The specs on that thing are hilarious -- it looks like someone was intentionally trolling photographers
Across the front ring: "[unintelligible] ZOOM LENS EF-S 28-135mm 1:2.5 L II USM" -- so many things wrong with that marking
Then on the focus window "HOMADE 55 5DM" (not sure what that's supposed to be) along with the Infinity symbol on the wrong end of the focus range, and a depth of scale guide from a wide prime lens.
And finally, on the bottom, next to the red L-version of "Ultrasonic" and a white! mount alignment dot, is an aperture ring!
I don't recognize the overall shape of the barrel; I don't think it's from Canon at all.