This indicates an attempt to access QQ Instant Messenger.
QQ, also known as Tencent QQ, is an IM software developed by Tencent. It offers various services which include video and audio calls, e-payments, online games, music, microblogging and movies. QQ has released an international version of its software, QQ International which displays everything in non-Mandarin languages. QQ is available for the web, desktop platform - Microsoft Windows and Mac OS X and mobile platforms - Android and iOS.