A GREAT LERN "THE VIRUS ,AND ATTACK" WITH MAKV, A LONG READ ABOUT VIRUS ,HERE BY MAKV,KVASHIQUE READ IT
A GREAT LERN "THE VIRUS ,AND ATTACK" WITH MAKV
-: Computer Viruses :-
What is a Computer Virus ?
A potentially damagingcomputer programme capable of reproducingitself causing great harm to files or other programs without permission or knowledge of the user.
Types of viruses :-
The different types of viruses are as follows-
1) Boot Sector Virus :- Boot sector viruses infect either the masterboot record of the harddisk or the floppy drive.The boot record program responsible for the booting of operating system is replaced by the virus. The virus either copies the master boot program to another part of the hard disk or overwrites it. They infect a computer when it boots up or when it accesses the infected floppy disk in the floppy drive. i.e. Once a system is infected with a boot-sector virus, any non-write-protected disk accessed by this system will become infected.
Examples of boot- sector viruses are Michelangelo and Stoned.
2) File or Program Viruses :- Some files/programs, when executed, load the virus in the memory and perform predefined functions toinfect the system. They infect program files with extensions like.EXE, .COM, .BIN, .DRV and .SYS .
Some common file viruses are Sunday, Cascade.
3) Multipartite Viruses:- A multipartite virus is a computer virus that infects multiple different target platforms, and remains recursively infective in each target. It attemptsto attack both the boot sector and the executable, or programs, files at the same time. When the virus attaches to the boot sector, it will in turn affect the system’sfiles, and when the virus attaches to the files, it will in turn infect the boot sector.
This type of virus can re-infect a system over and over again if all parts of the virus are not eradicated.
Ghostball was the first multipartite virus, discovered by Fridrik Skulason in October 1989.
Other examples are Invader, Flip, etc.
4) Stealth Viruses :- These viruses are stealthy in nature means it uses various methods for hiding themselves to avoid detection. They sometimes remove themselves from the memory temporarily to avoid detection by antivirus. They are somewhat difficult to detect. When an antivirus program tries to detect the virus, the stealth virus feeds the antivirus program a clean image of the file or boot sector.
5) Polymorphic Viruses:- Polymorphic viruses have the ability to mutate implying that they change the viral code known as the signature each time they spread or infect. Thus an antivirus program which is scanning for specific virus codes unable to detect it's presense.
6) Macro Viruses :- A macro virus is a computer virus that"infects" a Microsoft Word or similar application and causes a sequence of actions to be performed automatically when the application is started or something else triggers it. Macro viruses tend to be surprising but relatively harmless.A macro virus is often spread as an e-mail virus. Well-known examples are Concept Virus and Melissa Worm.
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: Viruses Codings :-
The ILOVEYOU Worm (VBS/Loveletter)Server Error in Application"INSECURE.IN"Internet Information Services 7.0Error SummaryHTTP Error 404.0 - Not FoundThe resource you are looking for has been removed, had its name changed, or is temporarily unavailable.Detailed Error InformationModuleIIS Web CoreNotificationMapRequestHandlerHandlerStaticFileError Code0x80070002Requested URLhttp://www.insecure.in:80/love_letter_worm.txtPhysical PathC:\inetpub\vhosts\insecure.in\httpdocs\love_letter_worm.txtLogon MethodAnonymousLogon UserAnonymousMost likely causes:*.The directory or file specified does not exist on the Web server.*.The URL contains a typographical error.*.A custom filter or module, such as URLScan, restricts access to the file.Things you can try:*.Create the content on the Web server.*.Review the browser URL.*.Create a tracing rule to track failed requests for this HTTP status code andsee which module is calling SetStatus. For more information about creating a tracing rule for failedrequests, clickhere.Links and More InformationThis error means that the file or directory does not exist on the server. Create the file or directory and try therequest again.View more information »
Mawanella E-Mail WormServer Error in Application"INSECURE.IN"Internet Information Services 7.0Error SummaryHTTP Error 404.0 - Not FoundThe resource you are looking for has been removed, had its name changed, or is temporarily unavailable.Detailed Error InformationModuleIIS Web CoreNotificationMapRequestHandlerHandlerStaticFileError Code0x80070002Requested URLhttp://www.insecure.in:80/mawanella_email_worm.txtPhysical PathC:\inetpub\vhosts\insecure.in\httpdocs\mawanella_email_worm.txtLogon MethodAnonymousLogon UserAnonymousMost likely causes:*.The directory or file specified does not exist on the Web server.*.The URL contains a typographical error.*.A custom filter or module, such as URLScan, restricts access to the file.Things you can try:*.Create the content on the Web server.*.Review the browser URL
