7 September:
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 10.0; Trident/7.0; Sleipnir6/6.2.5; SleipnirSiteUpdates/6.2.5)
7 September, some hours later:
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 10.0; Trident/7.0; Sleipnir6/6.2.7; SleipnirSiteUpdates/6.2.7)
23 September:
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 10.0; Trident/7.0; Sleipnir6/6.2.8; SleipnirSiteUpdates/6.2.8)
I have no idea what this is. It requests pages with some-but-not-all supporting files. Always from what appears to be a human ISP in Japan (with Accept-Language headers to match). The rapidly changing UA suggests some confusion about what, exactly, is supposed to be getting updated.
I was going to give them 8000 bonus points for the name, but it turns out I'd confused Sleipnir (Odin's horse) with Mjølnir (Thor's hammer), so let's cut back to 3000. It's still got 8 legs and can run as fast on water as on land, so there is that.
