Okay, got info from my host. Turns out that their data abuse centre detected abuse from the next script(s):
X-PHP-Originating-Script: 10065

earch.php
... /public_html/themes/effervescence_plus/search.php
... /public_html/themes/stopdesign/search.php
... /public_html/themes/default/search.php
... /public_html/themes/zpmasonry/search.php
... /public_html/themes/zpmobile/search.php
... /public_html/themes/zenpage/search.php
... /public_html/themes/garland/search.php
My site is allready back online but still it's kinda weird? I will deactivate the search option on my site since there is no need to use that on my site. But still curious on how suddenly my hosts detects that as a threat even though it's been on my site since September 2012.