Look what I found while looking up something else:
Mozilla/5.0 (Linux; U; Android 2.2; fr-fr; Desire_A8181 Build/FRF91) App3leWebKit/53.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1
I am not the first person to find it, judging by the number of search-engine hits even after I convinced g### that it wasn't a typo. But it doesn't seem to have been mentioned here, so let's add it to the list.
Obviously the significant part is App3leWebKit/53.1 with displaced 3. That's the part that goes in your UA blacklist .
:: pause here for blacklist vs. whitelist argument ::
But what's equally interesting is that every single UA-- spanning the past 6 months, with isolated older examples-- is identical to the full string quoted at the beginning. Could swear I once read an SF story on this theme. Or was it a comic book?
[edited by: Ocean10000 at 10:34 pm (utc) on Aug 10, 2013] [edit reason] Fixed Typo - upon Request [/edit]