Botnets are collections of compromised computers which have come under the control of a malicious person or organisation via malicious software stored on the computers, and which can then be used to interfere with, misuse, or deny access to a wide range of Internet-based services. With the current trend towards increasing use of the Internet to support activities related to banking, commerce, h...

Botnets have become one of top threats to the Internet. Many detection methods have been developed to distinguish botnet behaviors from normal human behaviors. Future botnets, however, may incorporate the characteristics of human beings and weaken the existing detection techniques. In this work, we present a novel intelligent botnet, called the delay-tolerant botnet, that intentionally adds ran...

The Command and Control communication of a botnet is evolving into sophisticated covert communication. Techniques as encryption, steganography, and recently the use of social network websites as a proxy, impede conventional detection of botnet communication. In this paper we propose detection of covert communication by passive hostexternal analysis of causal relationships between traffic flows ...

Thenumbers of the botnet attacks areincreasing day by day and the detection of botnet spreading in the network has become very challenging. Bots are having specific characteristics incomparison of normal malware as they are controlled by the remote master server and usually don’t show their behavior like normal malware until they don’t receive any command from their master server. Most of time ...

Botnet phenomenon in smartphones is evolving with the proliferation in mobile phone technologies after leaving imperative impact on personal computers. It refers to the network of computers, laptops, mobile devices or tablets which is remotely controlled by the cybercriminals to initiate various distributed coordinated attacks including spam emails, ad-click fraud, Bitcoin mining, Distributed D...

Recently, botnets utilizing peer-to-peer style communication infrastructures have been discovered, requiring new approaches to detection and monitoring techniques. Current detection methods analyze network communication patterns, identifying systems that may have been recruited into the botnet. This paper presents a localized botnet communication model that enables a portion of compromised syst...