General signs of a malware infection



Safety 101: General signs of a malware infection


There is a number of signs or symptoms indicating that your computer is infected. If you have started to notice weird things happening on your PC, such as:

  • unusual messages, images, or sound signals;
  • CD-ROM tray opens and closes voluntary;
  • programs start running without your command;
  • messages are displayed informing that one of your programs is attempting to access Internet without your command.

then it is likely that your computer is infected with malware.

Additional signs of email infections:

  • Your friends or colleagues tell you about having received emails sent from your email box which you did not send;
  • A lot of messages without a sender address and subject in your mailbox.
  • It must be admitted that such signs are not always explained by presence of malware. They may have some other explanation. For example, the issue with weird emails may be the result of somebody sending infected emails with your sender address from some other computer, not necessarily yours.

There are also indirect signs of a malware infection on your computer:

  • your PC frequently crashes or hangs;
  • everything slows down when starting a program;
  • operating system does not boot;
  • missing or corrupt files and folders;
  • excessive hard drive activity (the light on the front of the case flashes frequently);
  • something is wrong with Microsoft Internet Explorer (it freezes or does not respond to commands, e.g.).

In 90% of cases, these indirect signs are caused by incorrect functioning of some hardware or software. Still, such signs have a little chance of being caused by an infection. If you experience any signs of this type, it is recommended to:

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