Any knowledge of " VirTool.DOS.Sfc " ?

[Hasse]

Hi everybody.
Does anybody have any knowledge of VirTool.DOS.Sfc ?
Didn't find any useful info on the net or in the archives.
Is it a virus or a trojan ?
It popped up when I did a virri-scan with ClamAV.
" /usr/ports/distfiles/j2sdk-1_4_2-src-scsl.zip: VirTool.DOS.Sfc FOUND "
The j2sdk-1_4_2-src-scsl.zip was downloaded from Sun a couple of months ago.
thor# ll /usr/ports/distfiles | grep "j2sdk-1_4_2-src-scsl.zip"
-rw-------  1 hasse  hasse  49269919 Mar 24 19:57 j2sdk-1_4_2-src-scsl.zip

TIA
/ Hasse.