Threat Encyclopedia

Selected viruses, spyware, and other threats: sorted alphabetically

Boot_Exe

This interesting virus comes most probably from Russia. It infects not only boot sectors of diskettes and boot sector of hard disk but also headers of EXE files. When an infected file is executed the virus will infect boot sector of hard disk and becomes resident. It will check the operation of reading from disk and if is finds that the sector contains beginning of EXE file, it will infect it. The virus utilises free space in the EXE file header and length of the infected file does not increase. The virus infects boot sector of diskettes in classical way.

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