Page 71 - Plus_V2.2_C8_Flipbook
P. 71

Rootkit

                 Rootkit is a malware that gains administrator access to the host system. Once the attacker gains
                 access to the system, the rootkit gets hidden but retains special access to the system. The detection of

                 rootkit is difficult as having special access to the system, it bypasses the tracking software.

                      Backdoor

                 Backdoor is a type of malicious software which enters into the computer through bundled with other

                 software or files. It is used to gain remote access to the host computer.



                                                             Tech Fact

                       Most of the malware programs are distributed over the Internet, often bundled with
                      other software.
                       The best way to guard against malware is to install antivirus software.





                        ANTIVIRUS


                 An antivirus program is a software which can detect the presence of a virus on a computer and
                 remove the virus. Eradicating a virus is the term used for cleaning a computer.
                 There are several methods of eradication:

                   Removing the code in the infected file which corresponds to a virus.
                   Removing the infected file.
                   Quarantining the infected file, which involves moving it to a location where it cannot be run.

                   Inform the user about the presence of the malware and the action that has been taken.
                   Separate all the infected files and applications so that the infection cannot spread further.

                 Some well-known antivirus programs are Norton, AVG, McAfee, Symantec, SmartDog, Kaspersky, etc.



                  Let’s PraCtiCe
                                                                                                     Subject Enrichment
                   What are the threats to our data when we are online?



                        FIREWALL

                 The term ‘firewall’ originally referred to a wall intended to confine a fire or potential fire within a building.

                 In computer, a firewall is a software or hardware-based network security system that controls the
                 incoming and outgoing network traffic based on applied rule set. A firewall acts like a gatekeeper and
                 prevents unauthorised access to a computer network. It inspects every data packet that arrives at a



                                                                                      Computer Safety and Security  69
   66   67   68   69   70   71   72   73   74   75   76