This indicates an attempt to access Microsoft Sharepoint from within the network. It does not indicate any exploit.
Microsoft Sharepoint is a browser-based collaboration and a document-management platform.
Risk
Medium
Popularity
High
Characteristic
Loss of productivity? Have disclosed vulnerability? Can bypass firewall policy? Contain built-in function for other purposes? Can communicate in clear text or via proxy? Can support file transfer? Can be misused? Can tunnel other apps?