You know those URL shortening services like tinyurl.com, is.gd and bit.ly? Here is an example: http://twurl.nl/jvuncl. Looks like a pretty normal shortened URL, right? Now eat this:
~/tmp$ wget http://twurl.nl/jvuncl
--13:56:22-- http://twurl.nl/jvuncl
=> `jvuncl'
Resolving twurl.nl …Ough, my blog just got infected with Blog.Worm.
Apparently it spreads just by visiting http://www.moox.nl/blogworm/. Any browser will do (even lynx, links or internet explorer)
Man, this is heavy linux/unix commandline fun:
which which
locate locate
man man
help help
info info
whatis whatis
echo echo
touch touch
yes yes
whereis whereis
All of them work without error (unless the programm is not installed or does not work of course)
With nice and time …