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2. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com - ! .. / ) ( )VIRUS) )Vital Information Resources Under Seize) - executable , )( University of Delaware (c) Brain Ralf Burger , )( Virdem ChaosComputer Club Theme Virdem com - Ralf Ralf , Charlie, Vienna , Suriv-01 .com Suriv-02 .exe 3. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com .exe Suriv-03 .com .exe Jerosalem Fred Chohen Dr. Chohen % , Chohen, Lehigh University Lehigh Lehigh , Command.com Host Host Damage Lehigh , FAT Command.com Lehigh , Newzealand University of Wellington Soft-restraint Memory-restraint Replication Italian, Ping-Pong / Bounching Ball Yale Cascade IBM Virus-B Jerosalem Toolkit Jerisalem Fu Manchu Data crime , Royal National Institute of Blind, Jerosalem Aids InformationDisk Autoexec.bat Po Box7, Panama $ 4. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com Vienna Polymerphic Dark Avenger .`Fast Infector . Subtle Damage. Dark Avenger , Virus Exchange BBS (VX BBS) Whale European Institute for Computer Anti-virus Research (EICAR) EICAR Symantec Norton Antivirus Central Point CPAV Glut ( ( - Tequila ( ( Polymorphic Dark Avenger Self Mutating Engine (MtE) Dedicated MtE MtE , Starship , , Association of Really Cruel Viruses (ARCV) ARCV 5. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com Trident Trident Trident Polymorphic Engine (TPE) GRARFE Cruncher Compression - DarkAvenger DAME (Dark Angels Multiple Encryptor) Trigger Trident TPE . 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Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com CIH MRecover1.7 FAT .com Growth 1001bytes. Encrypted The bad boy halt jour systemandThe Bad Boy virus. Copyright 1991. .com : INF.BAT @each offremINFdel.INF.COM .com command.com .com Growth 1068 bytes 0 4 10. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comAt lastALIVE!!!!!I guess your PC is infected by The Big Joke VirusRelease 4/4-91Lucky you, this is the kind versionBe more careful while duplicating in the futureThe Big Joke Virus, Killer Version, will strike harderThe Big Joke rules forever, Hi, Im Crazy Daizy! Im format your harddisk! Say goodbye to Your files!Formating. - ERROR: No SYSTEM found! No files on drive C: Insert SYSTM disk in drive A: and push any key! .exe Patches Patched Pretty day today isnt it?Dont worry sing a song!Life isnt easy!Dont hate your PC! Lets be friend! 11. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , , ,,, )INTERNET USAGE STATISTIC), , , ,, , ! 12. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , , , , , , , , ,, 13. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , )backdoor) )Scripts) , ! , , , MP3 14. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com)worm) , , , , , , , )keylogging) , , , , , , 15. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , , , )malware) )malicious) , ,,,, , , 16. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com ,,, ,, ,,, , , , ( ) , 17. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com A ( ) , : : ( ) * , * * * - A&B B A A&B A&B ., - .A&B . . 18. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , exe exe ,, exe exe . Administrative User :(ctrl+alt+Delete) cmd,msconfig,gpedit.msc,regedit Run Administrative User ( ) . Show hidden files and folders . exe . , . (, ) . Safly remove Safly remove .EXPLORER.EXE Process ( ) () System Volume Information exe 19. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com ? % ? A&B % :: , , ? , ( ) (My Computer>Properties>System Restore Turn off System Restore on all drives Yes,Ok) System Volume Information_restore{9E42ABDF-336B-4093-AF0F-2F23508C78D5} ( ) , , 20. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com ( ) A&B - - , , "Task Manager has been disabled by your administrator." ) ( 21. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , autorun.inf Event ) open explore (autorun.inf Execute : Autoplay open explore autorun.inf Execute autorun.inf , Execute autorun.inf ( ( autorun.inf , Autoplay , Autoplay Autoplay Windows Explorer , Windows Explorer Explorer Explorer Win Rar Autoplay Autoplay Win Rar Address Bar Drive Letter( D: I:) .*)exe) Attibute Hidden System File Show Tools Folder Options View Show Hidden Files and Folders Hide Extensions for known File Types Hide Protected Operating System Files 22. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com Apply Ok Hidden .*)exe) )Open Explore ( Address Bar Drive Letter ( D: I:) Boot Run msconfig Startup Access is Denied Process Running Ctrl+Alt+Delete Task Manager Hidden TaskManager Show HijackThis Spyware RemoverSpyware:Which is a such kind of malware> ) ( Virus, , , common ,) , , ) 23. