            VIRUS CHARACTERISTICS LIST  V63
                                 Copyright 1989, McAfee Associates
                                                 408 988 3832

	The following list outlines the critical characteristics of the known
IBM PC and compatible virus strains identified by SCAN.  Beginning with 
version 63 of the list, we are including the number of known varieties
of each strain.  This number is listed in parenthesis beside the name 
of the strain.  The total number of known viruses are summed at the 
end of the list.  

==========================================================================

Infects Fixed Disk Partition Table-------------------+
Infects Fixed Disk Boot Sector---------------------+ |
Infects Floppy Diskette Boot --------------------+ | |
Infects Overlay Files--------------------------+ | | |
Infects EXE Files----------------------------+ | | | |
Infects COM files--------------------------+ | | | | |
Infects COMMAND.COM----------------------+ | | | | | |
Virus Remains Resident-----------------+ | | | | | | |
Virus Uses Self-Encryption-----------+ | | | | | | | |
                                     | | | | | | | | |
                                     | | | | | | | | |  Increase in
                                     | | | | | | | | |   Infected
                                     | | | | | | | | |   Program's
                                     | | | | | | | | |     Size
                                     | | | | | | | | |      |
                                     | | | | | | | | |      |
Virus               Disinfector      V V V V V V V V V      V        Damage
-----------------------------------------------------------------------------
5120 (2)               CleanUp       . . x x x x . . .    5120       O,P,D,L
Victor                 CleanUp       . x x x x x . . .    2458       P,D,L
JoJo                   CleanUp       . x . x . . . . .    1701       O,P
W-13 (2)               CleanUp       . . . x . . . . .     532       O,P
Slow                   CleanUp       x x . x x x . . .    1721       O,P,L
Frere Jacques          CleanUp       . x . x x x . . .    1811       O,P
Liberty                CleanUp       . x x x x x . . .    2862       O,P
Fish-6                 CleanUp       x x x x x x . . .    3584       O,P,L
Shake                  CleanUp       . x . x . . . . .     476       O,P
Murphy                 CleanUp       . x x x x x . . .    1277       O,P
V800                   CleanUp       x x . x . . . . .    none       O,P,L
Kennedy                CleanUp       . x . x . . . . .     308       O,P
Eight Tunes/1971       CleanUp       . x . x x x . . .    1971       O,P
Yankee Doodle-2        CleanUp       . . . x x . . . .    1961       O,P
June 16th              CleanUp       . . x x . . . . .    1726       F,O,P,L
XA1                    CleanUp       x . . x . . . . .    1539       F,O,P,L
1392                   CleanUp       . x x x x . . . .    1392       O,P,L
1210                   CleanUp       . x . x . . . . .    1210       O,P,L
1720                   CleanUp       . x . x x x . . .    1720       F,O,P,L
Saturday 14th          CleanUp       . x . x x x . . .     685       F,O,P,L
Korea (2)              M-DISK        . . . . . . x x .     N/A       B,O
Vcomm (3)              CleanUp       . . . . x . . . .    1074       O,P,L
ItaVir                 CleanUp       . . . . x . . . .    3880       O,P,L,B
Solano (2)             CleanUp       . x . x . . . . .    2000       O,P,L
V2000 (3)              CleanUp       . x x x x x . . .    2000       O,P,L
1554                   SCAN/D        . x x x x . . . .    1554       O,P,L
512 (4)                SCAN/D        . x x x . . . . .    none       O,P,L
EDV (2)                M-DISK        . x . . . . x x x     N/A       B,O
Joker                  CleanUp       . x x x . . . . .               O,P
Icelandic-3            CleanUp       . x . . x . . . .     853       O,P
Virus-101              CleanUp       x x x x x x x . .    2560       P
1260                   CleanUp       x . . x . . . . .    1260       P
Perfume (2)            CleanUp       . . . x . . . . .     765       P
Taiwan (2)             CleanUp       . . . x . . . . .     708       P
Chaos                  MDISK         . x . . . . x x .     N/A       B,O,D,F  
Virus-90               CleanUp       . x . x . . . . .     857       P
Oropax (3)             CleanUp       . x . x . . . . .    2773       P,O
4096 (2)               CleanUp       . x x x x x . . .    4096       D,O,P,L
Devil's Dance          CleanUp       . x . x . . . . .     941       D,O,P,L
Amstrad (5)            CleanUp       . . . x . . . . .     847       P
Payday                 CleanUp       . x . x x x . . .    1808       P
Datacrime II-B         CleanUp       x . x x x . . . .    1917       P,F
