This is a primitive Trojan, written in DOS command language (i.e. the Trojan is a BAT file). It disconnects the mathematical coprocessor. As the result the computer starts to run extremely slowly. Windows 95 may lose functionality due to the action of the Trojan.
The Trojan adds a sector called [MathCoprocessor] to the system.ini file. It writes variables which disconnect the coprocessor to this file.