公开(公告)号：US20220292191A1

公开(公告)日：2022-09-15

申请号：US17636444

申请日：2019-08-29

Applicant: NEC Corporation

Inventor： Takayuki SASAKI ,  Yusuke SHIMADA

IPC: G06F21/55 ,  G06F21/54

Abstract: In a backdoor inspection apparatus, a static analysis unit executes static analysis processing for a backdoor on each code block included in target software to be inspected to thereby specify a first code block and a condition, the first code possibly being the backdoor and the first code block being executed under the condition. Next, the static analysis unit outputs the target software to which first information indicating the specified first code block is added and second information indicating the specified condition to a dynamic analysis unit. The dynamic analysis unit controls dynamic analysis processing for the backdoor performed on the target software to which the first information is added based on the first information and the second information.

公开(公告)号：US20220269490A1

公开(公告)日：2022-08-25

申请号：US17631044

申请日：2019-08-08

Applicant: NEC CORPORATION

Inventor： Yusuke SHIMADA ,  Takayuki SASAKI

IPC: G06F8/30 ,  G06F40/205

Abstract: A feature estimating device includes a parser identifying means for identifying a parser, the parser being contained in software, for parsing user input and executing a relevant command, a dividing means for extracting commands form a character string in the parser and clustering control flows connecting with the extracted commands as starting points to divide a code of the software for each feature, and a feature estimating means for estimating, based on a characteristic part of each divided code, a feature for each divided code.