TB1 Virus

 Virus Name:  TB1 
 V Status:    Rare 
 Discovered:  October, 1992 
 Symptoms:    .EXE file growth 
 Origin:      Unknown 
 Eff Length:  124 - 448 Bytes 
 Type Code:   PNE - Parasitic Non-Resident .EXE Infector 
 Detection Method: [Not in Certification Set] 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The TB1 virus was submitted in October, 1992.  Its origin or point 
       of isolation is unknown.  TB1 is a non-resident, direct action 
       infector of .EXE programs. 
       When a program infected with the TB1 virus is executed, the TB1 
       virus will infect up to three .EXE programs located in the current 
       directory.  Infected programs will have a file length increase of 
       124 to 448 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.  No text strings are visible within the viral 
       TB1 doesn't appear to do anything besides replicate. 

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