AVSynMgr.exe
(McAfee Network Associates)
McAfee VirusScan Synchronization Manager. We are not yet sure about the role of this task but we believe it to be to synchronize the workstations virus definitions with those collected from McAfees site by the central fileserver on network versions of McAfee VirusScan.
Recommendation :
Since we are not sure of this tasks role, our recommendation can only be to leave it alone.