The Computer Virus Guide
A computer virus is capable of replicating itself in a computer, without the
approval of the owner. A virus spreads from one machine to an other via the
internet or removable storage devices such as USB drive, floppy disk, CD, or
DVD. Once the computer gets infected by a virus, it automatically loses its
ability to perform at its peak. The computer may also stop functioning
completely, leading to the loss of data and a lot of panic for the user. The
term “virus” may sometimes include other type of detrimental software programs
such as malware, spyware, and adware, but these programs don’t replicate
themselves as true viruses do.
What is a Computer Virus
General Information about Computer Viruses
Colds and Flus of Computer Security
Computer Virus and Worms
The list of viruses keeps growing by the day, and new types of viruses are
detected each year. There are some common types of viruses that infect computers
around the world every single day of the year. Some of these include the Trojan
horse, worm, boot-sector virus, macro virus, and rootkit virus. A Trojan horse
appears as a productive program at first, but when it is executed, it destroys
data or compromises data recovery and the computer’s security. A worm, on the
other hand, replicates itself in a computer and spreads through emails and
removable storage devices. If a computer fails to boot up, it is possible that a
boot-sector virus is present, as this type of virus is known to target the
boot-sector of the hard drive. Macro virus generally infects word processors and
spreadsheets such as MS Word or MS Excel, and rootkit virus cloaks itself as an
operating system file, thus preventing
data recovery or conventional anti-virus software from detecting it.
Types of Computer Viruses
is a Macro Virus?
Between Computer Virus and Worm
Coordinating Virus and Spyware Defense
Recovering from a Trojan Horse
Guidelines on Anti-Virus Process
Certain measures can be taken to prevent computer virus infection. Some of these
include installing a reliable anti-virus program and running it every week,
keeping the operating system updated with the latest security patches, not
opening email attachments that belong to unknown senders, and running an
antivirus scan on the removable storage devices whenever they are connected to
the computer. Also, computer virus can be countered by using
and backing up data in a timely manner.
A Brief History of
How to Remove Virus
Virus Removal Tips
Taxonomy of Computer Worms
One of the greatest harms that viruses do to computers is the deletion of
valuable data. The virus sometimes may damage the hard drive to such an extent
that even with the best raid recovery techniques cannot retrieve the data.
Therefore, backing up one’s data on a regular basis is important. Crucial data
can be backed up to another hard drive; it can be burned to DVDs or it can even
be transferred to online backup and storage sites. This will ensure that data
can be easily recovered, no matter what the catastrophe. Additionally, using
data recovery processes such as disk imaging,
hard drive recovery, hardware
repair, raid recovery,
recovery, or the ‘chkdsk’ utility in Microsoft can also help to retrieve
lost data. There are also a number of effective
recovery software programs that can retrieve vital data.
Preventing and Dealing with Computer Viruses
Virus hoaxes are chain emails that warn users of a dangerous computer virus,
which actually doesn’t exist. The sender usually sends these virus hoax emails
to play pranks on other computer users. If one receives an email of this sort,
he or she should immediately check whether the claimed virus is a hoax or not.
Some virus hoax emails try to unsettle the users by making sensational claims,
while others coax users to delete vital operating system files.
Greatest Virus Myths
A List of Virus