On September 15, 2014, Symantec issued a SONAR release via Live Update definitions, which erroneously detected some low prevalence files as malicious. The false positive was reported as a SONAR.SuspLaunch detection.
Symantec discovered the issue and had a roll back release available to the field within forty five minutes. But unfortunately some customers were affected by the issue. All customers with current SONAR definitions will not be affected by the issue. The problem has been corrected.
Symantec is currently addressing the internal factors that caused the problem and will make the proper changes to ensure we do not repeat this issue.