Yes it's accurate.
President Trump did sign an executive order banning the citizens of Iran, Syria, Libya, Iraq, Yemen, Sudan, Somalia from entering the US for 90 days. Here is a CNN article that gives the details
It's also true that Egypt, Saudi Arabia, Turkey are not on the list.
The full text of the executive order can be seen here.
Since Trump has not released his taxes, it's hard to know exactly what his financial dealings are, but it does appear he has some financial interests in those 3 countries. For more details read this article by the New York Daily News.
I must caution however that correlation however does not mean causation. It's hard to know why he picked some countries but not others.
I suspect the unresolved conflict of interests due to the vast Trump business empire will be a common talking point in the months and years to come...