PazSt_Ft2k ( Tip, Trick PC )

Mengatahui with some type, and hopefully be more careful. Here are some file types that often / can be infected and the virus can pass it on again when the file is executed:


Binary executable Files

Binary executable Files (Portable executable / PE) is a file that is translated as its contents by a computer program. This file consists of several types of windows:

* EXE (executable / Application) file type is a file which is often infected with the virus and most of the virus also form exe. Many viruses that can stick in this file and once executed, the virus spread and menginfeksi original computer. Therefore, when we should have a master's program, in the zip or rename it to reduce the risk of virus infection. Some viruses such as menginfeksi EXE w32/Virut, Troxa, Sality and other.
* DLL (Dynamic Link Library) and OCX format that is actually the same as the type of EXE, it just does not run directly, but used by other files such as EXE. So that the virus can also menginfeksi this file type.
* SCR (screensaver) file format is also such as exe, just ber scr extension, which means the file is a screensaver. So when running, screensaver will appear. Therefore, the virus often duplicate itself with this type and place himself as a screensaver, so that when the screensaver is active, the virus is actually active.
* COM file (Command File), can be Text or Binary Files that run under DOS / MS-DOS. Early generation of viruses seem to be this COM file.
* SYS (Device Driver), is a file that is used for Binary Driver

Document Files

Document files that are frequently infected with the virus file is Microsoft Office terutana DOC (Word), XLS (Excel) and mdb (Access Database). Virus Macro viruses usually form, if the active document and can be run menginfeksi template file (DOT file) so that all files will be opened next virus.

Around september 2007, PDF files used by the start of the code to include the virus-specific code in the document. Usually the form of trojan. Avira as well as be on 6 May 2008, PDF weaknesses code used to insert a virus, so that when the PDF is executed in the form of the virus trojan can install itself to your computer.

Script Files

Script file is a file that contains the script / code and program can be translated by a computer to directly control the software / other applications. Some files are:

* BAT (Batch File), is a script file in MS-DOS and Windows
* Vbs (VBScript), script windows VISUAL BASIC language with a limited
* JS (Javascript), this file can not be immediately active, but is run by a web browser, via an HTML file

Type Other Files

Or some other file type that can also be infected, distribute, or execute code disusupi virus, among others:

* Htm, HTML, CHM (HTML Help) files this program can include Javascript code, so it was not rare virus infected file (trojan)
* Inf is a text file (INI file other types) to install the Device Driver. Viruses often change / modify this file type (file Autorun.inf) to activate the virus and spread through the media such as Flash Disk.
* Folder.htt This file is the file folders that can contain script code. Sometimes the virus to modify its content to run certain code. This can also occur in the Desktop.ini file (desktop configuration)

Referensi
http://en.wikipedia.org/wiki/Computer_virus
http://en.wikipedia.org/wiki/Executable_file
http://en.wikipedia.org/wiki/List_of_file_formats
http://en.wikipedia.org/wiki/Cross-site_scripting
http://www.bindshell.net/papers/xssv/
http://en.wikipedia.org/wiki/COM_file
http://en.wikipedia.org/wiki/Dynamic-link_library
http://www.virusbtn.com/news/2007/10_24.xml
http://www.avira.com/en/security_news/protection_from_pdf_exploits.html
http://en.wikipedia.org/wiki/Script_%28computer_programming%29