旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � VIRUS REPORT � � SYS Virus � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Host Machine: PC compatibles. Derived from: Search-HD. This virus is really a modification of the Search-HD virus. The display code has been replaced (no display occurs on reboot) by code that disables the SYS program. The SYS program itself is not modified, but any attempt to execute SYS will result in the program not being loaded. Instead, multiple reads to the source and target drives will occur (to simulate the SYS activity). The normal SYS message output is displayed by the virus at the appropriate time. This virus will successfully avoid being removed by SYS. The virus does no damage. �袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴� � This document was adapted from the book "Computer Viruses", � � which is copyright and distributed by the National Computer � � Security Association. It contains information compiled from � � many sources. To the best of our knowledge, all information � � presented here is accurate. � � � � Please send any updates or corrections to the NCSA, Suite 309, � � 4401-A Connecticut Ave NW, Washington, DC 20008. Or call our BBS � � and upload the information: (202) 364-1304. Or call us voice at � � (202) 364-8252. This version was produced May 22, 1990. � � � � The NCSA is a non-profit organization dedicated to improving � � computer security. Membership in the association is just $45 per � � year. Copies of the book "Computer Viruses", which provides � � detailed information on over 145 viruses, can be obtained from � � the NCSA. Member price: $44; non-member price: $55. � � � � The document is copyright (c) 1990 NCSA. � � � � This document may be distributed in any format, providing � � this message is not removed or altered. � 훤袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴袴暠  Downloaded From P-80 International Information Systems 304-744-2253 .