%%File: VIRS0040.TXT
%%Name/Aliases: MBDF-B, MBDF B
%%Platform: Macintosh
%%Type: Bogus resource., MBDF
%%Disk Location: Application programs and Finder.
%%Features: 
%%Damage: Corrupts a program or overlay files.
%%Size: Modifies CODE #0, adds 630 bytes to infected files
%%See Also: MBDF-A
%%Notes: Virus: MBDF-B
 Damage: minimal, but see below
 Spread: probably limited
 Systems affected:  Apple Macintosh computers.  The virus spreads on  
all types of Macs except MacPlus systems and  (perhaps) SE systems; it 
may be present on MacPlus and SE systems and not spread, however.
 
 A new variant of the MBDF-A virus has recently been discovered.  It 
seems that a person or persons unknown has modified the original MBDF-A 
virus slightly and released it. Like the original, this virus does not 
intentionally cause damage, but it may spread widely.
 
 The virus does not necessarily exhibit any symptoms on infected 
systems.  Some abnormal behavior has been reported in machines infected 
with MBDF-A, involving system crashes and malfunctions in various 
programs, which may possibly be traced to the virus.  Some specific 
symptoms include:
     * Infected Claris applications will indicate that they have been 
altered 
     * The "BeHierarchic" shareware program ceases to work correctly.
     * Some programs will crash if something in the menu bar is selected 
with the mouse.
 The MBDF-B virus should behave similarly and will spread under both 
System 6 and System 7.