Cara menemukan script atau plugins wordpress yang mengirim email ke wordpressslog@yandex.com
cd /home/usercp/public_html/wp-content/plugins/ grep -H -r "d29yZHByZXNzc2xvZ0B5YW5kZXguY29t" /home/usercp/public_html/wp-content/plugins/
d29yZHByZXNzc2xvZ0B5YW5kZXguY29t adalah encoding base64 untuk wordpressslog@yandex.com
referensi: http://wordpress.org/support/topic/rogue-emails-to-wordpressslogyandexcom?replies=4#post-4409743