Ani 0day

77D53A5A 8BFF MOV EDI,EDI
77D53A5C 55 PUSH EBP
77D53A5D 8BEC MOV EBP,ESP
77D53A5F 8B45 08 MOV EAX,DWORD PTR SS:[EBP+8]
77D53A62 8B55 10 MOV EDX,DWORD PTR SS:[EBP+10] ; 可以控制的长度
77D53A65 56 PUSH ESI
77D53A66 8B70 04 MOV ESI,DWORD PTR DS:[EAX+4]
77D53A69 8D0C16 LEA ECX,DWORD PTR DS:[ESI+EDX]
77D53A6C 3BCE CMP ECX,ESI
77D53A6E 72 28 JB SHORT USER32.77D53A98
77D53A70 3BCA CMP ECX,EDX
77D53A72 72 24 JB SHORT USER32.77D53A98
77D53A74 3B48 08 CMP ECX,DWORD PTR DS:[EAX+8]
77D53A77 77 1F JA SHORT USER32.77D53A98
77D53A79 53 PUSH EBX
77D53A7A 57 PUSH EDI
77D53A7B 8B7D 0C MOV EDI,DWORD PTR SS:[EBP+C] ; 目标buf [ebp+3c]
77D53A7E 8BCA MOV ECX,EDX ; 控制长度
77D53A80 8BD9 MOV EBX,ECX
77D53A82 C1E9 02 SHR ECX,2
77D53A85 F3:A5 REP MOVS DWORD PTR ES:[EDI],DWORD PTR DS:[ESI] ; 覆盖


77D53A7B 8B7D 0C MOV EDI,DWORD PTR SS:[EBP+C] ; 目标buf [ebp+3c]
77D53A7E 8BCA MOV ECX,EDX ; 控制长度
77D53A80 8BD9 MOV EBX,ECX
77D53A82 C1E9 02 SHR ECX,2
77D53A85 F3:A5 REP MOVS DWORD PTR ES:[EDI],DWORD PTR DS:[ESI] ; 覆盖