Moch, who played from 2007-10 with the Wolf Pack, was promoted from the Cardinals' practice squad on Monday. He was signed to the Cardinals' practice squad three weeks ago after getting released by the Cincinnati Bengals.
The 25-year-old Moch had 30 sacks in his Wolf Pack career (second in school history behind Jorge Cordova's 31) and a school-record 63 tackles for a loss.
Moch as drafted by the Bengals in the third round in 2011 and played just one game in his two seasons in Cincinnati. He broke his foot in the Bengals first preseason game in 2011 and missed the entire season. Last year he was suspended for the first four games because he used a banned substance and then played in just one game the rest of the year because he battled migraine problems.
The 6-foot-2, 255-pound Moch is back home in Arizona after graduating from Hamilton High in Chandler in 2006. The Cardinals will likely use him at outside linebacker after putting outside linebackers Lorenzo Alexander and Sam Achu on season-ending injured reserve on Monday.