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- ┌─────────────────────────────┐
- │ VIRUS REPORT │
- │ Pentagon Virus │
- └─────────────────────────────┘
-
- Place of Origin: Washington, D.C.
-
- Host Machine: PC compatibles.
-
- Host Files: Resident. 360K floppy disk boot sector.
-
- Increase in Size of Infected Files: n/a.
-
- Nature of Damage: Corrupts or overwrites boot sector.
-
- Detected by: Scanv56+, F-Prot.
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- Removed by: MDisk, CleanUp, or DOS SYS command.
-
- Scan Code: You can search at offset 03EH for 8E D8 FB BD 44 7C 81 76 06.
-
- The Pentagon virus consists of:
-
- * a normal MS-DOS 3.20 boot sector where the name "IBM" has been
- replaced by "HAL".
-
- * A file with the name of the hex character 0F9H. This file contains the
- portion of the virus code which would not fit into the boot sector, as
- well as the original boot sector of the infected disk. This file is
- addressed by its absolute address, rather than name.
-
- * A file named PENTAGON.TXT that does not appear to be used or contain
- any data. Portions of this virus are encrypted.
-
- The Pentagon virus will look for and remove the Brain virus from any
- disk that it infects. It is memory resident, occupying 5K of RAM, and can
- survive a warm reboot.
-
-
- ╔════════════════════════════════════════════════════════════════════╗
- ║ 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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