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Code Red Worm (2001) would spread itself with the message: “Hacked By Chinese!”

                MyDoom Worm (2004) scraped addresses from infected machines, then sent copies of itself to
               those addresses.
                Storm  Worm  (2007)  attacked  millions  of  computers  with  an  email  about  approaching  bad
               weather.

                Zeus, also known as Zbot Trojan horse (2007) was made with an intention to steal banking
               information of United States Department of Transportation.
                Emotet (2014) is considered  one  of the  most  destructive  and  dangerous  Trojans.  It spreads
               through spam emails to steal banking information.
                Pegasus (2016) is commercial spyware. It secretly infects a smartphone (Android or iOS) and
               tracks the device completely for every action.

            Harms Caused by Computer Malware

            Different malwares will affect your computer in different ways.

               They can crash your hard disk.
               They can destroy all or some of your data.

               They can decrease the processing speed of the computer.

               They can reduce or block the memory of the computer or hard disk.
               They can stop you from restarting your computer or keep on restarting your computer.

               They can send e-mails from your account without your knowledge.

            How does a Computer get infected?

            Computer malwares spread through several ways. Some of them are:
               using infected Extenal Hard Disk/Pen drives

               opening an infected e-mail attachment
               downloading an infected program from Internet or External Hard Disk/Pen drives

               running an infected program (which can be a game, screen saver, etc.)
               through local computer networks















                         Pen drive                     e-mail                      Computer game






                                                                            Safeguarding your Computer    15
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