Hi rickyyeung,
It is good to see that Avast Online Security now alerts -a.4399.cn/mobile/ajax/special-index-id-89-lastId-.html for example.
Sucuri flags: ISSUE DETECTED DEFINITION INFECTED URL
Website Malware malware-entry-mwanomalysp8 htxp://a.4399.cn
Anomaly behavior detected (possible malware). Details: http://sucuri.net/malware/malware-entry-mwanomalysp8
System Details:
Running on: nginx/1.4.1
Via proxy: 1.1
Outdated Web Server Nginx Found: nginx/1.4.1 exploitable: http://nginx.org/en/security_advisories.html
Netcraft Risk Status 1 red out of 10: http://toolbar.netcraft.com/site_report?url=a.4399.cn
Funny Quttera does not detect anything: http://quttera.com/detailed_report/a.4399.cn
polonus