o.k. thanks for the correction and sorry for the false information
i got curious and did a research for the icq thing.
on this site they propose to put cb.icq.com in the host file. (see here: http://www.cexx.org/icq.htm)
the hit4hit adress seems only to be a pay per click banner site. i didn't find any information refering to an software.
the last one verisign is a plugin for internet explorer. verisign should not promote spyware, but if you don't need it uninstall it. (see under 5) : http://www.idnnow.com/faqs.jsp)