Computer virus

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Computer virus

  1. 1. COMPUTER VIRUS JANGIDML@REDIFF.COM1 COMPUTER VIRUS / JANGIDML
  2. 2. VIRUS  VIRUS IS A SOFTWARE, CONTAINS SET OF PROGRAMMES WHICH LEAD FORCED TO WORK WITHOUT ANY COMMANDS & INTERUPTION. THE COMPUTER VIRUS ARE EXECUTABLE PROGRAMMES.2 COMPUTER VIRUS / JANGIDML
  3. 3. EFFECTS : MAY BE ONE OR MORE  DATA : CORRUPT  SOFTWARES : CORRUPT  OPERATING SYSTEM : CORRUPT  HARD DISK : CREATE BAD SECTORE OR CORRUPT  SLOW DOWN : PROGRAMMES  PRINT : UN-USAL CHARACTERS  HANG : PC OPERATIONS3 COMPUTER VIRUS / JANGIDML
  4. 4. TYPES OF VIRUS  PROGRAM VIRUS : .COM,.EXE,.DLL etc.  BOOT VIRUS : INTERUPT BOOTING PROCESS  MACRO VIRUS : EXECUTE SEQUENCE OF KEY STROCKS  STEALTH VIRUS : HIDE FROM ANTI-VIRUS  POLY MORPHIC VIRUS : INFECT PROGRAMMES  MULTIPARTITE VIRUS : BOOT & PROGRAMMES  COMPANION VIRUS : INFECT PROGRAMMES WITH .COM  MALICIOUS PROGRAMS : INFECT PROGRAMS OF4 DOWNLOAD / JANGIDML COMPUTER VIRUS
  5. 5. TIPS TO MINIMIZE VIRUS RISKS  AUTOMATIC PROTECTION BY ANTI-VIRUS  SCAN : HARD DICK  SCAN : FD,CD,USB DRIVE  E-MAIL : SCAN & READ  UPDATE : ANTI-VIRUS  DOWNLOAD : CARE & SCAN  AVOID COPIED SOFTWARES  AVOID TO USE BORROWED CD,USB DRIVE ETC  USE BACKUP & RESCUE DISK5 COMPUTER VIRUS / JANGIDML
  6. 6. POPULAR & DESTRUCTIVE VIRUS  Creeper,1971  Stuxnet ,2009  Elk Cloner ,1982  Conficker Virus,2009  The Morris  agent.btz ,2008 Worm,1988  Zeus ,2007  ILOVEYOU,2004  PoisonIvy ,2005  Code Red,2001  MyDoom ,2004  Nimda,2001  Fizzer ,2003  Slammer,2003  Backdoor.Bot  Blaster  Funlove  Welchia  Stration@mm  Commwarrior-A,20056 COMPUTER VIRUS / JANGIDML

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