Wordpress dictionary attack

Today early in the morning my monitoring system notified me about unusual high outgoing traffic on my hosting platform. I traced the problem down the webserver which is also hosting this abandoned website.

Looking into this with iptraf revealed that this traffic is coming only from one IP. At first I thought anybody might grabbing my Debian packages from ftp.cyconet.org. But no, it was targeting my highly sophisticated blogging plattform.

$ grep /var/log/nginx/vhosts/access_logs/blog.waja.info-access.log | tail -2 - - [23/Mar/2015:08:20:12 +0100] "POST /wp-login.php HTTP/1.0" 404 22106 "-" "-" - - [23/Mar/2015:08:20:12 +0100] "POST /wp-login.php HTTP/1.0" 404 22106 "-" "-"
$ grep /var/log/nginx/vhosts/access_logs/blog.waja.info-access.log | wc -l
$ grep /var/log/nginx/vhosts/access_logs/blog.waja.info-access.log | wc -l
$ grep /var/log/nginx/vhosts/access_logs/blog.waja.info-access.log | \
grep -v wp-login.php | wc -l

It makes me really sad to see, that dictionary attacks are smashing with such a high power these days, even without evaluating the 404 response.