Sylvia/Holland         CleanUp       . . . x . . . . .    1332       p     
Do-Nothing             CleanUp       . x . x . . . . .     608       p 
Sunday (2)             CleanUp       . x . x x x . . .    1636       O,P
Lisbon (2)             CleanUp       . . . x . . . . .     648       P
Typo/Fumble            CleanUp       . x . x . . . . .     867       O,P
Dbase                  CleanUp       . x . x . . . . .    1864       D,O,P 
Ghost Boot Version     MDISK         . x . . . . x x .     N/A       B,O
Ghost COM Version      CleanUp       . . . x . . . . .    2351       B,P 
New Jerusalem          CleanUp       . x . x x x . . .    1808       O,P
Alabama (2)            CleanUp       . x . . x . . . .    1560       O,P,L 
Yankee Doodle (3)      CleanUp       . x . x x . . . .    2885       O,P 
2930                   CleanUp       . x . x x . . . .    2930       P
Ashar                  CleanUp       . x . . . . x . .     N/A       B
AIDS (3)               CleanUp       . . . x . . . . .    Overwrites Program 
Disk Killer (2)        CleanUp       . x . . . . x x .     N/A     B,O,P,D,F
1536/Zero Bug          CleanUp       . x . x . . . . .    1536       O,P
MIX1                   CleanUp       . x . . x . . . .    1618       O,P
Dark Avenger (2)       CleanUp       . x x x x x . . .    1800       O,P,L
3551/Syslock           CleanUp       x . . x x . . . .    3551       P,D   
VACSINA (2)            CleanUp       . x . x x x . . .    1206       O,P
Ohio                   MDISK         . x . . . . x . .     N/A       B
Typo (Boot Virus)      MDISK         . x . . . . x x .     N/A       O,B
Swap/Israeli Boot      MDISK         . x . . . . x . .     N/A       B 
1514/Datacrime II      CleanUp       x . . x x . . . .    1514       P,F
Icelandic II           CleanUp       . x . . x . . . .     661       O,P
Pentagon               MDISK         . . . . . . x . .     N/A       B
3066/Traceback (2)     M-3066        . x . x x . . . .    3066       P
1168/Datacrime-B       CleanUp       x . . x . . . . .    1168       P,F
Icelandic (2)          CleanUp       . x . . x . . . .     642       O,P
Saratoga               CleanUp       . x . . x . . . .     632       O,P
405                    CleanUp       . . . x . . . . .    Overwrites Program
1704 Format            CleanUp       x x . x . . . . .    1704       O,P,F
Fu Manchu (2)          CleanUp       . x . x x x . . .    2086       O,P
1280/Datacrime (2)     CleanUp       x . . x . . . . .    1280       P,F
1701/Cascade           CleanUp       x x . x . . . . .    1701       O,P
1704/CASCADE-B (9)     CleanUp       x x . x . . . . .    1704       O,P
Stoned/Marijuana (2)   CleanUp       . x . . . . x . x     N/A       O,B,L
1704/CASCADE           CleanUp       x x . x . . . . .    1704       O,P
Ping Pong-B (2)        CleanUp       . x . . . . x x .     N/A       O,B
Den Zuk (3)            MDISK         . x . . . . x . .     N/A       O,B
Ping Pong (3)          CleanUp       . x . . . . x . .     N/A       O,B
Vienna-B               CleanUp       . . . x . . . . .     648       P
Lehigh                 CleanUp       . x x . . . . . .  Overwrites   P,F 
Vienna/648 (14)        M-VIENNA      . . . x . . . . .     648       P
Jerusalem-B            CleanUp       . x . x x x . . .    1808       O,P
Yale/Alameda (2)       CleanUp       . x . . . . x . .     N/A       B
Friday 13th COM        CleanUp       . . . x . . . . .     512       P
Jerusalem (9)          CleanUp       . x . x x x . . .    1808       O,P
SURIV03                CleanUp       . x . x x x . . .               O,P   
SURIV02                CleanUp       . x . . x . . . .    1488       O,P
SURIV01                CleanUp       . x . x . . . . .     897       O,P
Pakistani Brain (3)    CleanUp       . x . . . . x . .     N/A       B

Total Known Viruses - 167

Legend:

Damage Fields -	B - Corrupts or overwrites Boot Sector
				O - Affects system run-time operation
				P - Corrupts program or overlay files
				D - Corrupts data files
				F - Formats or erases all/part of disk
				L - Directly or indirectly corrupts file linkage

Size Increase -	The length, in bytes, by which an infected
               	program or overlay file will increase

Characteristics - x - Yes
                  . - No

Disinfectors -	SCAN/D 	 - VIRUSCAN with /D option
             	SCAN/D/A	 - VIRUSCAN with /D and /A options
             	MDISK/P	 - MDISK with "P" option
              	All Others - The name of disinfecting program
           Note:
                  The SCAN /D option will overwrite and then delete the
                  entire infected program.  The program must then be
                  replaced from the original program diskette.  If you wish
                  to try and recover an infected program, then use the
                  named disinfector if available.