Later.987
Description Later.987
This is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the beginning of COM and to the end of EXE files that are executed or opened. While installing into the memory, before return to the host program this virus disinfects the host file. If an installed DOS have version is lesser that 3.0, the virus displays on Sundays:
TRANSPLANT & NETWARE
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Otti Family
Description Otti Family
These are very dangerous nonmemory resident encrypted parasitic viruses. They search for .COM files and write themselves to the end of the file. Depending on the system date they erase the hard drive sectors. The viruses contain the text string:
OTTI FOREVER
Otto Family
Description Otto Family
These are harmless nonmemory resident encrypted parasitic viruses. They search for the .COM files and write themselves to the end of the file. While infecting these viruses encrypt the file body as well as themselves. This viruses contain the text strings:
"Otto.415": OTTO VIRUS written by:OTTO SCHTUCK COPYRIGHT MICROSHAFT
INDUSTRIES 1992 (tm.)
"Otto.640": OTTO6 VIRUS, <<_S>>, YAM, COPYRIGHT MICROSHAFT INDUSTRIES 1992
(tm.)
"Otto.640" leaves a memory resident program that hooks INT 9 (keyboard) and when Alt-Ctrl-Del keys are pressed, it displays:
<<_S>>, YAM, MICROSHAFT INDUSTRIES (tm.) 1992!
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