Hurst and Lee Bowyer do battle for a shot in the League One play-off final over a two-legged semi-final tomorrow evening and on Sunday.
Hurst says that Shrewsbury, least favourites to climb to the Championship despite comfortably finishing third in League One, will remember they are facing a side that finished 16 points worse off this season.
Town and Charlton have enjoyed 2-0 wins over each other in the league this season, with both wins coming away from home.
“I think they’ve changed slightly under Lee,” said Hurst, who admits he knows the team that will kick-off at The Valley.
“One thing that hasn’t is they have certainly got a set of attacking players – whether starting or off the bench – that will probably be the envy of many clubs at our level.
“They will have some moments in the game where they cause us problems.
“But at the same time I believe we can cause them problems. It’s right they’re ultimately a big club, but we’re playing a team of players in our league that we’ve come up against before, got the better of once and been beat once.
“We’re not playing Charlton as in how some of us remember a Premier League side or even Championship. We’ve got to have that in our mind. Not to get carried away with the name. It is a big club and it’ll be a big crowd.”
“That’s one thing we will have to handle. We did it well down there when it was the league.”
Charlton beat Town 2-0 at the Meadow last month.
Hurst added: “There was certainly nothing there to fear. We’re respectful of them, but we’ve not had a real hiding and it’s ‘oh no, we’re playing them again’.”
Hurst and his side, who returned to training yesterday, travel down to London today and will stay over ahead of the evening kick-off, with some light training or a walk before the first leg.
Goalline technology will be used in all play-off matches.