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Malware can be defined as any type of malicious code that has the potential to harm a computer or network. The volume of malware is growing faster every year and poses a serious global security threat. Consequently, malware detection has become a critical topic in computer security. Currently, signature-based detection is the most widespread method used in(More)
The presence of mobile devices has increased in our lives offering almost the same functionality as a personal computer. Android devices have appeared lately and, since then, the number of applications available for this operating system has increased exponentially. Google already has its Android Market where applications are offered and, as happens with(More)
The presence of mobile devices has increased in our lives offering almost the same functionality as a personal computer. Android devices have appeared lately and, since then, the number of applications available for this operating system have increased exponentially. Google already has its Android Market where applications are offered and, as happens with(More)
Malware is any malicious code that has the potential to harm any computer or network. The amount of malware is increasing faster every year and poses a serious security threat. Thus, malware detection is a critical topic in computer security. Currently, signature-based detection is the most extended method for detecting malware. Although this method is(More)
The use of mobile phones has increased in our lives because they offer nearly the same functionality as a personal computer. Besides, the number of applications available for Android-based mobile devices has increased. Google offers programmers the opportunity to upload and sell applications in the Android Market, but malware writers upload their malicious(More)
Malware is every malicious code that has the potential to harm any computer or network. The amount of malware is increasing faster every year and poses a serious security threat. Hence, malware detection has become a critical topic in computer security. Currently, signature-based detection is the most extended method within commercial antivirus. Although(More)
Malware is any computer software potentially harmful to both computers and networks. The amount of malware is growing every year and poses a serious global security threat. Signature-based detection is the most extended method in commercial antivirus software, however, it consistently fails to detect new malware. Supervised machine learning has been adopted(More)
Run-time packers are often used by malware-writers to obfuscate their code and hinder static analysis. The packer problem has been widely studied, and several solutions have been proposed in order to generically unpack protected binaries. Nevertheless, these solutions commonly rely on a number of assumptions that may not necessarily reflect the reality of(More)
Malware is any software designed to harm computers. Commercial anti-virus are based on signature scanning, which is a technique effective only when the malicious executables have been previously analysed and identified. Malware writers employ several techniques in order to hide their actual behaviour. Executable packing consists in encrypting or hiding the(More)
Spam has become a major issue in computer security because it is a channel for threats such as computer viruses, worms and phishing. More than 85% of received e-mails are spam. Historical approaches to combat these messages including simple techniques such as sender blacklisting or the use of email signatures, are no longer completely reliable. Currently,(More)