                    Ŀ
                            VIRUS REPORT         
                          Do Nothing Virus       
                    

Synonyms: Stupid virus

Date of Origin: October, 1989.

Place of Origin: Israel.

Host Machine: PC compatibles.

Host Files: Resident. Infects COM files.

Increase in Size of Infected Files: 608 bytes.

Nature of Damage: Corrupts program files. Does no apparent damage.

Detected by: Scanv49+, F-Prot, Pro-Scan.

Removed by: CleanUp, Scan/D, or F-Prot.

     This virus was first reported in October, 1989 by Uval Tal in Israel.
It infects the first COM file in the current directory, and will
re-infect it again and again. It infects no other files, and causes no
other damage.

     It has been called the "stupid" virus because it is so ineffectual
compared to other viruses.  For instance:

*   It always installs in memory in the same location, at address
    9800:100H

*   Any program which attempts to use this memory location destroys the
    memory-resident copy of the virus.

*   It can only infect systems with 640K of memory.

*   It can not reach across directories.

*   It cannot determine if the file it is infecting has previously been
    infected.

*   It does no apparent damage to anything but the first COM file in a
    directory.


ͻ
  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.                           
ͼ

Downloaded From P-80 International Information Systems 304-744-2253
