magna86 - Uninstall and cleanup complete. I can’t thank you enough for all your help.

I have been using MBAM (though not often enough) for several years. MCShield has now been added.

I get the impression that the Sirefef rootkit is a bigger problem than the associated Trojan; MBAM seemed to deal with the Trojan successfully, but the rootkit needed all the extra work.

Again, many, many thanks.