SIGNATURE GENERATION DEVICE, SIGNATURE GENERATION METHOD, AND SIGNATURE GENERATION PROGRAM

1 . A signature generation device comprising:

processing circuitry configured to:

generate a PoC code candidate group of respectively different code contents using a PoC code;

respectively execute the PoC code candidate group generated and acquire communication data regarding communication generated during execution; and

generate a signature using the communication data acquired.

2 . The signature generation device according to claim 1 , wherein the processing circuitry is further configured to generate the PoC code candidate group by rewriting a conditional statement included in the PoC code.

3 . The signature generation device according to claim 1 , wherein the processing circuitry is further configured to execute the PoC code candidate group in a PoC code execution environment, observe the communication generated during the execution and acquire the communication data.

4 . The signature generation device according to claim 1 , wherein the processing circuitry is further configured to extract a characteristic character string or byte string from a request to a server included in the communication data, convert the character string or the byte string to a regular expression and generate the signature.

5 . The signature generation device according to claim 1 , wherein the processing circuitry is further configured to extract a characteristic character string or byte string from a request to a server included in the communication data, exclude an element included in a normal request from the character string or the byte string and generate the signature.

6 . A signature generation method executed by a signature generation device, the signature generation method comprising:

generating a PoC code candidate group of respectively different code contents using a PoC code;

respectively executing the PoC code candidate group generated and acquiring communication data regarding communication generated during execution; and

generating a signature using the communication data acquired.

7 . A non-transitory computer-readable recording medium storing therein a signature generation program that causes a computer to execute a process comprising:

generating a PoC code candidate group of respectively different code contents using a PoC code;

respectively executing the PoC code candidate group generated and acquiring communication data regarding communication generated during execution; and

generating a signature using the communication data acquired.