Your computer probably infected by Torjan, please referring the following:http://www.google.com.tw/search?complete=1&hl=zh-TW&client=firefox&rls=org.mozilla%3Azh-TW%3Aofficial&hs=v3R&q=%22%E6%9C%AA%E5%AE%89%E8%A3%9DTCP%2FIP%E5%82%B3%E8%BC%B8%22&meta=http://www.google.com.tw/search?complete=1&hl=zh-TW&client=firefox&rls=org.mozilla%3Azh-TW%3Aofficial&hs=v3R&q=%22%E6%9C%AA%E5%AE%89%E8%A3%9DTCP%2FIP%E5%82%B3%E8%BC%B8%22&meta=