Stahl Virus

 Virus Name:  Stahl 
 Aliases:     Stahlplatte 
 V Status:    Rare 
 Discovered:  April, 1992 
 Symptoms:    .COM file growth 
 Origin:      Germany 
 Eff Length:  750 Bytes 
 Type Code:   PNCK - Parasitic Non-Resident .COM Infector 
 Detection Method:  ViruScan, AVTK, F-Prot, Sweep, IBMAV, 
                    NAV, NAVDX, VAlert, PCScan, ChAV, 
                    NShld, Sweep/N, LProt, Innoc, NProt, IBMAV/N, 
                    AVTK/N, NAV/N 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Stahl, or Stahlplatte, virus was submitted in April, 1992.  It 
       is from Germany.  Stahl is a non-resident, direct action infector 
       of .COM programs, including COMMAND.COM. 
       When a program infected with Stahl is executed, the virus will 
       infect one .COM file located in the current directory.  If the 
       virus encounters a very small .COM file when it is searching 
       for a file to infect, it will stop infecting files. 
       Programs infected with the Stahl virus will have a file length 
       increase of 750 bytes.  The virus will be located at the beginning 
       of the program.  The file's date and time in the DOS disk 
       directory listing will not be altered.  Two text strings can 
       be found in all Stahl infected programs: 
               "STAHLPLA.TTE  Ich bin da!" 
       It is unknown what Stahl does besides replicate. 

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