Piazzolla Virus

Virus Name: Piazzolla Aliases: 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, Innoc 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 COMMAND.COM. 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" "COMMANDCOM" "PIAZZOLL.$$$" Piazzolla doesn't do anything besides replicate.