Having previously seen an ad containing hard core porn, to which the response was, Avast can’t be expected to check adverts they put on their apps! I am shocked to twice now seeing an ad which is clearly a scam (add was slightly different on each occasion).
Clearly if Avast is not prepared to take any responsibility for ensuring the validity/safety of their adverts it is imperative that everyone avoid loosing money or being embarrassed by NEVER clicking on any Avast app advert. >:(