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com, ? , , ),, , ,) , ) , ( ) , , ? ) , , ) start run , gpedit.msc ok 24. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com) computer configuration ) administrative tamplates->system turn offautoplay 25. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com) turn off autoplay enable turn off autoplayon - All drives , ok 26. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com) ? , , ( hidden ) , (, .exe , ) .exe (hasjfdh.exe) ) , /change , / change (,universal vista inspirat Brico Pack Ultimate 2 1.0 ) / , , ) ? ( ) , apply 27. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , , ? , , , "none of those" , ! () - , , winrar ,,, , ! ; - ; ! ? spyware, adware, passward cracker, malware - , (!) - McAfee VirusScan Enterprise 8.0.0 , , " " " " C: McAfee VirusScan Enterprise , , (rots , !) nero , "" , 28. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com , , () , , McAfee-McAfee ?-McAfee , McAfee C: C: .exe, .dll creation, modification, access C: ? () C: " " " " , , , ", , ? ?" " ? ?" - C: , , , ? , ? , , , , , ( ), , ? , "" ? , , , - 29. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.com ( )-Creeper virus, ARPANET Bob Thomas ARPANET TENEX operating system BRAIN Basit Amjad, ()Elk Cloner Apple II , Creeper virus Basit Amjad ( ) Creeper virus Elk Cloner (), Google CRACK Types of virusesBoot viruses: These viruses infect floppy disk boot records or master boot records in hard disks. Theyreplace the boot record program (which is responsible for loading the operating system in memory)copying it elsewhere on the disk or overwriting it. Boot viruses load into memory if the computer triesto read the disk while it is booting.Examples: Form, Disk Killer, Michelangelo, and Stone virusProgram viruses: These infect executable program files, such as those with extensions like .BIN, .COM,.EXE, .OVL, .DRV (driver) and .SYS (device driver). These programs are loaded in memory duringexecution, taking the virus with them. The virus becomes active in memory, making copies of itself andinfecting files on disk.Examples: Sunday, CascadeMultipartite viruses: A hybrid of Boot and Program viruses. They infect program files and when theinfected program is executed, these viruses infect the boot record. When you boot the computer nexttime the virus from the boot record loads in memory and then starts infecting other program files on 30. Want more Updates http://facebook.com/tanbir.ebooksfacebook /gmail/skype: - http://tanbircox.blogspot.comdisk.Examples: Invader, Flip, and TequilaStealth viruses: These viruses use certain techniques to avoid detection. They may either redirect thedisk head to read another sector instead of the one in which they reside or they may alter the readingof the infected files size shown in the directory listing. For instance, the Whale virus adds 9216 bytes toan infected file; then the virus subtracts the same number of bytes (9216) from the size given in thedirectory.Examples: Frodo, Joshi, WhalePolymorphic viruses: A virus that can encrypt its code in different ways so that it appears differently ineach infection. These viruses are more difficult to detect.Examples: Involuntary, Stimulate, Cascade, Phoenix, Evil, Proud, Virus 101Macro Viruses: A macro virus is a new type of computer virus that infects the macros within adocument or template. When you open a word processing or spreadsheet document, the macro virus isactivated and it infects the Normal template (Normal.dot)-a general purpose file that stores defaultdocument formatting settings. Every document you open refers to the Normal template, and hence getsinfected with the macro virus. Since this virus attaches itself to documents, the infection can spread ifsuch documents are opened on other computers.Examples: DMV, Nuclear, Word Concept.Active X: ActiveX and Java controls will soon be the scourge of computing. Most people do not knowhow to control there web browser to enable or disable the various functions like playing sound or videoand so, by default, leave a nice big hole in the security by allowing applets free run into there machine.There has been a lot of commotion behind this and with the amount of power that JAVA imparts,things from the security angle seem a bit gloom.These are just few broad categories. There are many more specialized types. But let us not go into that.We are here to learn to protect our self, not write a thesis on computer virus specification. 31. 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