ok heres what trend says
MANUAL REMOVAL INSTRUCTIONS
Click Start>Run, type Regedit then hit the Enter key.
In the left panel, double click the following:
HKEY_CURRENT_USER>Software>Microsoft
>Windows>CurrentVersion>Run
In the right panel, right-click and then delete this registry value:
LTM2 = %Windows%\Litmus\MSGSRV32.EXE
In the left panel, double click the following:
HKEY_USERS>.DEFAULT>Software>Microsoft
>Windows>CurrentVersion>Run
In the right panel, right-click and then delete this registry value:
LTM2 = %Windows%\Litmus\MSGSRV32.EXE
Reboot your computer.
Scan your system with Trend Micro antivirus and delete all files detected as BKDR_LITMUS.A. To do this Trend Micro customers must download the latest pattern file and scan their system. Other email users may use HouseCall, Trend Micro's free online virus scanner.
http://housecall.trendmicro.com