[Agent Smith](https://attack.mitre.org/software/S0440) is mobile malware that generates financial gain by replacing legitimate applications on devices with malicious versions that include fraudulent ads. As of July 2019 [Agent Smith](https://attack.mitre.org/software/S0440) had infected around 25 million devices, primarily targeting India though effects had been observed in other Asian countries as well as Saudi Arabia, the United Kingdom, and the United States.(Citation: CheckPoint Agent Smith)