Resolved w7bren.oneproxifier.com to 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206
Resolved extradq.oneproxifier.com to 220.127.116.11, 18.104.22.168
Here are two samples of what appears to be reverse proxy malware. It connects back to the indicated servers and maintains a connection, waiting to relay connections through the infected computer. It appears to only use windows servers for the back connect software.
Samples are located here.