The Advanced Threat Scan Engine (ATSE) uses a combination of pattern-based scanning and heuristic scanning to detect document exploits and other threats used in targeted attacks.
Major features include:
Detection of zero-day threats
Detection of embedded exploit code
Detection rules for known vulnerabilities
Enhanced parsers for handling file deformities
Important:
Because ATSE identifies both known and unknown advanced threats, enabling ATSE may increase the possibility of legitimate files being flagged as malicious.