strange link in mysql table "visitors->ruri"

[jdleung]

recently I found some strange links in the visitor table

/index.php?x=http://www.extremus.info/cmd/tool25.d...
/index.php?x=http://busca.uol.com.br/uol/index.htm...
/index.php?showimage=273/templates/Tmysimple/scripts/styleswitcher.js

is it a spam?

[Connie]

the first one is a portal site from Bulgaria, could be a spammer...

the second one is a search engine from Brazil