Since there is no write ups in the F-Secure Weblog.
I am suggesting if you can check this link out for Trojan Adware Yontoo.1 Mac OS X virus removal.
Via this link.
Hope this help!
http://community.f-secure.com/t5/Mac-Protection/Trojan-Adware-for-Mac-OS-X-quot/m-p/23938/highlight/false#M168
Thanks to Cnet and Maclife tips!