BotVoice.A is a Trojan that prevents users from working with the computer properly, as it does not allow the files with certain extensions from being run: BAT, COM, EXE and MP3 files, among others.

Additionally, it disables the Task Manager and the Windows Registry Editor.

BotVoice.A does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.

Technical details can be found at this Panda Software page.