heur.suspicious[at]63976331 ? malware?

CIS gave me a message that is was a virus:

heur.suspicious[at]63976331

Is it a virus?

Hello Zardan,

Thank you for posting this. We’ll check the file and get back to you when we reach a conclusion.

Regards,
FlorinG

I don’t know if it helps you but it was found in: “msmsgs.exe” under Windows\softwareDistribution\download.…\backup

Also found in c:\program\messenger

Hi,Zardan
This false-positive has been fixed. Please check in virus signature database 2554
Regards
Shaogang