Piazzolla Virus

 Virus Name:  Piazzolla 
 V Status:    Rare 
 Discovered:  July, 1992 
 Symptoms:    .COM file growth; TSR 
 Origin:      Argentina 
 Eff Length:  874 Bytes 
 Type Code:   PRsC - Parasitic Resident .COM Infector 
 Detection Method:  ViruScan, AVTK, F-Prot, Sweep, IBMAV, 
                    NAV, NAVDX, VAlert, PCScan, ChAV, 
                    NShld, LProt, Sweep/N, AVTK/N, NProt, IBMAV/N, NAV/N, 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Piazzolla virus was received from Argentina in July, 1992.  This 
       virus is a memory resident infector of .COM programs, but not 
       When the first Piazzolla infected program is executed, the Piazzolla 
       virus will install itself memory resident as a low system memory TSR 
       of 1,200 bytes.  Interrupt 21 will be hooked by the virus. 
       Once Piazzolla is memory resident, it will infect .COM programs 
       other than COMMAND.COM when they are executed.  Piazzolla infected 
       programs will have a file length increase of 874 bytes.  The virus 
       will be located at the beginning of the infected program.  The 
       file's date and time in the DOS disk directory listing will not 
       be altered.  The following text strings can be found within the 
       viral code in all Piazzolla infected programs: 
       Piazzolla doesn't do anything besides replicate. 

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