                    Ŀ
                            VIRUS REPORT         
                      Icelandic Virus Version 2  
                    

Synonyms: System Virus, One in Ten virus

Date of Origin: July, 1989.

Place of Origin: Iceland.

Host Machine: PC compatibles.

Host Files: Remains resident. Infects EXE files.

Increase in Size of Infected Files: 632 or 661 bytes.

Nature of Damage: Affects system run-time operation. Corrupts program or
overlay files.

Detected by: Scanv56+, F-Prot, IBM Scan, Pro-Scan.

Removed by: CleanUp, Scan/D, or F-Prot.

Derived from: Icelandic virus.

Scan Code: You can search at offset 0B8H for 2E C6 06 79 02 02 90 50 53
51.

     This version of the Icelandic virus differs from the Icelandic in
that it bypasses INT21 and doesn't have the code to mark a cluster bad.
It doesn't have the INT13 check that the second version does.

     Each time the Icelandic-II virus infects a program, it will modify
the file's date, thus making it fairly obvious that the program has been
changed. The virus will also remove the read-only attribute from files,
but does not restore it after infecting the program.

     The Icelandic-II virus can infect programs even if the system is
running an anti-viral TSR that monitors interrupt 21, such as FluShot+.

     On hard disks larger than 10 MB, there are no bad sectors marked in
the FAT as there is with the Icelandic virus.

     Although this version has been called version 2, it may actually have
been the first released draft, and the Icelandic 1 may be the second.


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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.                                       
                                                                    
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