drozer allows you to assume the role of an Android app, and to interact with other apps, through Android’s Inter-Process Communication (IPC) mechanism, and the underlying operating system.
drozer also helps to you to remotely exploit an Android device, by building malicious files or web pages that exploit known vulnerabilities to install drozer as a remote administration tool. Depending on the permissions granted to the vulnerable app, drozer can install a full agent, inject a limited agent into the process or spawn a reverse shell.
drozer is open source software, released under a BSD license and maintained by MWR InfoSecurity.