Protecting Computer Systems With Antivirus Software Beskyttelse af edb-systemer med antivirussoftware

Computers all over the world are susceptible to increased virus threats these days. Computere over hele verden er der en tendens til øget virus trusler disse dage. Preventing viruses from attacking computers has nearly become an obsession for anti virus software developers. Forhindre virus i at angribe computere er næsten blevet en besættelse for anti-virus software udviklere. Even large corporations like Microsoft have been exposed to virus attacks. Selv store virksomheder som Microsoft har været udsat for virusangreb.

Before the advent of internet, the spread of computer viruses was largely limited to manual transmission through floppy disks. Før indførelsen af internettet, spredning af computervirus var stort set begrænset til manuel transmission via disketter. Hence it was much easier to detect and eliminate viruses before they could do any large scale damage to a computer system. Derfor var det meget lettere at opdage og fjerne virus, før de kunne gøre nogen stor skala skade på et edb-system. All that was required was a scan of the floppy disk by antivirus software before copying the files from it to the computer. Det eneste, der var påkrævet var en scanning af disketten af antivirussoftware, før du kopierer filerne fra den til computeren. The spread of the virus to other computers was thus slow. Spredning af virus til andre computere var derfor langsom.

The rising popularity of internet has changed the situation completely. Den stigende popularitet af internettet har ændret situationen fuldstændig. The virus can now spread very fast from one system to another through the internet as the medium. Virussen kan nu spredt sig meget hurtigt fra et system til et andet via internettet som medie. The virus could spread through various means: emails and their attachments, instant messages, peer to peer to sharing of files, software downloads etc. They can spread automatically without any manual intervention and can enter the system in multiple ways, exposing the vulnerability of the system. Virussen kan sprede sig på forskellige måder: e-mails og vedhæftede filer, chatbeskeder, Peer to Peer til deling af filer, software downloads osv. De kan spredes automatisk uden manuel indgriben og kan indgå i systemet på flere måder, hvorved det blev afsløret, hvor sårbar den system. With the convergence of technologies like computers and communication through mobile devices, the threat of computer viruses is raising by the day. Med konvergens af teknologier som computere og kommunikation via mobile enheder, truslen om computervirus er en højnelse af dagen.

Protecting the computer from viruses Beskytte computeren mod virus

The antivirus software technology has kept pace with the various types of virus threats and has become inseparable part of a computer system today. Antivirussoftwaren teknologi har holdt trit med de forskellige former for virus trusler og er blevet uadskillelig del af et edb-system i dag. The antivirus software products can thwart attempts by viruses to enter a computer system through emails, internet browsers, file servers and other desktops in a network. Antivirussoftwaren produkter kan forpurre forsøg med vira for at indtaste et edb-system via e-mails, internet-browsere, filservere og andre stationære computere i et netværk. They also have a centralized system of deploying the software as well configuring it to a particular system and updating of the software. De har også en centraliseret system til etableringen af software og konfiguration af den til et bestemt system og opdatering af software.

The following lists some of the steps a computer user must take for protection against virus threats. Følgende lister nogle af de skridt, en computer bruger skal tage for beskyttelse mod virus trusler.

1. The first step in protecting your computer system against viruses is to evaluate the current antivirus software that is being used to find out if it is adequate and covers all possible forms of threats. Det første skridt i at beskytte din computer mod virus er at evaluere den nuværende antivirus software, der bruges til at finde ud af, om det er passende og dækker alle mulige former for trusler. A computer network with desktops and servers with connection to the internet requires anti virus software with many features like a firewall, antivirus, content filtering and spyware detection. En computer-netværk med stationære computere og servere med forbindelse til internettet kræver anti-virus software med mange funktioner som en firewall, antivirus-, indholds-filtrerings-og spyware afsløring. All the components of the system like desktops, server, gateway etc. need to be protected from external threats. Alle dele af det system, som desktops, server, gateway etc. skal beskyttes mod eksterne trusler.

2. The antivirus software needs to be regularly updated against new virus threats emerging everyday. Antivirus-software skal opdateres jævnligt mod nye virus trusler nye hverdag. The reputation of the company that developed the antivirus software is important in this respect. Omdømmet af den virksomhed, der udviklede den antivirus software er vigtigt i denne henseende. The software should have real time scanning feature that automatically starts scanning the files in the computer as well as any incoming messages, software etc. when the system is booted up. Softwaren burde have tidstro scanning funktion, der automatisk i gang med at scanne filer på computeren samt alle indgående beskeder, software osv., når systemet er startet op.

3. All new programs should be compulsorily scanned irrespective of their place of origin. Alle nye programmer bør være obligatorisk scannet uanset deres oprindelsessted.

4. Attachments to emails or instant messages in any form from unknown sources should not be opened without ascertaining that they are free from virus. Vedhæftede filer til e-mails eller chat-beskeder i enhver form fra ukendte kilder bør ikke åbnes uden at fastslå, at de er fri for virus.

5. Taking regular backups of important files in the system will ensure quick recovery of the system in case of a virus attack. Tage regelmæssige sikkerhedskopier af vigtige filer på systemet vil sikre en hurtig genopretning af systemet i tilfælde af en virus angreb.