Pirate Virus

 Virus Name:  Pirate 
 Aliases:     Lima 
 V Status:    Viron 
 Discovered:  September, 1991 
 Symptoms:    .COM program corruption; system hangs 
 Origin:      Lisbon, Portugal 
 Eff Length:  609 Bytes 
 Type Code:   ONCK - Overwriting Non-Resident .COM Infector 
 Detection Method:  ViruScan, AVTK, Sweep, F-Prot, ChAV, 
                    NAV, IBMAV, NAVDX, VAlert, PCScan, 
                    NShld, LProt, Sweep/N, Innoc, NProt, AVTK/N, 
                    NAV/N, IBMAV/N 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Pirate virus was discovered in Lisbon, Portugal in September, 
       1991, by Pedro Lima.  Pirate is a non-resident overwriting virus 
       which infects .COM files, including COMMAND.COM. 
       When a program infected with Pirate is executed, this virus will 
       search the currect directory for an uninfected .COM file.  When 
       it finds an uninfected file, it will infect it, overwriting the 
       first 609 bytes of the program.  Programs infected with Pirate will 
       only increase in size if their original file length was less than 
       609 bytes.  If the original length was less than 609 bytes, then 
       the file length will become 609 bytes.  There will be no change 
       in the file's date and time in the DOS disk directory. 
       If Pirate does not find an .COM file to infect, it will continue 
       searching the current directory until the user reboots the system. 
       Attempts to boot the system from disks with a Pirate infected 
       COMMAND.COM will result in a system hang. 
       The following text string can be found in all programs infected 
       with Pirate: 
               "1989 / 1990 Software Pirates - Fast Serial - Portugal" 

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