A method and a system for monitoring an advertisement presented within a mobile application, including: simulating a virtual user interacting with the mobile application, tracing in real-time executable code of the mobile application that processes an advertisement. Where this traced process of advertisement performs: negotiating advertisement display, communicating an advertisement, and displaying an advertisement. The system then directs the advertisement negotiation via a proxy server emulating a location of the virtual user. The system then detects within the process of advertisement an advertisement processed by the executable code. The system then records the advertisement as displayed, and parameters associated with the advertisement.