Managing SMS spoofing using SMPP protocol
View Patent ↗Systems and methods are disclosed for managing Short Messaging Service (SMS) spoofing using Short Messaging Peer-to-Peer (SMPP) protocol. An SMPP protocol communication includes an SMPP transmitter and an SMPP transceiver. The SMPP transmitter identifies or receives an SMS message for transmission to a destination. The SMPP transmitter identifies a source address for the SMS message, and determines whether the source address is authentic. If the source address is not authentic, then the SMPP transmitter inserts a validity indicator in an SMPP Packet Data Unit (PDU), along with the SMS message, that the source address is not authentic before transmitting the SMPP PDU to the SMPP transceiver. Upon receiving the SMPP PDU from the SMPP transmitter, the SMPP transceiver may determine whether or not to deliver the SMS message to the destination based on the validity indicator provided by the SMPP transmitter.
1. A system comprising:
a Short Message Peer-to-Peer (SMPP) transmitter operable to identify a Short Messaging Service (SMS) message, to identify a source address for the SMS message, and to determine whether the source address is authentic; and
if the determination is that the source address is not authentic, then the SMPP transmitter is further operable to insert a validity indicator in an SMPP Packet Data Unit (PDU) along with the SMS message that the source address is not authentic before transmitting the SMPP PDU to an SMPP transceiver.
2. The system of claim 1 wherein:
if the determination is that the source address is authentic, then the SMPP transmitter is further operable to insert a validity indicator in the SMPP PDU that the source address is authentic before transmitting the SMPP PDU to the SMPP transceiver.
3. The system of claim 1 wherein:
if the determination is that the source address is not authentic, then the SMPP transmitter is further operable to determine whether the source address is suspected of being fake; and
if the determination is that the source address is suspected of being fake, then the SMPP transmitter is further operable to insert a validity indicator in the SMPP PDU that the source address is suspected of being fake before transmitting the SMPP PDU to the SMPP transceiver.
4. The system of claim 3 wherein:
if the determination is that the source address is not suspected of being fake, then the SMPP transmitter is further operable to insert a validity indicator in the SMPP PDU that the source address is not suspected of being fake before transmitting the SMPP PDU to the SMPP transceiver.
5. The system of claim 1 wherein:
if the determination is that the source address is not authentic, then the SMPP transmitter is further operable to reject the SMS message.
6. The system of claim 1 wherein:
the SMPP transmitter is further operable to insert a message type in an “esm_class” field of the SMPP PDU to indicate that the source address is not authentic.
7. The system of claim 1 further comprising:
the SMPP transceiver operable to receive the SMPP PDU from the SMPP transmitter that includes the SMS message, and to parse the SMPP PDU to identify the validity indicator inserted by the SMPP transmitter; and
if the validity indicator in the SMPP PDU indicates that the source address for the SMS message is not authentic, then the SMPP transceiver is further operable to determine whether to deliver the SMS message to a destination.
8. The system of claim 7 wherein:
the SMPP transceiver is further operable to process at least one of an “esm_class” field, a “source_addr” field, a “source_addr_ton” field, and a “source_subaddress” in the SMPP PDU to identify the validity indicator.
9. A method comprising:
identifying a Short Messaging Service (SMS) message within a Short Message Peer-to-Peer (SMPP) transmitter;
identifying a source address for the SMS message in the SMPP transmitter;
determining whether the source address is authentic in the SMPP transmitter; and
if the determination is that the source address is not authentic, then:
inserting a validity indicator in an SMPP Packet Data Unit (PDU) along with the SMS message that the source address is not authentic before transmitting the SMPP PDU to an SMPP transceiver.
10. The method of claim 9 further comprising:
if the determination is that the source address is authentic, then:
inserting a validity indicator in the SMPP PDU that the source address is authentic before transmitting the SMPP PDU to the SMPP transceiver.
11. The method of claim 9 further comprising:
if the determination is that the source address is not authentic, then determining whether the source address is suspected of being fake in the SMPP transmitter; and
if the determination is that the source address is suspected of being fake, then:
inserting a validity indicator in the SMPP PDU that the source address is suspected of being fake before transmitting the SMPP PDU to the SMPP transceiver.
12. The method of claim 11 further comprising:
if the determination is that the source address is not suspected of being fake, then inserting a validity indicator in the SMPP PDU that the source address is not suspected of being fake before transmitting the SMPP PDU to the SMPP transceiver.
13. The method of claim 9 further comprising:
if the determination is that the source address is not authentic, then rejecting the SMS message in the SMPP transmitter.
14. The method of claim 9 wherein inserting a validity indicator in the SMPP PDU comprises:
inserting a message type in an “esm_class” field of the SMPP PDU to indicate that the source address is not authentic.
15. The method of claim 9 further comprising:
receiving the SMPP PDU from the SMPP transmitter in the SMPP transceiver that includes the SMS message;
parsing the SMPP PDU in the SMPP transceiver to identify the validity indicator inserted by the SMPP transmitter; and
if the validity indicator in the SMPP PDU indicates that the source address for the SMS message is not authentic, then determining in the SMPP transceiver whether to deliver the SMS message to a destination.
16. The method of claim 15 wherein parsing the SMPP PDU to identify the validity indicator comprises:
parsing at least one of an “esm_class” field, a “source_addr” field, a “source_addr_ton” field, and a “source_subaddress” in the SMPP PDU to identify the validity indicator.
17. A system comprising:
a Short Message Peer-to-Peer (SMPP) transceiver operable to receive an SMPP Packet Data Unit (PDU) from an SMPP transmitter that includes a Short Messaging Service (SMS) message, and to parse the SMPP PDU to identify a validity indicator inserted by the SMPP transmitter, wherein the validity indicator indicates whether a source address for the SMS message is authentic;
if the validity indicator in the SMPP PDU indicates that the source address for the SMS message is not authentic, then the SMPP transceiver is further operable to determine whether to deliver the SMS message to a destination.
18. The system of claim 17 wherein:
the SMPP transceiver is further operable to process a white list and a black list of trusted source addresses;
if the source address is included in the white list, then the SMPP transceiver is further operable to deliver the SMS message to the destination; and
if the source address is included in the black list, then the SMPP transceiver is further operable to reject the SMS message.
19. The system of claim 17 wherein:
the SMPP transceiver is further operable to parse a “system_id” field or a “system_type” field of the SMPP PDU to identify a transmitter type for the SMS message, and to process criteria for the transmitter type to determine whether to deliver the SMS message to the destination even though the source address is not authentic.
20. The system of claim 17 wherein:
the SMPP transceiver is further operable to parse a “dest_addr” field in the SMPP PDU to identify the destination of the SMS message, and to deliver the SMS message to the destination if the destination and the SMPP transceiver are part of the same network even though the source address is not authentic.