[Exim] W32/Sircam worm

Does anyone know how the SMTP engine in SirCam actually works? Does it simply
try to find an A record for the target domain, or is it smart enough to do MX
lookups? Or does it do something like assume a machine called "mail" in the
default domain is a smarthost?

    Alan Phillips
    Computer Centre
    Lancaster University
    Lancaster

    (+44) (0)1524 593672