It appears that Apple threw together a system to detect this class of malware and remove it from the store (details).

It's just all kinds of amusing that the Great Firewall can be blamed as part of the problem here. No firewall and there would be no third-party sharing of dev tools. The same issue applies for Android. No firewall and the Google Play Store would be dominant in China. Instead, there are crappy Chinese app stores which "repackage" legit apps and add malware (typical article).