I don't how much time the AVAST guys take to add malwarrs to their definition. Submitted few samples a month ago. And it was confirmed that they were malicious but still no detection. The samples are detected by most antivirus including AVG. It will be helpful for everyone if AVAST can incorporate AVG Virus database. Also AVG sample submit portal do not work properly. For some files it returns an error message. AVAST should also have a similar portal where users can submit samples or URLs for analysis.