Nog niet hier gezien, update je phpBB versie asap!
http://www.kaspersky.com/news?id=156681162
http://www.europe.f-secure.com/v-descs/santy_a.shtml
http://isc.sans.org/diary.php?date=2004-12-21
http://www.viruslist.com/en/weblog
Santy worm defaces websites using php bug
A worm taking advantage of a phpBB vulnerability has been defacing websites and explains a number of reports we received today regarding deface web servers. The worm is written in Perl and seems to overwrite all writeable asp/php/htm/shtm files on the server.
Note: we earlier reported that it takes advantage of a php vulnerability. This does not seem to be the case.
phpBB 2.0.10 and earlier. The current version of phpBB (2.0.11, released Nov. 18th) fixes this problem. Nevertheless, its still a good idea to update php.
We do now have a couple of versions of the code. The virus appears to increment a 'generation' number whenever it infects a site. If you have a copy of a generation < 4, please let us know.
A few more details from a preliminary analysis:
[snip...]

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In ieder geval niet zo vaak als dat al die websites nu gehacked worden