Ahnlab, Inc.

Cha Sung Lim

Ju Seok Lee

An apparatus for detecting a malicious file, includes a program driving unit configured to output an execution address of a command executed by driving a program corresponding to a non-executable file; and an address storage unit configured to store normal address range information in accordance with the driving of the program. Further, the apparatus includes a maliciousness determination unit configured to determine whether the non-executable file is malicious depending on whether the execution address is not within the normal address range information.

Apparatus and method for detecting malicious files

An apparatus for detecting malicious shell codes using a debugging event includes an alert setting unit configured to set a mother program to run a non-executable file to trigger the debugging event when a mother process created by the mother program tries to execute a code with no execution attribute; and an information storage unit configured to store information on an address range in which modules to be used by the mother process are loaded in a memory. Further, the apparatus includes a malicious code determination unit configured to determine whether the non-executable file is malicious using the information on the address range when there occurs the debugging event.

Method and apparatus for detecting malicious shell codes using debugging events

An apparatus for inspecting a non-PE file includes a data loading unit configured to load candidate malicious address information related to a malicious code of the non-PE file; and a program link unit configured to acquire normal address range information of a module being loaded on a memory when an application program adapted for the non-PE file is executed and set up a candidate malicious address corresponding to the candidate malicious address information to be a breakpoint of the application program. Further, the apparatus includes a malicious code determination unit configured to determine whether a next execution address is within the normal address range information when there occurs an event derived from the breakpoint.

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Gyeonggi-do, South Korea

Cha Sung Lim