今天在电脑不小心中毒了 经常 的弹出很多网站 大家帮我看下 这是什么意思 如果不行 还的从做系统 好麻烦啊

R3 - URLSearchHook: (no name) - {BD328E49-38AB-42CB-8EEA-73AA4CD2A6FD} - (no file)
O1 - Hosts: 60.191.244.5 www.163.com
O1 - Hosts: 60.191.244.5 www.qq.com
O1 - Hosts: 60.191.244.5 www.zhaotlbb.net
O1 - Hosts: 60.191.244.5 www.zhaotlbb.com
O1 - Hosts: 60.191.244.5 www.zhaojxsj.com
O1 - Hosts: 60.191.244.5 www.shuoshihua.net
O1 - Hosts: 60.191.244.5 www.123kaishi.com
O1 - Hosts: 60.191.244.5 www.zt119.com
O1 - Hosts: 60.191.244.5 www.naimawang.com
O1 - Hosts: 60.191.244.5 www.aini.net
O1 - Hosts: 60.191.244.5 www.qbwh.com

用户系统信息：Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Alexa Toolbar; .NET CLR 2.0.50727)