Luca-309 Virus

 Virus Name:  Luca-309 
 V Status:    Rare 
 Discovered:  January, 1993 
 Symptoms:    .COM file growth 
 Origin:      Unknown 
 Eff Length:  309 Bytes 
 Type Code:   PRCK - Parasitic Resident .COM Infector 
 Detection Method:  AVTK, F-Prot, ViruScan, Sweep, IBMAV, 
                    NAV, NAVDX, VAlert, PCScan, ChAV, 
                    NShld, Sweep/N, AVTK/N, NAV/N, NProt, IBMAV/N, Innoc, 
 Removal Instructions:  Delete infected programs 
 General Comments: 
       The Luca-309 virus was submitted in January, 1993.  Luca-309 is a 
       memory resident, direct action .COM infector.  It does infect 
       When the first Luca-309 infected program is executed, the Luca-309 
       virus will install itself memory resident in a "hole" in low 
       allocated system memory, hooking interrupt 21.  There will be no 
       change to total system and available free memory as indicated by 
       the DOS CHKDSK program.  The virus will also infect one .COM program 
       located in the current directory. 
       Once memory resident, the Luca-309 virus will infect one .COM 
       program located in the current directory each time an infected 
       program is executed.  Infected programs will have a file length 
       increase of 309 bytes with the virus being located at the end of 
       the file.  The program's date and time in the DOS disk directory 
       listing will not be altered.  The following text string is visible 
       within the Luca-309 viral code in all infected programs: 
       It is unknown if Luca-309 does anything besides replicate. 

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