While I don't claim to have the skills of any of the expert techs at Bleeping Computer, I have found that the infection reported from Combofix may have happened before the reported date of January 29th.
Working on a Windows 7 OS laptop (64 bit) and a Vista OS laptop (64 bit) and another Vista OS laptop (32bit) I have found the same infection on all 3 laptops recently, the only common denominator being running Combofix on all 3 systems with the resulted infection found by Eset Online Scanner "Win32/Toolbar.Widgi application". The number of instances report has been as low as 7 and as high as 11 with the reapeats of only the same infection reported.
The difference in the reported infection date was the Vista OS (64 bit) system which was run at least a month ago.
I could be wrong as to what infected it with the same reported infection on all 3 systems but that was the only program I can currently attribute it to.
If this is the wrong location to post this please (admins) move this to where it should be posted.
Edited by Orange Blossom, 05 March 2013 - 12:47 PM.
Moved to AV forum. ~ OB