Invader.g
Description Invader.g
This is a dangerous memory resident virus. It infects COM and EXE files (except COMMAND.COM) in the same way as the "Jerusalem" virus does, and affects boot sectors of hard and floppy disks. On a floppy disk it formats an additional track, on the hard disk it writes itself just after the MBR. Depending on its internal counters the virus can execute a dummy cycle after each timer interrupt (INT 8), erase information on disks, tune a melody, decipher and display the following message:
by ABT Group at Feng Chia Univ., Taiwan. Mar/27/90
The virus also contains the text "ACAD.EXECOMMAND.COM.COM.EXE" and hooks INT 8, 9, 13h, 21h.
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Oggo.3837
Description Oggo.3837
It is a very dangerous memory resident encrypted parasitic virus. It hooks INT 8, 21h and writes itself to the beginning of .COM and to the end of EXE files that are executed. In some cases the virus deletes all files in current directory. Depending on its internal counters it manifests itself by a video effect and displays the messages:
ALPAK Group
CpSci,Adamson University
O G G O
OGWO.446
Description OGWO.446
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 contains the text strings:
OGWO
*.com command
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