A Computer Virus Is a Computer Program That Can Copy Itself

The users are recommended to scan the computer with an anti-malware program in case the user detect any out of the ordinary activities of the

Data Miners is also software that is used to search email and others with intentions of locating confidential information that can be sold or utilized for ads. This is a very dangerous form of spyware as it can be stealth like and a user would not even know they were infected. Trojan horses is another type that appears to act as something that they are not and utilize program names that many people may use in order to get someone to execute them. Browser Hijackers can reroute a home browser to a site in which they operate and can also function as a proxy so when an individual begins to browse through the internet, you are searching through their server and giving them the ability to observe your every move (Admin,

Memory Resident Virus is one type, they usually fix themselves inside the computer memory. They get activated every

Let’s say user (A) download an execution file (EXE) on his-her PC and double click on that file, if this file is infected the virus works based on the written code by the hacker/ attacker/ intruder and copy some files into the system. In case, user (A) does not have virus protection, the virus works perfect in destroying that computer or sending information from this computer to the attacker email. Viruses not only designed to destroy PC’s, but also designed to get information from

Rootkit – Rootkit is a software that is downloaded onto a computer to ide the compromised operating system. This can allow other viruses or malware to come and make it look like it’s a necessary file for the computer. Even if you use an anti-virus, it will look at it but will think it’s a necessary file for the computer. The longer the rootkit is installed the harder it is to undo the damages

Computer virus is a program that can copy itself and infect a computer without the permission or knowledge of the user. Viruses perform some type of harmful activity such as accessing private information or corrupting

If the software is not up-to-date it will likely not have the most recent security threats in its database to look for when scanning, basically it will just think that an infected file is safe and not catch it, leaving it to continue to threaten and cause the system harm.

A common method of infection of a Windows computer is for a 'dropper' program to be run on a computer that then downloads a 'payload' file which actually does the malicious work. The initial dropper file is usually programmed to delete itself to avoid detection. The payload file would then remain active on the computer and is programmed to carry out certain tasks (e.g., pop-up adverts, warnings that you are infected and need to buy protection (scareware), encrypt personal files and demand a ransom for unlocking them (ransomware), contacting a command and control server to await 'orders' for exactly what to do, etc.) In this more common scenario, because the payload file has to remain active so Sophos AV can easily acquire a sample of the file and see if prevention from infection is already covered (e.g., in Sopho's existing library of file detection, or through our intelligent heuristic detection methods). If required an update can be published and Sophos users who enable Sophos Live Protection are immediately protected - those who disable Live Protection with receive the update (along with Live Protection users)

* They can clean a file system or disk of viruses once they have been found. This is done by scanning a database for established remedies, most antivirus solutions erase a virus immediately and it is expected that the recipient of a virus informs the sender straight away so that the source can be eliminated.

Viruses and worms are malicious programs that self-replicate on computers or through computer systems without the user being cognizant. Worms are a series programs that repeat themselves from system to system minus the use of a host fie. Worms use methods to infiltrate remote computers and launch replicas of themselves like email messages or coping files to an accessible disk. A computer virus is a

Computer viruses are minute program which is “embedded inside an application or within a data file which can copy itself into another program“(Adams et al, 2008 ) for the sole determination of meddling with normal computer operations. The consequences may range from corruption and deletion of data; propagation of virus on to network and deployment through attachments through emails in order to further creating havoc to all associated computing devices.

Computers are susceptible to many different attack forms when not properly monitored and protected. Hackers use many different methods to infect your system. Trojans, a type of virus, is one of the most common ways that hackers use to gain access to your system. Trojan viruses are named after the Trojan horse in the Latin epic poem The Aeneid. In this story the Greeks built a giant wooden horse as an apology to the people of troy. Little did the people of Troy know, a large number of soldiers were hiding inside. When the people of troy took the horse inside their castle, the soldiers obliterated the city. This same method is used with viruses. A user downloads a program or piece of software that they need, but harmful code is hidden inside the program. Let’s say I downloaded a game from the internet that had a Trojan horse inside of it. The game may actually run and function fully, however, it could be secretly logging my keystrokes or back-dooring my computer. The term backdoor is a process of bypassing authentication into a system, creating a remote connection, and allowing remote access or control from the hacker, all while remaining undetected. When a hacker has your computer back-doored it is possible for them to do anything they want as if they were right there in front of your computer. Hackers, when they successfully have gained access to your computer, often install keyloggers. A keylogger is the process of logging or recording what

To understand the business of malware, one must understand how malware has evolved in the past twenty-five years. Malware, which includes all kinds of malicious software, was originally created to show the weaknesses of computers. The first type of malware, created in 1986, was a virus called “Brain.A. Brain.A was developed in Pakistan, by two brothers - Basit and Amjad. They wanted to prove that PC is not secure platform, so they created virus that was replicating using floppy disks” (Milošević). Even today malware is still used to check the security of machines.

There are special viruses that creates different types of malicious problems on a network or computer, for instance it will create or open programs to perform tasks. Viruses is also used for denial of service attacks, password cracking and many more. This can be fought against by having a reliable protection service; it is safer if this is taken from the provider itself.

Many types of computer virus has been spreading in computers since 1960. The first a computer virus discovered in 1970 and called The Creeper virus on Arpanet browser (anon, 2013)