What is Net-Worm.PHP.Mongiko trying to do?

I found several lines of this request in my web server access log:

Source IP       Dest IP Request                                                                 Stat User agent
217.172.190.19  1.2.3.4 POST /?cmd=info&key=a7aa3875fc4422ca78f7b4216205b9a5&ip=1.2.3.4 HTTP/1.1 200 Net-Worm.PHP.Mongiko.a

Tried to Google, but found no information. What is Net-Worm.PHP.Mongiko and what is it trying to post on my website?