阿里云服务器，server 2008 死机，日志文件如下，请高手帮忙分析一下
#Software: Microsoft HTTP API 2.0
#Version: 1.0
#Date: 2013-10-22 05:44:21
#Fields: date time c-ip c-port s-ip s-port cs-version cs-method cs-uri sc-status s-siteid s-reason s-queuename
2013-10-22 05:44:21 123.232.112.198 7961 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-10-22 05:55:26 111.174.69.84 2941 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-10-22 05:55:46 121.229.208.44 53014 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-10-22 06:07:31 113.63.179.206 3752 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
#Software: Microsoft HTTP API 2.0
#Version: 1.0
#Date: 2013-10-22 07:00:24
#Fields: date time c-ip c-port s-ip s-port cs-version cs-method cs-uri sc-status s-siteid s-reason s-queuename
2013-10-22 07:00:24 58.32.234.155 34372 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-10-22 07:13:55 111.174.69.84 4624 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-10-22 07:13:55 111.174.69.84 4717 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-10-22 07:13:55 111.174.69.84 4711 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
略，以上都差不多，以下是最新的
2013-11-08 07:55:07 42.156.138.55 36718 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 07:59:42 124.74.147.82 64797 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 08:07:07 42.156.139.82 43962 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 08:10:17 60.19.30.73 3295 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 08:42:18 114.221.21.3 56097 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 08:53:43 157.55.33.23 57459 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 09:04:03 101.108.239.19 3626 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 09:46:43 157.55.33.40 25507 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 10:02:03 120.40.72.173 54066 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 10:02:03 120.40.72.173 54057 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 10:02:03 120.40.72.173 54065 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 10:02:03 120.40.72.173 54064 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 10:02:08 120.40.72.173 54059 115.29.170.34 80 - - - - - Timer_ConnectionIdle -
2013-11-08 10:02:08 120.40.72.173&nbs