Analysis and detection of metamorphic viruses

PhD thesis, University of Southern California, This method has been prototyped and evaluated on real world malicious bot software and benign Windows programs. There is a drawback of this approach as it is required by the virus engine itself so virus write cannot obfuscate this area.

Transform unit not only transforms own code but also the code of target file, where it sets some entry point to virus main routine. Felix Wu, and Frederic T. To show the method efficiency, experimental samples must be significantly Figure 1.

Virus Bulletin, June Crandall, Zhendong Su, S.

The false positive rates are approximately. Implementing malware with virtual machines.

Most of time it is being used with string searching for example it looks for specific hexadecimal string from within the infected file. This is also some sort of prevention from reverse engineering the virus. Modeling Software with Finite State Machines: Once their model is fully trained it can be used to compute a log of likelihood of each virus variants by scanning multiple files.

Virus Protection for Win- dows. Due to their functionality they provide a very different approach to describe sequence of variations.

Polymorphic viruses were really challenging to detect and remove from system, but it was just a matter of time Researchers tried to build solutions against polymorphic viruses. Most of virus logic resides here.

Or multiple layers of encryption. Regswap is performing this type of substitution [14].

This method combines static analysis and data-mining techniques. As due to this process code of virus code expand or shrink based on number of instructions increased or decreased from the parent code. ANALYSIS AND DETECTION OF METAMORPHIC COMPUTER VIRUSES A Writing Project Presented to The Faculty of the Department of Computer Science San Jose State University.

Metamorphic Virus: Analysis and Detection Evgenios Konstantinou Supervisor: Dr. Stephen Wolthusen in-depth analysis of metamorphic viruses is presented, along with the tech- { the analysis and detection of metamorphic viruses. Viruses InFred Cohen, the pioneer researcher in computer viruses, de ned.

Analysis and Detection Metamorphic Viruses Chapter 1 Introduction Motivation Metamorphic Viruses are very special type of viruses which have ability to reconstruct into entirely new offspring which is completely different than the parent; Main object to use these techniques to rebuild itself is to avoid detection by Antivirus Software.

Metamorphic Viruses are very special type of viruses which have ability to reconstruct into entirely new offspring which is completely different than the parent; Main object to use these techniques to rebuild itself is to avoid detection by Antivirus Software.

Metamorphic viruses transform their code as they propagate, thus evading detection by static signature-based virus scanners, while keeping their functionality.

They use code obfuscation techniques to challenge deeper static analysis and can also beat dynamic analyzers, such as emulators, by altering.

analysis methods include registry monitor, API call monitor, file monitor, process monitor, behavior monitor and network metamorphic viruses are presented with empirically determined avoiding detection. Polymorphic viruses can mutate their decyptors to a large number of different instances that take.

Analysis and detection of metamorphic viruses