textfiles/virus/NCSA/ncsa030.txt
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³ VIRUS REPORT ³
³ Black Hole ³
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Synonyms: the Russian Virus.
Host Machine: PC compatibles.
Derived from: Jerusalem-C
This virus is the Jerusalem-C that has odd text and additional code
that is never referenced. A new interrupt eight routine is added to the
non-referenced area and a number of interrupt 21 calls which appear
meaningless. The additional text includes "ANTIVIRUS". It appears that
this virus is a modified version of the Jerusalem-C/New Jerusalem.
Note that because of the difference in EGA and CGA int 10 usage,
Jerusalem A has been observed with the blackhole effect noted on an EGA
screen.
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º This document was adapted from the book "Computer Viruses", º
º which is copyright and distributed by the National Computer º
º Security Association. It contains information compiled from º
º many sources. To the best of our knowledge, all information º
º presented here is accurate. º
º º
º Please send any updates or corrections to the NCSA, Suite 309, º
º 4401-A Connecticut Ave NW, Washington, DC 20008. Or call our BBS º
º and upload the information: (202) 364-1304. Or call us voice at º
º (202) 364-8252. This version was produced May 22, 1990. º
º º
º The NCSA is a non-profit organization dedicated to improving º
º computer security. Membership in the association is just $45 per º
º year. Copies of the book "Computer Viruses", which provides º
º detailed information on over 145 viruses, can be obtained from º
º the NCSA. Member price: $44; non-member price: $55. º
º º
º The document is copyright (c) 1990 NCSA. º
º º
º This document may be distributed in any format, providing º
º this message is not removed or altered. º
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