Naught-865 Virus

Virus Name: Naught-865 Aliases: V Status: Viron Discovered: September, 1993 Symptoms: All file types may be corrupted; file date/time changes; Boot failure from system hard disk Origin: Unknown Eff Length: 865 Bytes Type Code: ONAK - Overwriting Non-Resident Generic File Infector Detection Method: AVTK, IBMAV, ViruScan, NAV, NAVDX, VAlert, F-Prot, PCScan, ChAV, AVTK/N, NShld, NProt, Sweep/N, IBMAV/N, NAV/N, LProt, Innoc Removal Instructions: Delete infected files General Comments: The Naught-865 virus was submitted in September, 1993. Its origin or point of isolation is unknown. Naught-865 is a non-resident, direct action infector of the C: drive root directory. It will infect both program and data files. When a program infected with the Naught-865 virus is executed, the Naught-865 virus will overwrite all of the program and data files present in the C: drive root directory. These files will have the first 865 bytes replaced by the Naught-865 viral code. The file's date in the DOS disk directory listing will have the year changed to the year in the current system date. The file time will be altered to the system time when infection occurred. The following text strings can be found near the beginning of all infected files: "*.*" "????????" Since Naught-865 overwrites all files in the C: drive root directory, infected systems will fail to boot. Additionally, other programs located in this directory will not function, and any data, .BAT, or configuration files in the directory will be corrupted.