Today hxxp://www.4399.com is unblocked, but as discussed here it is confirm infected https://forum.avast.com/index.php?topic=152484.0 . I don’t know why the detection is removed.
Apart from 4399小游戏 (hxxp://www.4399.com), 7k7k小游戏 (hxxp://www.7k7k.com) also use “cnzz” in game pages
The cnzz ads is already blacklisted by malwaredomain.com as stated in urlquery, for example
[b]7k7k sample
game name: 7k7k龙斗士 (hxxp://news.7k7k.com/lds/)
report: http://urlquery.net/report.php?id=1406703623254
4399 sample
game name: 4399赛尔号 (hxxp://www.4399.com/flash/seer.htm)
report: http://urlquery.net/report.php?id=1406719729940[/b]
notice that some of the online game also have redkit exploit url pattern detected, for example
[b]7k7k sample
game name: 7k7k奥比岛 (hxxp://news.7k7k.com/aobi/)
report: http://urlquery.net/report.php?id=1406698865199
4399 sample
game name: 4399奥奇传说 (hxxp://news.4399.com/aoqi/)
report: http://urlquery.net/report.php?id=1406695991405[/b]
Me neither…!? ???
You can report it as dangerous here: http://www.avast.com/contact-form.php