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COMMUNICATIONS OF THE ACM 1973年第6期16卷 370-372页

作者： BELL, JR DIGITAL EQUIPMENT CORP MAYNARDMA 01754

The concept of “threaded code” is presented as an alternative to machine language code. Hardware and software realizations of it are given. In software it is realized as interpretive code not needing an interpreter.... 详细信息

关键词： compiled code interpreter machine code space tradeoff subroutine calls threaded code time tradeoff

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Java Archives Search Engine Using Byte code as Information Source

Java Archives Search Engine Using Byte Code as Information S...

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International Conference on Data and Software Engineering ICODSE

作者： Karnalim, Oscar Mandala, Rila Bandung Inst Technol Sch Elect Engn & Informat Bandung Indonesia

ISBN: (纸本)9781479979967

Information from computer programs can be extracted from its source code, external documentation, and compiled code. Although compiled code is an assured information source which is always exists in published computer programs, it is seldom used by the existing search engines since some reverse engineering tasks are needed. In this research, a search engine for Java archives that uses byte code (compiled code for Java Archive) as its information source is developed. It enables user to search within a collection of Java Archives without relying with source code and external documentation. Compared with Penta and FindJar [2][7], A novel term extraction process beyond the file and class name is proposed, which includes field name, method name, string literal used in program, program flow weighting, and method expansion. Exclusive tokenization, stopping, and stemming are also implemented to improve effectiveness. Based on evaluation, it has a fairly good effectiveness although it may vary based on terms stored on index. Its effectiveness is higher than FindJar main features reimplementation which indicates that detailed compiled code has positive influences in computer programs search engine. Efficiency depends on how many terms stored on index and how many process used at certain step.

关键词： search engine Java archive information extraction compiled code byte code

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Detecting Java compiled Malware using Machine Learning Techniques 20

Detecting Java Compiled Malware using Machine Learning Techn...

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20th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing (SYNASC)

作者： Balan, Gheorghe Popescu, Adrian Stefan Alexandru Ioan Cuza Univ Bitdefender Lab Fac Comp Sci Iasi Romania

ISBN: (纸本)9781728106250

Malicious software using Java Language in order to implement the attack evolved rapidly in the past years. Initially we were used to find malicious Applets and exploitation methods to escape the controlled environments and to gain access to victims. Nowadays, as a react to the security measurements implemented in browsers, it is common to distribute the malware through spear-phishing emails. This paper presents two methods to detect the Java malicious code. One method is using an unsupervised machine learning algorithm while the other is using the Perceptron algorithm in order to shape a detection model. Combining their capacities we obtained a very good solution to detect Java threats in a proactive manner and to make sure that the known malware variants are still detected. The detection is focused on the class files as a response to the Malware as a Service concept.

关键词： Machine learning feature extraction feature selection java malware compiled code hierarchical clustering

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Ibm :: 370 :: Pli :: Sc33-0025-2 Pliexlgic Apr73

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2016年

Ibm :: 370 :: Pli :: Sc33-0025-2 Pliexlgic Apr73 by published by

关键词： address apr73 code compiled code control control block control blocks data management dsa entry point error error handling library macro instruction module pliexlgic program program management save area sc33-0025-2 statement statement number storage

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Mitre :: Esd Technical Reports :: Esd-Tr-71-343 the Ecl Programming System Aug71

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2016年

[Auto Generated] SECTION I. INTRODUCTION 1 SECTION II. SYSTEM ORGANIZATION AND DESIGN PHILOSOPHY 4 SECTION III. SYSTEM FACILITIES 10 3. 1 Syntax Extension 10 3. 2 Storage Management 12 3. 3 Data Type Extensions 13 3.4 Compilation 15 3. 5 Errors and Interrupt Handling 17 3. 6 Control Structures: Paths and Multiprogramming 19 SECTION IV. SUMMARY 21 REFERENCES 22 Figure No. 1 Primary System Modules 5 2 Program Development in ECL 8 VI INTRODUCTION 1 ECL is a programming language system currently bei