Botnets have become one of the most serious security threats to the traditional Internet world. Although the mobile botnets have not yet caused major outbreaks worldwide in cellular network, but most of the traditional botnet experience can be transferred to mobile botnet on mobile devices, so mobile botnet may evolve faster since techniques are already explored. From the theoretical work of so...

BotNets are major threat of the current Internet. It is widespread malware and it arises commonly in today‟s cyber crime, which results in serious threats to our network. The compromised computer is infected by viruses, worms, or it has become a target of network attacks only when operational state of a network component is shifted from normal state to abnormal state. Thus, prevention and detec...

As if fueled by its own fire, curiosity and speculation regarding botnet sizes abounds. Among researchers, in the press, and in the classroom—the questions regarding the widespread effect of botnets seem never-ending: what are they? how many are there? what are they used for? Yet, time and time again, one lingering question remains: how big are today’s botnets? We hear widely diverging answers....

Botnets have evolved to incorporate peer-to-peer communication for the purpose of better hiding the administrative source of the botnet. Current botnet detection mechanisms identify network traffic patterns at strategic locations within a network such as the gateway. As detection techniques improve, botnet design will continue to evolve to evade detection; thus, it is advantageous to identify p...

Since the number of compromised computers, or botnet, continues to grow, the cyber security problem has become increasingly important and challenging to both academic researchers and industry practitioners. A respect to combat botnet propagation is to understand the attacker’s behaviors based on the whole operation of a system that can be modeled with population models used in epidemiological s...

Internet users have been attacked by widespread email viruses earlier, but now scenario has been changed. Now attackers are no more interested to just attract media attention by infecting a large number of computers on the network; in fact, their interest has been shifted to compromising and controlling the infected computers for their personal profits. This new attack trend brings the concept ...

Botnet is most widespread and occurs commonly in today‘s cyber attacks, resulting in serious threats to our network assets and organization’s properties. Botnets are collections of compromised computers (Bots) which are remotely controlled by its originator (BotMaster) under a common Command-andControl (C&C) infrastructure. They are used to distribute commands to the Bots for malicious activiti...

Bitcoin, a decentralized P2P currency in recent years has gained a tremendous attention due to its ability to create anonymous financial transactions. This leads to bitcoins being the choice of currency for users having privacy as a important issue. Bitcoin mining, a process resulting in the generation of new bitcoins, is performed by miner operators for reception of incentives in the form of B...

Botnets like Kelihos.B consist of infected computers that are used for malicious purposes. A large part of the Kelihos.B botnet was sinkholed and the bots in it send all their requests to controlled servers. All those requests are then stored in log files on the servers. These log files are used in this paper to find characteristics about this Kelihos.B botnet. Two types of analyses were conduc...