Malware
Maggie
According to DCSO, this malware is written as a Extended Stored Procedure for a MSSQL server.
Maggie is a Windows malware family.
Background
DCSO reports that this malware takes the form of an Extended Stored Procedure for an MSSQL server. The backdoor can brute-force credentials against other MSSQL servers, and when it succeeds against an admin login, it plants a dedicated hardcoded backdoor account.
Source: Malpedia (Fraunhofer FKIE).