Binary merging device, method, and computer program
According to various example embodiments, a first binary, i.e., an original binary of an application, and a second binary to be added to the application may be merged in a binary form without having to modify a source code.
1. A binary merging method performed by a binary merging device, the binary merging device comprising a memory storing a first binary, and a controller, wherein the binary merging method comprises:
generating, by the controller, a second binary to be injected into the first binary; and
generating, by the controller, a final binary in which the first binary and the second binary are merged,
wherein the final binary is implemented to cause execution of the second binary using a second programming interface, replacement of the second programming interface with a first programming interface, and execution of the first binary using a first programming interface,
the first programming interface comprises a reference relationship between at least one first function and first external files called by the at least one first function based on a first address table,
the first address table comprises a first address value of a first area where the at least one first function included in a first source file that is a source of the first binary is defined;
the second programming interface comprises a reference relationship between at least one second function and second external files called by the at least one second function based on a second address table, and
the second address table comprises a second address value of a second area where the at least one second function included in a second source file that is a source of the second binary is defined.
2. The binary merging method of claim 1 , wherein the final binary is implemented to cause:
sequential extraction of a function name of the at least one first function included in the first programming interface and the first address value in which the at least one first function is defined;
individual comparison of whether the extracted function name and the extracted address value are included in the second programming interface, and when result of the individual comparison indicate that the second programming interface is not completely the same as the first programming interface, replacement of the second programming interface with the first programming interface.
3. The binary merging method of claim 1 , further comprising:
obfuscating, by the controller, the first binary,
wherein the second binary comprises a decoding function for decoding the obfuscated first binary.
4. A binary merging device comprising:
a memory having computer readable instructions stored thereon; and
at least one processor configured to execute the computer readable instructions to,
generate a second binary to be injected into a first binary,
generate a final binary in which the first binary and the second binary are merged,
generate a first programming interface which comprises a reference relationship between at least one first function and first external files called by the at least one first functions based on a first address table, and
generate a second programming interface which comprises a reference relationship between at least one second function and second external files called by the at least one second function based on a second address table,
wherein the final binary is implemented to cause execution of the second binary using the second programming interface, replacement of the second programming interface with the first programming interface, and execution of the first binary using the first programming interface,
the first address table comprises a first address value of a first area where the at least one first function included in a first source file that is a source of the first binary is defined, and
the second address table comprises a second address value of a second area where the at least one second function included in a second source file that is a source of the second binary is defined.
5. The binary merging device of claim 4 , wherein the final binary is implemented to cause:
sequential extraction of a function name of the first function included in the first programming interface and the first address value in which the first function is defined;
individual comparison of whether the extracted function name and the extracted address value are included in the second programming interface, and
replace the second programming interface with the first programming interface when results of the comparison indicate that the second programming interface is not completely the same as the first programming interface.
6. The binary merging device of claim 4 , wherein the at least one processor is further configured to obfuscate the first binary,
wherein the second binary comprises a decoding function for decoding the obfuscated first binary.
7. A non-transitory computer-readable medium storing computer-readable instructions, which when executed by at least one processor, causes the at least one processor to perform the method of claim 1 .