Shift.200
Details
Shift.2004
It is a dangerous memory resident parasitic virus. It hooks INT 16h, 21h and intercepts the DOS calls Open and FindFirst ASCII. On these calls the virus searches for the COM and EXE files except COMMAND.COM, then writes itself to the end of the file.
The virus has bugs and may corrupt the files while infecting them. Depending on its counters the virus disables Shift keys or displays the message:
Your computer is infected by SHIFT VIRUS
This virus is dedicated to PCC,
and was written by an PCC student.
ALEX
The virus also contains the string:
COMMANDCOMEXE
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