Is this a brown marinated stinkbug?
It sure looks like the Brown Marmorated Stink Bug. (BMSB). Note the striped legs, antennae, and smooth "shoulders." Here's more information: https://extension.oregonstate.edu/brown-marmorated-stink-bug
The trick is to be able to identify them early. Take a look at this OSU publication, which shows what the BMSB looks like from eggs, through juvenile (nymph) stages, to adult: https://catalog.extension.oregonstate.edu/sites/catalog/files/project/pdf/em9054_0.pdf
If you recognize the eggs and the nymphs and destroy them it will help to keep the population down. According to OSU: "Currently, monitoring and correct identification are valuable tools in assessing infestations. Excluding the pest from agricultural hosts provides the best pest management tool, so far. Biological control looks promising in the future, but more research is needed to evaluate its impact on BMSB populations."
I consulted with our bug ID expert and he confirmed - Yes! This is a BMSB.
"Yes, that is an adult brown marmorated stink bug. One of the easiest ID characteristics to see in a photo is the white banding at the joints of antennae near their tips. Here is a link that shows characteristics of BMSBs that distinguish them from other superficially similar-looking stink bugs....