Avast is blocking it for a very good reason:
http://zulu.zscaler.com/submission/show/b4fe84064233314b2fe90b41e6c2f3e4-1382523915

Does the message mean, my system is infected? Or was it does a warning?
The message is very clear. avast blocked access to (potential) malware so that it would not infect your system.

Let’s check your system, follow these instructions please: http://forum.avast.com/index.php?topic=53253.0