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  Home / Viruses / Virus Encyclopedia / Malware Descriptions / Classic Viruses / File and Boot Viruses

Executable File and Boot Viruses

1.   BWME.GSD.1145
It is a harmless memory resident virus. It hooks INT 21h and infects EXE files that are executed or opened. It was created with Biological Warfare Mutation Engine - it is a polymorphic engine, like the MtE and TPE engines. This virus writes itself to the end of the files. It contains the text...
2.   BWME.Gangi.1130
It is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are executed. The virus has a bug and can halt the system. It was created with Biological Warfare Mutation Engine - it is a polymorphic engine, like the MtE and TPE engines. This virus...
3.   BWME.Test.1287
It is a harmless memory resident virus. It hooks INT 21h and infects COM and EXE files that are executed or opened. It was created with Biological Warfare Mutation Engine - it is a polymorphic engine, like the MtE and TPE engines. This virus writes itself to the end of the files. It contains the...
4.   BWME.Twelve.1378
It is a harmless nonmemory resident parasitic virus. It searches for COM and EXE files and infects them. It was created with Biological Warfare Mutation Engine - it is a polymorphic engine, like the MtE and TPE engines. This virus writes itself to the end of the files. It contains the text strings:...
5.   Devices.2000
It is a harmless memory resident parasitic polymorphic virus. It writes itself to beginning of SYS and to the end of EXE files. While executing an infected EXE file the virus opens the C:\CONFIG.SYS file, scans it for the names of device drivers, infects them and returns to the host program. While...
6.   EICAR-Test-File
EICAR is a short 68-byte COM file that is detected by anti-virus programs as a virus, but is actually NOT "VIRAL" at all. When executed it just displays a message and returns control to the host program. Why is this harmless file detected as a virus? The file was created in order to demonstrate to...
7.   Happy_II.506
It is a harmless nonmemory resident parasitic virus. It searches for COM files (except COMMAND.COM), then writes itself to the end of the file. The virus does not manifests itself in any way, it contains the text strings: *.com COMMAND. HAPPY v1.03 (C) PROFESSOR,KPI
8.   Joke.1068
This is not a dangerous nonmemory resident parasitic virus. It searches for .COM files (except COMMAND.COM) of current directory and writes itself to the end of the file. Sometimes it display: At last ...... ALIVE !!!!! I guess your computer is infected by the Big Joke Virus. Release 4/4-91 Lucky...
9.   Kot.b
This is a dangerous memory resident boot virus. It hooks INT 13h, and writes itself to the BOOT sectors of floppy disks and to the MBR sector of the hard drive. On the 15th day of each month, the virus stops booting in a computer. The virus contains the text string: Kot
10.   Lemena.3544
It is not a dangerous memory resident parasitic polymorphic virus. It copies itself to the video memory at address BC00:0000, hooks INT 22h (Terminate call), returns control to host program, waits for termination and hooks INT 21h. To hook INT 21h the virus patches the DOS kernel. The virus then...
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