iolo Antivirus has optional heuristic features to catch brand new viruses, based on behaviors and coding patterns that infections commonly use.Heuristic analysis
is the ability of an anti-virus program to detect new viruses before the vendor can get samples and update the program's definitions for detection. Heuristics uses non-specific detection methods to find new or unknown malware which allows the anti-virus to detect and stop if before doing any harm to your system. The techniques involves inspecting the code in a file to see if it contains virus-like characteristics. If the number of these characteristics/instructions exceeds a pre-defined threshold, the file is flagged as a possible virus
to using heuristics is that it is not as reliable as signatures-based detection (blacklisting) and there is always a potential risk
for a "False Positive
" when the heuristic analysis flags a file as suspicious
that contains no malware. Reducing the detection sensitivity will minimize the risk but then that increases the possibility for new malware to infect your system.
Allow your firewall to give you access to jotti or virustotal.com
so you can get a second opinion.