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NCSA Virus Report #89
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? VIRUS REPORT ?
? Lehigh-2 ?
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Host Machine: PC compatibles.
Host Files: Remains resident. Infects COMMAND.COM only.
Increase in Size of Infected Files: overwrites files.
Nature of Damage: Corrupts program or overlay files. Overwrites the FAT
and boot sector after infecting four floppies.
Detected by: Scanv56+, F-Prot, IBM Scan, Pro-Scan.
Removed by: CleanUp, or use MDisk and replace COMMAND.COM with a clean
copy, or use F-Prot.
Derived from: Lehigh virus.
Scan Code: 50 53 80 FC 4B 74 08 80 FC 4E 74 03 E9 77 01 8B DA 80 7F 01 3A
75 05 8A 07 EB 07.
A version of the Lehigh virus modified to retain its infection
counter in RAM. After 10 infections, it corrupts the boot sector and
FATs.
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? 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 © 1990 NCSA. ?
? ?
? This document may be distributed in any format, providing ?
? this message is not removed or altered. ?
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