Although there's a new trojan that saves phone conversations to SD cards, why on earth would any hacker want to listen through all those files? Sheer boredom?
According to the report, the malware drops a "configuration" file -- one that contains key information about the remote server and the parameters -- once it's installed on the victim’s device. It then records and stores phone conversations in AMR format on the consumer's SD card. Based on the configuration file, it's assumed that the trojan also has the ability to upload these conversations to a remote server maintained by the trojan's author.