%%File: VIRS0215.TXT
%%Name/Aliases: Cascade, 1704, 17Y4, 1704 B, 1704 C, Cascade A,  Falling 
Tears, The Second Austrian Virus, Autumn, Blackjack, Falling Leaves, 
Cunning, Fall, Falling Letters, Herbst, Cascade YAP, YAP,Jo-Jo, Formiche
%%Platform: PC/MS-DOS
%%Type: Program., Encrypted/Stealth The virus actively hides., 
%%Disk Location: COM application.
%%Features: Encrypted, Stealth, Direct acting.
%%Damage: Interferes with a running application., Corrupts a program or 
overlay files.
%%Size: 1704, 1701
%%See Also: 1701
%%Notes: Spreads between COM files.  Occasionally causes odd screen 
behavior (the characters on the screen fall into a heap at the bottom of 
the screen!).  One rare variant can destroy data on hard disks.  see 
also 1701
Two different Cascade variants were called Cascade YAP.  can be called 
YAP as well.
Uses variable encryption, not polymorphic (virus-l, v5-097)  The 
characters on the screen fall into a heap at the bottom of the screen!     
v6-151: At least one anti-virus program can detect and remove Cascade 
(691, 1701.G, 1701.H, 1701.J, 1701.K, 1701.L, 1704.L, 1704.N, 1704.O and 
1704.P)