Virus Elimination Course
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The document provides an overview of computer viruses, detailing their types, symptoms, and methods of infection. It also explains how to remove viruses using Windows tools such as Task Manager, msconfig, and the registry editor. Additionally, the document includes contact information for further questions and resources for virus removal.
Virus Elimination Course
- 1. CAMBO TECH YOUTH GROUPViruses EliminationProfessional Lecturer: KEAN TAKTrainer: - LEANG PENGAN- THACH MONIROTHTeam : CHEAT SOVANNARA, BUN CHANTHEARA, CHAP SOVANYUTH, HEL SOMBO.
- 3. What is Computer Viruses?Computer Viruses is a program made by the programmer to do some malfunctions in computer, can delete documents, and make your system run slowly.Type of Computer VirusesViruses: Copy itselfand infect to computer.
- 4. Spyware: Collect information and send to spyware author.
- 5. Malware:Infiltrate in to system without owner’s informed.
- 6. Worms:A self-replicating malware program.
- 8. RAT: Remote Administrator Toolkits.Computer Viruses Infection MethodOverwriting : Merge to existing file ( File will be broken).Appending : Embedded into file (File still able to be run).Disk Infector : Make change to MBR(Windows can’t boot).Computer Viruses SymptomsWorking Program return some errors.
- 9. The Computer is crashing and restarting by itself.
- 10. RAM overgrow
- 11. Your disks and drives are not working properly.
- 12. There are error messages popping out
- 13. The Computer running slower than normal.
- 14. Your files and folders are getting deleted automatically.
- 15. You are unable to install a new antivirus program.Startup Mode in Windows XPSafe Mode: Start with minimal drivers and services.Normal Mode: Start with all drivers and services.Debugging Mode: Start with Windows debugging tools.Type of Folder in WindowsNormal Folder : Folder created by normal users.
- 16. Special Folder: Folder created by System.Useful Programs in Windows OSCommand Prompt(cmd) : Getting into new MS DOS.Old Command Prompt(command) : Getting into old MS DOSRegistry Editor(regedit) : Modify Registry Key and Value.System Configuration(msconfig) : Manage startup program.Task Manager (taskmgr) : Manage Process, Performance, running app.Group Policy Editor(gpedit) : a new way to modify value in Regedit
- 17. How to Remove Viruses Kill all running viruses process. Delete all Viruses associated files. Remove and correct some Registry Key & Value.> How to Kill Virus ProcessUsing build-in Task Manager
- 18. Using Third Party Program : Process XP, Win XP Manager, Win Vista Manager, Win 7 Manager … > How to delete all Viruses associated filesShow all Hidden File and folder in Folder Options
- 19. Search for viruses extension (.exe, .com, .bat, .pif, .scr ) from all drives.Use boot CD to delete Viruses files: eg. ERD commander(optional), Bart PE or any live CD.Search and Delete all registry key or value created by Viruses.
- 20. Introduction to Useful Built-in Windows Tools
- 21. 1- System Configuration (msconfig)To open it:Start > Run > Type: msconfig
- 22. 2- Task Manager (taskmgr)To open it:Start > Run > Type : taskmgr Or right click on Taskbar > Task Manager Or Press CTRL + ALT + Del key.
- 23. 3- Group Policy (gpedit.msc)To open it:Start > Run > type : gpedit.msc
- 24. 4- Command Line (cmd) To open it:Start > Run > type: cmd ( For new version of command line)Start > Run > type : command (For old version of command line).
- 25. Value DataValue NameRoot KeysSub keysContents paneKey Pane
- 26. How to Read Registry KeyNo warning when delete or modify of key or valueData Type of RegistryHive Key in RegistryHow Registry workWorking with permission Registry ValueHow to Import/Export Registry ValueHow to safely modify key or value in registry5- Registry (regedit)
- 27. Batch File and Script FileBatch File (.Bat File) : Using Windows Command line.Script File (VbScript File): Using Microsoft VB language.
- 28. Thanks YouContact me :moniroth@live.comTwitter/monirothFacebook/roth999Skype: roth999HP: 017 877 855Website: http://bestpctips.co.ccBlog: http://moniroth.wordpress.com