Mark II Virus

Virus Name: Mark II Aliases: Mark ][ V Status: Rare Discovered: June, 1993 Symptoms: .COM file growth; file date/time changes Origin: Unknown Eff Length: 350 - 351 Bytes Type Code: PNCK - Parasitic Non-Resident .COM Infector Detection Method: F-Prot, ViruScan, IBMAV, Sweep, AVTK, NAV, NAVDX, VAlert, PCScan, ChAV, NShld, Sweep/N, NProt, AVTK/N, IBMAV/N, Innoc, NAV/N, LProt Removal Instructions: Delete infected files General Comments: The Mark II, or Mark ][, virus was submitted in June, 1993. Its origin or point of isolation is unknown. Mark II is a non-resident direct action infector of .COM programs, including COMMAND.COM. When a program infected with the Mark II virus is executed, this virus will infect one .COM program located in the current directory. Infected programs will increase in size by 350 to 351 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 have been updated to the current system date and time when infection occurred. The following text string can be found within the viral code in all Mark II infected programs: "*.COM" Mark II doesn't appear to do anything besides replicate.