Exploit/Certifigate.B is an app that potentially exploits the vulnerability of a certain kind of Remote Support Tool.
Indication of Infection
ny malicious apps which succeeded in exploiting this vulnerability can impersonate as an authenticated legitimate app and communicate with the Plugin which usually has higher privileges than normal apps, including injecting UI events and capturing device screen from remote server without user's knowledge.
Methods of Infection
This potentially malicious app requires that the user intentionally install it upon the device. As always, users should never install applications from unknown or un-trusted android market.