My b2evolution Version: 1.10.x

Not sure if this is the right forum for this question, or maybe it should have been posted to the antispam forum, but anyway, after upgrading to 1.10.2 I've suddenly been getting a LOT of 404's after attempted hits to login_pop.ihtml. Has anyone else been seeing this? I presume it's some kind of attempt to break in, but I'm not sure what they're going after. Anyone familiar?

jj.