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Journal Article
Tracing Stored Program Counter to Detect Polymorphic Shellcode
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- Authors
- Dae Won Kim, Ik Kyun Kim, Jin Tae Oh, Jong Soo Jang
- Issue Date
- 2008-08
- Citation
- IEICE Transactions on Information and Systems, v.E91-D, no.8, pp.2192-2195
- ISSN
- 0916-8532
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Abstract
- The shellcode use of the polymorphic form has become active as the de facto method for avoiding signature based network security system. We present a new static analysis method for detecting the decryption routine of the polymorphic shellcode. This method traces the processes by which the decryption routine stores the current program counter in a stack, moves the value between registers and uses the value in order to make the address of the encrypted code accessible. Most of decryption routines have the feature which they use the program counter stored on a stack as the address for accessing the memory that the encrypted code is positioned. Copyright © 2008 The Institute of Electronics, Information and Communication Engineers.
- KSP Keywords
- Analysis method, Information and communication, Network security system, Polymorphic form, Program counter, static analysis