Dagger Virus

Virus Name: Dagger Aliases: Dagger.483 V Status: New Discovery: January, 1996 Symptoms: .COM file growth Origin: Unknown Eff Length: 483 Bytes Type Code: PNCK - Parasitic Non-Resident .COM Infector Detection Method: IBMAV, PCScan, NAV, NAVDX, AVTK, ViruScan 2.50+, F-Prot, ChAV, IBMAV/N, LProt, NAV/N, AVTK/N, NShld 2.32 9606+, Innoc 4.0+ Removal Instructions: Delete infected files General Comments: The Dagger virus was received in January, 1996. Its origin or point of isolation is unknown. Dagger is a non-resident, direct action infector of .COM files, including COMMAND.COM. When a program infected with the Dagger virus is executed, this virus will infect one .COM file located in the current directory. Infected .COM files will have a file length increase of 483 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. The following text strings are visible within the viral code: ".. *.* *.COM" "@dH" The second text string can be found at the very end of all infected files.