Maria Zhang, the Yahoo engineering executive sued for sexual harassment by one of her female employees, is striking back. Zhang, who helps lead Yahoo's crucial mobile efforts, filed a cross-complaint (embedded below) against her accuser, Nan Shi. It alleges defamation and claims Shi was trying to "extort" Yahoo.

Maria Zhang, a top executive at Yahoo, is being sued for sexual harassment, wrongful termination, and intentional infliction of emotional distress. The complaint was filed today by Nan Shi, an engineer supervised by Zhang, and names Yahoo as a defendant.