The detection Exploit:W32/CVE-2013-1331 identifies files designed to target a known vulnerability in certain versions of the Microsoft Office program.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
The CVE-2013-1331 vulnerability in Microsoft Office 2003 and Microsoft Office for Mac 2011 involves improper parsing of PNG code. There have been reports of this vulnerability being used in limited, targeted attacks in the wild. The attacks use specially crafted Office documents, which reference malicious PNG files hosted on remote servers. If successfully exploited, the attacker may be able to perform remote code execution on the affected machine.
For more information on the CVE-2013-1331 vulnerability and the corresponding security update for it, please refer to: