Yikespider is more like it...
I certainly don't like the looks of this one from 22.214.171.124 a.k.a. ChinaNet Beijing. Note the different UAs literally from one second to the next, one version for HEAD and one for GET. And note the unbalanced " in the GET:
126.96.36.199.static.bjtelecom.net - - [1n/Aug/2011:0n:20:31 -0700] "HEAD
/dir/file.html HTTP/1.0" 302 0 "-" "jikespider ("Mozilla/5.0)
188.8.131.52.static.bjtelecom.net - - [1n/Aug/2011:0n:20:32 -0700] "GET
/dir/file.html HTTP/1.0" 302 215 "-" "jikespider "Mozilla/5.0
Found yet another version elsewhere:
JikeSpider Mozilla/5.0 (compatible; JikeSpider; +http
Here's some circa June 24, 2011 news about this creepy-crawler [cnngo.com
"Earlier this week, China's state-run company People’s Search announced the re-launch of its search engine Jike.com.
"Formerly named Goso.cn, the search engine was first launched by People’s Search, a joint venture between People’s Daily and People.com, in May 2010. ..."
Considering I have firewall killfile rules against umpteen Chinese CIDRs and .hta blocks against a gazillion others, I'm amazed at the relentless, troublesome, and now state-sanctioned traffic from that part of the world. And I reckon it's only going to get worse...