Staf Virus

 Virus Name:  Staf 
 Aliases:     Staff 
 V Status:    Rare 
 Discovered:  April, 1991 
 Symptoms:    .COM growth; messages; programs may fail to execute 
 Origin:      Unknown 
 Eff Length:  2,083 Bytes 
 Type Code:   PNCK - Parasitic Non-Resident .COM Infector 
 Detection Method:  ViruScan, F-Prot, AVTK, Sweep, 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 Staf virus was received in April, 1991.  Its origin is unknown, 
       but first reports of it were out of Europe.  This virus is a 
       non-resident direct action .COM file infector.  It will infect 
       When a program infected with the Staf virus is executed, the virus 
       will display the following message: 
               "This program has been infected by: 
                Virus Demo Ver.: 1.1 - Handle with care! 
                By STAF (Tel.: (819) 595-0787) 
                Generation #n 
                Infecting: xxxxxxxx.COM 
                Press any key to execute original program..." 
       The "n" following the pound sign above will be replaced with the 
       generation number of the virus.  The "xxxxxxxx.COM" will contain 
       the name of the .COM program in the current directory which the 
       virus has just infected.  If no uninfected .COM file existed in the 
       current directory when an infected program is executed, the 
       "Infecting:" portion of the message will be replaced with: 
               "I have infected all your files in the current directory! 
                Have a nice day!" 
       Programs infected with Staf may also fail to execute, with the 
       following message being displayed: 
               "VIRUS ERROR #nn - Aborting process." 
       Programs infected with Staf have a file size increase of 2,083 
       bytes with the virus being located at the beginning of the infected 
       file. The virus does not alter the file date and time in the disk 
       directory at the time a program is infected. 
       Staf does not do anything besides replicate. 

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