Random Virus

 Virus Name:  Random 
 V Status:    Rare 
 Discovery:   January, 1993 
 Symptoms:    .COM file growth; decrease in total system & available free 
 Origin:      Australia 
 Eff Length:  615 Bytes 
 Type Code:   PRhCK - Parasitic Resident .COM Infector 
 Detection Method:  ViruScan, F-Prot, Sweep, NAV, IBMAV, AVTK, 
                    NAVDX, VAlert, PCScan, ChAV, 
                    NShld, Sweep/N, NAV/N, NProt, AVTK/N, IBMAV/N, Innoc, 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Random virus was submitted in March, 1993, following its 
       discovery in Melbourne, Australia in January, 1993.  Random is a 
       memory resident infector of .COM programs, including COMMAND.COM. 
       The first time a program infected with the Random virus is executed, 
       the Random virus will install itself memory resident at the top of 
       system memory but below the 640K DOS boundary, hooking interrupt 21. 
       Total system and available free memory, as indicated by the DOS 
       CHKDSK program, will decrease by 624 bytes.  Interrupt 12's return 
       will not be moved. 
       Once the Random virus is memory resident, it will infect .COM 
       programs when they are executed.  If COMMAND.COM is executed, it 
       will become infected.  Programs infected with the Random virus will 
       have a file length increase of 615 bytes with the virus being 
       located at the end of the file.  The file's date and time in the 
       DOS disk directory listing will not be altered.  The following text 
       strings are visible within the viral code in all Random infected 
               "A      Kevin Mitnick" 
               "U      Lenny DiCcoco" 
               "S      Hans Hubner" 
               "T          414's" 
               ".      Legion of Doom" 
               "       Phiber Optik" 
               "P         Dr Popp" 
               "       Robert Morris" 
               "1         Shooting Shark" 
               "9     Chesire Catalyst" 
               "9      Captain Crunch" 
               "2        Ron Austin" 
               "       Kevin Poulsen" 
               "are all to be congratulated" 

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