ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³ VIRUS REPORT ³ ³ Ghost Virus (COM version) ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ Synonyms: Ghostballs. Date of Origin: September, 1989. Place of Origin: Iceland. Host Machine: PC compatibles. Host Files: COM files. Increase in Size of Infected Files: 2351 bytes. Nature of Damage: Corrupts or overwrites boot sector; corrupts COM files. Detected by: Scanv46+, F-Prot, IBM Scan, Pro-Scan. Removed by: MDisk or DOS SYS command (accompanied by erasing infected COM files), or use CleanUp or F-Prot. The Ghost viruses (both boot and COM) were discovered at Icelandic University by Fridrik Skulason. The Ghost COM virus infects generic COM files, increasing the file size by 2,351 bytes. Symptoms of this virus are very similar to the Ping Pong virus, and random file corruption may occur on infected systems. The Ghost COM virus may be the first virus to infect both files (COM files in this case) and boot sectors. After the boot sector is infected, it also acts as a virus (see Ghost BOOT virus). To remove this virus, turn off the computer and reboot from a write-protected disk. Then use MDisk, NDD, or the DOS SYS command to replace the boot sector on the infected disk. Any infected .COM files must also be replaced with clean copies. ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» º This document was adapted from the book "Computer Viruses", º º which is copyright and distributed by the National Computer º º Security Association. It contains information compiled from º º many sources. To the best of our knowledge, all information º º presented here is accurate. º º º º Please send any updates or corrections to the NCSA, Suite 309, º º 4401-A Connecticut Ave NW, Washington, DC 20008. Or call our BBS º º and upload the information: (202) 364-1304. Or call us voice at º º (202) 364-8252. This version was produced May 22, 1990. º º º º The NCSA is a non-profit organization dedicated to improving º º computer security. Membership in the association is just $45 per º º year. Copies of the book "Computer Viruses", which provides º º detailed information on over 145 viruses, can be obtained from º º the NCSA. Member price: $44; non-member price: $55. º º º º The document is copyright (c) 1990 NCSA. º º º º This document may be distributed in any format, providing º º this message is not removed or altered. º ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ  Downloaded From P-80 International Information Systems 304-744-2253