tokens: Here is a command and control protocol fragment : Commands from C2 server parsing In total , the malicious APK handles 16 different commands : Command Endpoint Description 1 reqsmscal.php Send specified SMS message 2 reqsmscal.php Call specified number 3 reqsmscal.php Exfiltrate device info , such as phone model and OS version 4 reqsmscal.php Exfiltrate a list of all installed applications 5 reqsmscal.php Exfiltrate default browser history ( limited to a given date ) 6 reqsmscal.php Exfiltrate Chrome browser history ( limited to a given date ) 7 reqsmscal.php Exfiltrate memory card file structure 8 reqsmscal.php Record surrounding sound for 80 seconds 1 reqcalllog.php Exfiltrate all call logs 2 reqcalllog.php Exfiltrate all SMS messages 3 reqcalllog.php Upload specified file from the device to the C2 4 reqcalllog.php Download file from specified URL and save on device 5 reqcalllog.php Delete specified file 6,7,8 reqcalllog.php Commands not yet implemented 9 reqcalllog.php Take photo ( muted audio ) with rear camera , send to C2 10 reqcalllog.php Take photo ( muted audio ) with front camera , send to C2 All observed samples with Smali injections were signed by the same debug certificate ( 0x936eacbe07f201df ) .