Fingers Virus

 Virus Name:  Fingers 
 Aliases:     V08-15, KEZB 
 V Status:    Rare 
 Discovered:  May 1991 
 Symptoms:    .COM & .EXE growth; TSR; message; system hang 
 Origin:      Germany 
 Eff Length:  1,322  Bytes 
 Type Code:   PRsAK - Parasitic Resident .COM & .EXE Infector 
 Detection Method:  ViruScan, F-Prot, Sweep, AVTK, 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 Fingers virus was isolated in Germany in May, 1990.  Fingers is 
       a memory resident infector of .COM and .EXE programs, including 
       The first time a program infected with Fingers is executed, the 
       virus will install itself memory resident as a low system memory TSR 
       of 1,728 bytes.  It will hook 21.  If the system date is after 
       November 11, 1990, the virus will also hook interrupt 09. 
       After Fingers is memory resident, it will infect .COM and .EXE 
       programs when they are executed.  If COMMAND.COM is executed, it 
       will be infected.  Infected files increase in size by 1,322 to 1,337 
       bytes.  Fingers will be found at the end of infected programs.  The 
       file date and time in the DOS disk directory will not have been 
       Programs infected with Fingers will contain the following text 
       Fingers activates when the system date is after November 11, 1990, 
       and the system user has entered 3000 characters from the keyboard. 
       At that time, the virus will display the second text string above 
       and the system will be halted. 

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