F-Secure Virus Descriptions : Stupid

NAME:	Stupid
ALIAS:	Do-Nothing
ORIGIN:	Israel
SIZE:	583
TYPE:	Resident COM-files
REPAIR:	Yes

This virus is not a well written one. In fact it is so badly written that in many cases it will simply cause the system to "hang", instead of properly infecting it. It is not a serious threat. The virus will only work on machines with at least 640K of memory, because it always tries to hide itself at the same address, starting at 9000:0000. The original infected program distributed by the author contained the string:

                        (c)Stupid 1989 Virushmock!

VARIANT: SADAM

This variant is also from Israel, possibly by the same author. It is 919 byte long. The most obvious effect of the virus is to display:

                    HEY SADAM   LEAVE QUEIT BEFORE I COME

The "Profesor" variant is basically identical, with the text string changed.