In Nazi Germany, what was the anti-regime counter-culture youth group called?

This was a loosely organized, semi-underground group, quite widespread throughout Germany, mainly consisting of 14-to-18 year old males. They evaded inclusion in the Hitler Jugend, and occasionally engaged in street battles against the HJ. They also aided deserters and draft-evaders in WW2. In 1944, Himmler ordered the Gestapo to go after them: as a result, at least thirteen were publicly hanged.