form3.frm definition, relationships, removal:

The form3.frm file is an essential part of a particular parasite and therefore is responsible for the pest's malicious activity. Exact purposes of form3.frm depend on the related parasite's type and carried payload. Some threats can use form3.frm to serve annoying pop-up advertisements or store certain configuration settings, while others need it to corrupt files, steal user confidential information or run a spreading routine. In any case, DO NOT open this file!
The form3.frm file is installed and used by Excessive Force. It is also related to other parasites such as Mantis (Shaban), Monk and Nirvana. These threats can use form3.frm for different purposes, as the file's functionality depends on a particular parasite it belongs to.
Sometimes a presence of form3.frm does not indicate that your computer is infected. It can be an essential system file or a file installed by harmless legitimate software and therefore may not pose any threat to your privacy and the system. Although such cases are quite rare, you should thoroughly examine form3.frm before completely deleting or leaving it in the system.