Strictly speaking this is an Artemis question so I've moved it to
Security Awareness / Malware Discussion / Artemis Discussion
What you're looking for is the location where the file with the Artemis detection is located. How to find it might be OS-dependent, so what's your operating system?
You might find where your Network Shares are from Speccy - a useful reporting and information tool. I don't have any, according to Speccy. Found in the Network section under 'Network Shares' -
Of course, there are plenty of other ways to find the location of this shared folder.
A network share is typically made accessible to other users by marking any folder or file as shared, or by changing the file system permissions or access rights in the properties of the folder. For example, a file or folder may be accessible only to one user (the owner), to system administrators, to a certain group of users to public, i.e. to all logged in users. The exact procedure varies by platform.
In operating system editions for homes and small offices, there may be a special pre-shared folder that is accessible to all users with a user account and password on the local computer. Network access to the pre-shared folder can be turned on. In the Windows XP Home Edition operating system, english version, the preshared folder is named Shared documents, typically with the path C:\Documents and Settings\All users\Shared documents. In Windows Vista and Windows 7, the pre-shared folder is named public documents, typically with the path C:\Users\Public\Public documents.
Lots more detail :
windows 7 64 bit
So, was it in one of the Public folders?
If not, you'll need to experiment with Network visibility settings to find the folder containing this file. Any folder can be designated as a Shared folder, so I can't say which one it is.
Here are some good Windows 7 tutorials about the Network Center :