In the process of doing forensic audit (e.g. detection of billing/invoicing fraud) an accountant tends to look at things like:
Duplicate vendors
Duplicate bills
Dubious bills with large amount given to consulting professionals with unclear value addition
Vendors with unusually large volume of money outgoing
Bills processed at certain covenient times like financial year ending
Is there any software in the market which will work with existing accounting and erp system databases like SAP, Tally, Oracle etc. and detect such transactions?