My MacBook experienced what I think was called a Kernel Panic (see below screen capture) two days ago. I was unable to boot into the Mac OS X operating system, and had to perform a system restore from my OS X disc.

Subsequently, I ran a virus scan using Sophos, which, according to the log, found a possible Zip Bomb (see below abridged scan log). This was recorded as an error but not a virus. I've never even heard of a Zip Bomb before, but Wikipedia defines it in
this entry. Coincidence or unrelated? As my college Probability professor taught me, which I'll paraphrase, "correlation does not mean causation". I can find very little info online on bootroot.loader -- is this a zip bomb or a legitimate linux/OS X function?
Error: File not scanned (appears to be a ‘zip bomb’)
Joss Whedon:System:Library:PrivateFrameworks:MediaKit.framework: Versions:A:Resources:MKDrivers.bundle:Contents:Resources:bootroot.loader
Info: Immediate job completed at 1:39:36 PM on Saturday, November 3, 2007
512774 items scanned, 0 viruses detected, 5 errors