Google’s Bouncer is a security feature for the Android Play store Market that is designed to protect the Android users to not to be a victim of any malicious Android malware app. Malware writers can fingerprint the most of the analysis services based on inferred information about their execution environment in order to develop more sophisticated and perfect evasion techniques. The research paper was conducted by the team of five researchers, Thanasis Petsas, Giannis Voyatzis, Elias Athanasopoulos, Michalis Polychronakis and Sotiris Ioannidis of the Institute of Computer Science from the Columbia University.
Source: https://thehackernews.com/2014/05/dynamic-analysis-tools-for-android-fail.html