I was in a similar situation. My first job out of college was a dud (I was literally being paid to sit around and do nothing). On the plus side, you get to be

I was in a similar situation. My first job out of college was a dud (I was literally being paid to sit around and do nothing). On the plus side, you get to be paid while searching for the job you really want. This means you can take your time to find the right job, and your current position (and salary) gives you a better negotiating position. I wouldn't worry about hiding your current position. The fact that you want a new job for more challenging work should be seen as a good thing by the right employer.