Sylvia Virus

 Virus Name:  Sylvia 
 Aliases:     Holland Girl 
 V Status:    Rare 
 Discovered:  December, 1989 
 Symptoms:    .COM growth; TSR 
 Origin:      Netherlands 
 Eff Length:  1,332 Bytes 
 Type Code:   PRsC - Resident Parasitic .COM Infector 
 Detection Method:  ViruScan, F-Prot, AVTK, NAV, Sweep, IBMAV, PCScan, 
                    NAVDX, ChAV, 
                    NShld, LProt, Sweep/N, Innoc, NProt, AVTK/N, 
                    NAV/N, IBMAV/N 
 Removal Instructions:  F-Prot, or delete infected files 
 General Comments: 
       The Sylvia, or Holland Girl, virus was first reported by Jan Terpstra 
       of the Netherlands.  This virus is memory resident and infects only 
       .COM files, increasing their size by 1,332 bytes.  The virus 
       apparently does no other damage, and does not infect COMMAND.COM. 
       The virus's name is due to the fact that the virus code contains the 
       name and phone number of a girl named Sylvia in Holland, along with 
       her address, requesting that post cards be sent to her.  The virus 
       is believed to have been written by her ex-boyfriend. 
       Known variant(s) of Sylvia are: 
       Sylvia 2: The Sylvia 2, or Holland Girl 2, virus is a modified 
              version of the Sylvia virus described above.  This variant is 
              a non-resident infector of .COM files, including COMMAND.COM. 
              Execution of an infected program will result in up to four 
              .COM programs becoming infected.  These programs may be 
              located in the C: drive root directory, or the current drive's 
              current directory.  Infected programs will have a file length 
              increase of 1,332 bytes with the virus being located at the 
              beginning of the file.  The following text strings can be 
              found within the viral code, along with Sylvia's last name 
              and full address which is not being repeated here: 
              "This program is infected by a HARMLESS Text Virus V2.1" 
              "Send a FUNNY postcard to : Sylvia" 
              "You might get an ANTIVIRUS program....." 
              Origin:  New Brunswick, Canada  January, 1991. 

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