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- ┌─────────────────────────────┐
- │ VIRUS REPORT │
- │ 4096 virus │
- └─────────────────────────────┘
-
- Synonyms: Century Virus, IDF Virus, Stealth Virus, 100 Years Virus
-
- Date of Origin: January, 1990.
-
- Host Machine: PC compatibles.
-
- Increase in Size of Infected Files: 4096 bytes.
-
- Nature of Damage: Remains resident. Infects COMMAND.COM, COM, EXE,
- overlay files.
-
- Detected by: Scanv53+, F-Prot, IBM Scan, Pro-Scan.
-
- Removed by: CleanUp, Scan/D, F-Prot. See below.
-
- This virus is one of the most brutal ever developed, and no one seems
- to successfully recover from it. It infects COM, EXE, and overlay files,
- adding 4,096 bytes to their length. Once the virus is resident in memory,
- the increase in length will not appear in a directory listing, and it
- will infect any executable file that is opened, including those opened
- with the COPY or XCOPY command.
-
- Through FAT manipulation, the virus destroys files through a slow
- crosslinking process that would seem to be a hardware problem.
-
- If the virus is present in memory and you attempt to copy infected
- files, the new copy of the file will not be infected if the extension is
- neither COM nor EXE. Thus, one way to disinfect a system is as follows:
-
- * copy all the infected files to diskettes with a non-executable file
- extension. For instance, you might COPY *.EXE *.E and COPY
- *.COM *.C.
-
- * Shut the system off. Reboot from an uninfected and write-protected
- disk.
-
- * Delete any infected files and restore the backed up files to the
- original executable file names and extensions. (COPY *.C *.COM; COPY
- *.E *.EXE)
-
- This procedure will not save any cross-linked files, however.
-
- Some notes:
-
- * Systems infected with this virus may hang after September 22 of any
- year, due to a bug. This is the birthday of Bilbo and Frodo Baggin, in
- the Lord of the Rings.
-
- * The virus contains an unused boot sector, which if copied to the boot
- sector of a diskette, will produce the message "FRODO LIVES".
-
-
- ╔════════════════════════════════════════════════════════════════════╗
- ║ This document was adapted from the book "Computer Viruses", ║
- ║ which is copyright and distributed by the National Computer ║
- ║ Security Association. It contains information compiled from ║
- ║ many sources. To the best of our knowledge, all information ║
- ║ presented here is accurate. ║
- ║ ║
- ║ Please send any updates or corrections to the NCSA, Suite 309, ║
- ║ 4401-A Connecticut Ave NW, Washington, DC 20008. Or call our BBS ║
- ║ and upload the information: (202) 364-1304. Or call us voice at ║
- ║ (202) 364-8252. This version was produced May 22, 1990. ║
- ║ ║
- ║ The NCSA is a non-profit organization dedicated to improving ║
- ║ computer security. Membership in the association is just $45 per ║
- ║ year. Copies of the book "Computer Viruses", which provides ║
- ║ detailed information on over 145 viruses, can be obtained from ║
- ║ the NCSA. Member price: $44; non-member price: $55. ║
- ║ ║
- ║ The document is copyright (c) 1990 NCSA. ║
- ║ ║
- ║ This document may be distributed in any format, providing ║
- ║ this message is not removed or altered. ║
- ╚════════════════════════════════════════════════════════════════════╝
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