Bad bunny, also known as SB/Bad Bunny-A (Sophos) and StarOffice/Bad Bunny (McAfee), is a multi-platform computer worm written in several scripting languages and distributed as an OpenOffice.org document, commonly named "badbunny.odg",[1] containing a macro written in Star Basic.
Discovered on May 21, 2007, the worm spreads itself by dropping malicious script files that affect the behavior of popular IRC programs mIRC and X-Chat, causing it to send the worm to other users.[2]