likely to be connected to other systems and sometimes they can even be dependent on them. Therefore an attack on one of the systems in the network is a potential attacking attempt to any other systems, with which it is interacting. Therefore, it is inevitable for any networked or Internet-connected computers to deal with malicious code attacks at some point. Businesses lose billions of dollars each year because of malicious code attacks. Responding to the attack and restoring all the data on the computers is a time-consuming and expensive task. It is a much better practice to try preventing it through organizing and maintaining effective defenses. However, it is important to keep in mind that there is no one general solution that can help to prevent all the attacks. Attackers are constantly looking for new ways to take advantage of systems’ vulnerabilities and find new ones. That’s why organizations have to not only defend themselves against existing attack methods, but also try to predict and prevent new attacking techniques. It means that computer and network security is a never-ending challenge and expense.
Living in a digital age we are all faced with the threat of exposing our private information every time we log on to the internet, because of this it is extremely important that people know how to protect theirselves from digital threats. In order for people, to protect themselves, they must be aware of the basic types of malicious software, how they are spread and how to combat them.
...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.
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.
In today’s information technology world, computer viruses or malware are huge problems for computer users. Viruses are generally referring to different types of Malicious software that are known as Trojans, adware, and spyware and worms. Thus individually they function differently, and try to damage the software on the computer, which sends information from the computer used to an outside source over the internet. Frederick B. Cohen (1991) defined the terms of computer virus as a ‘program that can infect other programs by changing them to include a possibly evolved copy of it ' (Frederick B, A Case for Benevolent Viruses 1991). A Computer virus spreads from one computer to another through copying it to a current executable code and this will result in being executed when the code has been attached to the program while it is running. Furthermore, by infecting property it is easy for the computer systems and networks used by the authorize...