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The first known MS-DOS-file-infector to use stealth 5lo: DOS 1992-10 Infects .EXE files only Abraxas: Abraxas5 DOS, Windows 95, 98 [1] 1993-04 Europe: ARCV group Infects COM file. Disk directory listing will be set to the system date and time when infection occurred. Acid: Acid.670, Acid.670a, Avatar.Acid.670, Keeper.Acid.670 DOS, Windows 95 ...
For example, an executable may be created and named "picture.png.exe", in which the user sees only "picture.png" and therefore assumes that this file is a digital image and most likely is safe, yet when opened, it runs the executable on the client machine. [76] Viruses may be installed on removable media, such as flash drives. The drives may be ...
An example of this is a portable execution infection, a technique, usually used to spread malware, that inserts extra data or executable code into PE files. [34] A computer virus is software that embeds itself in some other executable software (including the operating system itself) on the target system without the user's knowledge and consent ...
A specific example of this technique is a crack that removes the expiration period from a time-limited trial of an application. These cracks are usually programs that alter the program executable and sometimes the .dll or .so linked to the application and the process of altering the original binary files is called patching. [12]
In computing, a Trojan horse (or simply Trojan) is a malware that misleads users of its true intent by disguising itself as a normal program. The term is derived from the ancient Greek story of the deceptive Trojan Horse that led to the fall of the city of Troy.
Sality is a family of polymorphic file infectors, which target Windows executable files with the extensions .EXE or .SCR. [1] Sality utilizes polymorphic and entry-point obscuring (EPO) techniques to infect files using the following methods: not changing the entry point address of the host, and replacing the original host code at the entry point of the executable with a variable stub to ...
For Microsoft Windows, OS/2, and DOS, .exe is the filename extension that denotes a file as being executable – a computer program – containing an entry point. [ 1 ] In addition to being executable (adjective) such a file is often called an executable (noun) which is sometimes abbreviated as EXE.
The hoax claimed that SULFNBK.EXE was a virus, and contained instructions to locate and delete the file. While the instructions worked, they were needless and (in some rare cases, for example, when the long file names are damaged and need to be restored) can cause disruptions, as SULFNBK.EXE is not a virus, but instead an operating system ...