A computer virus is a piece of malicious software which can hide in your computer.

Why should I be worried?

If you have a computer virus in your computer, it will usually have the intention of launching an attack which may result in:

  • The virus allowing hackers to gain control of your computer or network
  • Your computer resources being used without your knowledge for illegal activities
  • Your sensitive data being stolen (credit card numbers, passwords or personal details)
  • Corruption of your precious data or other damage to your computer

The sooner a virus is removed, the less opportunity it will have to cause damage, so if you suspect that you have a virus on your computer, we recommend that you shut the computer down and contact us asap.

How to spot if my computer is infected?

A computer infected with viruses may display any of the following symptoms:

  • Computer performing unusually slowly or hanging
  • Apps launching themselves without being clicked
  • Files disappearing, being deleted of becoming corrupt
  • Unknown files appearing on the computer
  • Pop up windows displaying on the screen, sometimes with threatening messages
  • Low storage being reported
  • Increased network activity

Types of computer virus

  • Resident Virus – resides in the computer memory and interferes with normal system operations
  • Browser Hijack – hides in temporary internet files or third party browser software causing unwanted pop-ups, homepage hijack or webpage redirects
  • Boot Sector – transmitted through email attachments or infected files. When active, it hides in the boot sector of your system drive causing system damage
  • File Infecting – targets program files causing malicious software to run when users click on them
  • Ransomeware – encrypts all the data on your hard drive and displays a message requesting payment, usually in bitcoin, to receive the key to unlock your data
  • File Overwriting – spreads through files and folders on your hard drive, overwriting and corrupting your data
  • Web Scripting – these viruses hide in web pages disguised as links, adverts, images or other files which can infect your computer when you visit the website
  • Network – these replicate themselves across networks using shared resources as an attack vector to spread