There are 3 variants in 2 versions:
- Virus.DOS.BugsBunny.497 (plus B)
This is a dangerous non-memory resident file overwriting variant. When it is run, it overwrites every DOS executable in current directory except COMMAND.COM.
BugsBunny.497 and 497.bEdit
These are the harmless memory resident parasitic variants. When the virus is loaded into memory, it infects any DOS executable that is run, except COMMAND.COM and files that are smaller than 200 bytes.
Infected files will have the seconds value of 62 in their timestamp.
The following table shows the memory usage of the variants.
|Variant||Memory usage in bytes|
|BugsBunny.497 (plus B)||544|
On running infected programs, instead of running the host program, the following message is displayed:
Datei nicht ausführbar. Neujahrsgrüße von Bugs-Bunny (ß_¿-ßTTí) Bugs-Bunny Virus, Created by iRS-EB 03848
Translation (from German):
File can not be executed. New Year Greetings from Bugs-Bunny (ß_¿-ßTTí) Bugs-Bunny Virus, Created by iRS-EB 03848
BugsBunng.497 and 497.bEdit
These variants do not manifest themselves at anyway.
BugsBunny.282 contains the internal text string:
BugsBunny.497 and 497.b contain the internal text strings:
COMMAND.COM BUGS BUNNY