User-agent: YandexSomething/1.0
Disallow: /

User-agent: Baiduspider+(+http://www.baidu.com/search/spider.htm)
Disallow: /

User-agent: Baiduspider+(+http://www.baidu.jp/spider/)
Disallow: /

User-agent: Sosospider+(+http://help.soso.com/webspider.htm)
Disallow: /

User-agent: YandexSomething
Disallow: /

User-agent: Baiduspider
Disallow: /

User-agent: Baiduspider+
Disallow: /

User-agent: Sosospider
Disallow: /