TB1 Virus

Virus Name: TB1 Aliases: 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 code. TB1 doesn't appear to do anything besides replicate.