Models as Lego Builders: Assembling Malice from Benign Blocks via Semantic Blueprints. - Chenxi Li; Xianggan Liu; Dake Shen; Yaosong Du; Zhibo Yao; Hao Jiang; Linyi Jiang; Chengwei Cao; Jingzhe Zhang; RanYi Peng; Peiling Bai; Xiande Huang (CoRR, 2026)