先参考:
http://forum.ikaka.com/topic.asp?board=28&artid=8037807 蠕虫Worm.Win32.Viking.i的查杀(Logo1_.exe)
http://www.54master.com/bbs/thread-10608-1-1.html [网星原创]关于 Logo1_.exe病毒解决方案及免疫补
http://forum.ikaka.com/topic.asp?board=28&artid=8098930 流行病毒Worm.Viking(logo1_.exe)的专杀工具
建议到http://www.spywareinfo.com/~merijn/files/hijackthis.zip下载Hijackthis,扫个日志上来