I appreciate the report.
Would it be possible to create a debug log of this problem?
Go to the SABnzbd status page, set log level to debug.
Then do whatever it takes to get Avast to trigger.
After that download the log file from SABnzbd's status page and email it to
[email protected]
Also, can you ZIP the full content of your c:\program files (x86)\SABnzbd folder (and subfolders)
and send that to some filesharing site?
Is there a specific action being done by SABnzbd when Avast triggers?
It could be that one of the indexing sites that you use has a malicious redirection to another site
and feeds that to SABnzbd.
It could be that the RSS feed contains malicious pointers.
Given the way SABnzbd processes RSS links, it's extremely unlikely that such links can hurt your system.
If it's not an NZB file, SABnzbd just ignores it.