Wisconsin Virus

 Virus Name:  Wisconsin 
 Aliases:     Death To Pascal 
 V Status:    Rare 
 Discovered:  September, 1990 
 Symptoms:    .COM growth; message; write protect Errors; .PAS files 
              disappear; file date/time changes 
 Origin:      Wisconsin, United States 
 Eff Length:  825 Bytes 
 Type Code:   PNC - Parasitic Non-Resident .COM Infector 
 Detection Method:  ViruScan, AVTK, F-Prot, NAV, Sweep, IBMAV, 
                    NAVDX, VAlert, PCScan, ChAV, 
                    NShld, LProt, Sweep/N, Innoc, NProt, AVTK/N, 
                    NAV/N, IBMAV/N 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Wisconsin virus was received in September, 1990.  The origin of 
       the sample was Wisconsin, which is where its name came from.  It is 
       also reported to have been isolated at about this same time in 
       California.  Wisconsin is a non-resident infector of .COM files, 
       but it does not infect COMMAND.COM. 
       When a program infected with the Wisconsin virus is executed, the 
       virus will alter the date and time of the program being executed to 
       the current system date and time.  The Wisconsin virus will then 
       infect one other .COM file in the current directory.  Infected 
       files will increase in length by 825 bytes, with the viral code 
       located at the beginning of the file. 
       If an attempt is made to execute a program infected with the 
       Wisconsin virus from a write-protected diskette, a write protect 
       error will occur.  This virus does not intercept this error. 
       Infected programs may display the following message: 
               "Death to Pascal." 
       When this message is displayed, any .PAS files located in the 
       current directory will be deleted.  This message cannot be seen in 
       infected files as it is encrypted. 

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