What is a virus?


A computer virus is software with the ability to self-replicate and attach itself to other executable programs.

The behavior is comparable to its biological counterpart. Computer viruses can also be contagious (might spread on or even beyond the infected computer), exhibit symptoms (the presence of malicious code and its magnitude) and involve a recovery period with possible long-term effects (difficulty in removal and loss of data).
 

Common Types of Viruses
     
ActiveX viruses infect only browsers that support ActiveX.

     Boot sector viruses infect a particular sector on storage media that is reserved for data needed to boot 
.     up a computer.

     Java viruses exploit vulnerabilities in outdated versions of the Java Runtime Environment.

     Macro viruses can occur in all file types that permit storage of document-related macros.

     Script viruses spread by exploiting script languages, including cross-platform languages.

     File infector viruses infect executable programs.


Proliferation
Viruses can spread by attaching themselves to many types of files as soon as these files are executed, copied or sent.


Payload

Some computer viruses are programmed to include a payload. This payload can either display propaganda or images, or else destroy files, reformat your hard drive or cause other damage.

If the virus is not programmed to do damage, it can still cause problems by blocking hard disk space and RAM, weakening the overall performance of your computer. Virus attacks are becoming more and more the norm and occurring with greater frequency than in the past, often with disastrous consequences.


Growing Proliferation

One cause for the rise in virus attacks is the sharp rise in the number of networked computers, especially related to Internet usage. The larger the number of shared files, the greater the risk of a virus infection.

Besides the rising number of opportunities for viruses to penetrate an organization, another reason for the rise in attacks is new types of viruses. These include macro viruses and portable executable viruses (PE viruses), which can spread very quickly through shared documents and e-mails or e-mail attachments.


Worms

A computer worm is an autonomous program or constellation of programs that distributes fully functional whole or partial copies of itself to other computers.

The unique feature of a computer worm is its ability to exploit every feasible method of spreading to achieve its objective of maximum possible proliferation.


Worms
are specialists in spreading and reproducing. They consistently exploit all known vulnerabilities, including people, to penetrate barriers that seem to be impenetrable to normal viruses. A worm does not have a payload of its own but is often used as a transport mechanism for viruses that ride piggyback and immediately start their work.


Proliferation

Worms spread through various methods, including:

        E-mail with attachment - The trick here is for a worm to search through the e-mail address book of an infected computer and automatically send e-mails to all available addresses under the owner's name - with itself as an attachment.

        A network connection - as is present during internet usage, for example - is used by some worms to infiltrate connected computers without any further action required by exploiting vulnerabilities.

        Worms can also be spread by all other methods common to malware. The danger, as already mentioned, is that worms exploit all opportunities simultaneously.  

Virus removal policy
Our policy is that your data is our first priority.  We understand that sometimes your data or documents are irreplaceable.  This being the case we take every precaution to insure data remains safe. All virus scans are set to first clean infected files of virus infection if possible. The unfortunate truth is that sometimes files can not be cleaned and must be deleted to remove infections from a system. Files that are unable to be cleaned of infection will be deleted. If infection is detected and files are required to be deleted to remove infection from a PC or server, it is sometimes required that applications or operating systems must be re-installed to function correctly after a virus removal process. Evolve technology & service solutions, LLC is not responsible to re-install applications or operating systems corrupted as a result of virus removal. At the customer request installation can be provided for additional fees as indicated under standard service pricing. Evolve technology & service solutions, LLC will be held harmless for any negative outcome, data loss or system instability resulting from the removal of virus infected files.

 

 
 

 

 
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