UPDATE: 1/25/13, 1:35 p.m. EST. Compuware has rejected Elliott’s $2.3 billion takeover bid.

Elliott Management—the hedge fund probably best known in legal circles for its sovereign debt battles with Argentina—has mounted a $2.3 billion bid to take control of business software maker Compuware. The target company has retained Skadden, Arps, Slate, Meagher & Flom to help evaluate the offer, according to two sources familiar with the matter.