Detection of a Spear-Phishing Phone Call

• US 20180020092A1
• Filed: 07/13/2016
• Published: 01/18/2018
• Est. Priority Date: 07/13/2016
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bender, Michael, Childress, Rhonda L., Kumhyr, David B., Spisak, Michael J.
• Granted Patent: US 10,244,109 B2
• Time in Patent Office: Days
• CPC Class Codes: G10L 17/26 Recognition of special voice characteristics, e.g. for use in lie detectors; Recognition of animal voices
• CPC Class Codes: G10L 2015/088 Word spotting
• CPC Class Codes: H04L 63/1408 by monitoring network traffic monitoring network traffic per se H04L43/00
• CPC Class Codes: H04L 63/1441 Countermeasures against malicious traffic countermeasures against attacks on cryptographic mechanisms H04L9/002
• CPC Class Codes: H04L 65/1079 of unsolicited session attempts, e.g. SPIT
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04M 2201/12 Counting circuits
• CPC Class Codes: H04M 2201/40 using speech recognition speech recognition per se G10L15/00
• CPC Class Codes: H04M 2201/41 using speaker recognition speaker recognition per se G10L17/00
• CPC Class Codes: H04M 2203/6027 Fraud preventions
• CPC Class Codes: H04M 3/42042 Notifying the called party of information on the calling party details within substation equipment H04M1/57, signalling details H04Q3/72
• CPC Class Codes: H04M 3/42059 Making use of the calling party identifier
• CPC Class Codes: H04M 3/436 Arrangements for screening incoming calls , i.e. evaluating the characteristics of a call before deciding whether to answer it based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; diversion H04M3/54

Abstract

A mechanism is provided for detection of a spear-phishing phone call. Responsive to an individual receiving a phone call, a determination is made as to whether the phone call has one or more identifiable traits from a set of identifiable traits that are identified as being associated with spear-phishing. Responsive to identifying that the phone call has one or more identifiable traits from the set of identifiable traits that are identified as being associated with spear-phishing, an associated weighted risk value for each of the identified traits associated with the phone call is identified from the set of identifiable traits. A total risk value is calculated using each weighted risk value associated with each identified trait associated with the phone call. Responsive to the total risk value exceeding a predetermined risk value, the individual is notified of the total risk value to enable the individual to take an appropriate action based on the total risk value.

Claims

1. A method, in a data processing system, for detection of a spear-phishing phone call, the method comprising:

responsive to an individual receiving a phone call from a calling party, determining whether the phone call has one or more identifiable traits from a set of identifiable traits that are identified as being associated with spear-phishing, wherein the set of identifiable traits includes analysis of conversation being produced by the calling party following a known script;

responsive to identifying that the phone call has one or more identifiable traits from the set of identifiable traits that are identified as being associated with spear-phishing, identifying an associated weighted risk value for each of the identified traits associated with the phone call from the set of identifiable traits;

calculating a total risk value using each weighted risk value associated with each identified trait associated with the phone call; and

responsive to the total risk value exceeding a predetermined risk value, notifying the individual of the total risk value to enable the individual to take an appropriate action based on the total risk value.

2. The method of claim 1, wherein, as the phone call proceeds, the total risk value is recalculated as additional identifiable traits are identified.

3. The method of claim 1, wherein, responsive to the total risk value exceeding the predetermined risk value, adding at least one of a caller identifier associated with the phone call to a list of known caller identifiers associated with spear-phishing or a phone number associated with the phone call to a list of known phone numbers associated with spear-phishing.

4. The method of claim 1, wherein the phone call is a Voice over Internet Protocol (VoIP) phone call, a plain old telephone service (POTS) phone call, or a video phone call.

5. The method of claim 1, wherein the set of identifiable traits further includes a detection of a website being accessed during the phone conversation that requires personal information, anti-virus protection issuing a warning during the phone conversation, or remote access or control of the computer being requested or given to the caller during the phone conversation.

6. The method of claim 1, wherein the set of identifiable traits further includes an identification that the phone call originates from a blocked phone number, a private phone number, or otherwise unidentifiable phone number.

7. The method of claim 1, wherein the set of identifiable traits further includes a caller identifier of the phone call matching a known caller identifier associated with spear-phishing.

8. The method of claim 1, wherein the set of identifiable traits further includes a phone number of the phone call matching a known phone number associated with spear-phishing.

9. The method of claim 1, wherein the set of identifiable traits further includes voice analysis of the calling party being identified as a person known to be associated with spear-phishing.

10. The method of claim 1, wherein the set of identifiable traits further includes voice analysis of the calling party identifying a count of mispronounced words exceeding a predetermined number.

12. The method of claim 1, wherein the set of identifiable traits further includes the calling party requesting key words or phrases, and wherein the key words or phrases include a bank account number, a social security number, or a credit card number.

11. (canceled)

13. A computer program product comprising a computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device, causes the computing device to:

responsive to an individual receiving a phone call from a calling party, determine whether the phone call has one or more identifiable traits from a set of identifiable traits that are identified as being associated with spear-phishing, wherein the set of identifiable traits includes analysis of conversation being produced by the calling party following a known script;

responsive to identifying that the phone call has one or more identifiable traits from the set of identifiable traits that are identified as being associated with spear-phishing, identify an associated weighted risk value for each of the identified traits associated with the phone call from the set of identifiable traits;

calculate a total risk value using each weighted risk value associated with each identified trait associated with the phone call; and

responsive to the total risk value exceeding a predetermined risk value, notify the individual of the total risk value to enable the individual to take an appropriate action based on the total risk value.

14. The computer program product of claim 13, wherein, as the phone call proceeds, the computer readable program further causes the computing device to recalculate the total risk value as additional identifiable traits are identified.

15. The computer program product of claim 13, wherein the computer readable program further causes the computing device to:

responsive to the total risk value exceeding the predetermined risk value, add at least one of a caller identifier associated with the phone call to a list of known caller identifiers associated with spear-phishing or a phone number associated with the phone call to a list of known phone numbers associated with spear-phishing.

16. The computer program product of claim 13, wherein the phone call is a Voice over Internet Protocol (VoIP) phone call, a plain old telephone service (POTS) phone call, or a video phone call.

17. An apparatus comprising:

a processor; and

a memory coupled to the processor, wherein the memory comprises instructions which, when executed by the processor, cause the processor to;

responsive to an individual receiving a phone call from a calling party, determine whether the phone call has one or more identifiable traits from a set of identifiable traits that are identified as being associated with spear-phishing wherein the set of identifiable traits includes analysis of conversation being produced by the calling party following a known script;

responsive to identifying that the phone call has one or more identifiable traits from the set of identifiable traits that are identified as being associated with spear-phishing, identify an associated weighted risk value for each of the identified traits associated with the phone call from the set of identifiable traits;

calculate a total risk value using each weighted risk value associated with each identified trait associated with the phone call; and

responsive to the total risk value exceeding a predetermined risk value, notify the individual of the total risk value to enable the individual to take an appropriate action based on the total risk value.

18. The apparatus of claim 17, wherein, as the phone call proceeds, the instructions further cause the processor to recalculate the total risk value as additional identifiable traits are identified.

19. The apparatus of claim 17, wherein the instructions further cause the processor to:

responsive to the total risk value exceeding the predetermined risk value, add at least one of a caller identifier associated with the phone call to a list of known caller identifiers associated with spear-phishing or a phone number associated with the phone call to a list of known phone numbers associated with spear-phishing.

20. The apparatus of claim 17, wherein the phone call is a Voice over Internet Protocol (VoIP) phone call, a plain old telephone service (POTS) phone call, or a video phone call.