Symptoms of Malware Infection

Symptoms of Malware Infection                               

The following are some primary indicators that a computer may be infected.

  • The computer runs slower than usual.
  • Slow network connection
  • The computer stops responding, or it locks up frequently.
  • The computer crashes, and then it restarts every few minutes.
  • Disks or disk drives are inaccessible.
  • You cannot print items correctly.
  • Annoying message or unusual error message display
  • You see distorted menus and dialog boxes.
  • There is a double extension on an attachment that you recently opened, such as a .jpg, .vbs, .gif, or .exe extension.
  • An antivirus program is disabled for no reason. Additionally, the antivirus program cannot be restarted.
  • An antivirus program cannot be installed on the computer, or the antivirus program will not run.
  • New icons appear on the desktop that you did not put there, or the icons are not associated with any recently installed programs.
  • Strange sounds or music plays from the speakers unexpectedly.
  • A program disappears from the computer even though you did not intentionally remove the program.
  • Applications on the computer do not work correctly.
  • You receive out-of-memory error messages even though the computer has sufficient RAM.
  • New programs are installed incorrectly.
  • Programs that used to run stop responding frequently. Even if you remove and reinstall the programs, the issue continues to occur.
  • A disk utility such as Scandisk reports multiple serious disk errors.
  • A partition disappears.
  • ‘Autorun.inf' appears in removable media.
  • Change made on registry and startup
  • Changes on system configuration to hide themselves  

              Disable task manager

              Disable run utility

              Disable folder options (in explorer)

  • These are common signs of infection. However, these signs may also be caused by hardware or software problems that have nothing to do with a malware. Use up-to-date and efficient antivirus software to be certain whether a computer is infected with a malware or not. 

If you are sure that you are infected by a malware follow these don'ts until the malware is removed.

  • Don't e-mail attachments to anyone to stop the spread of the malware to someone else.
  • Don't plug in a USB drive or copy files. Some viruses can automatically copy themselves to a USB drive. The next time the infected drive is plugged into a computer, the virus will auto run, allowing it to spread to the new machine.
  • Don't log into any personal accounts such as e-mail and other accounts that contain personal and potentially sensitive data. If your PC is infected, your passwords and other login information are vulnerable to theft by the malware.
  • Don't enter credit card or banking information online.