its either leaking from the plug or the filter. Not much else would leak out like that.
i agree oem filter and 10w30 is what i use all year round.
to answer the ASE cert...all you have to do is pass a test. It does NOT make you a good tech. Even with Hyundai just because you are a certain level, does not mean too much. UNLESS you are Platinum certified then you are tested for three days...book stuff and diagnosing.