The agent can be categorized into two types; one is known as an intelligent agent and the second is malicious agent, called computer viruses. These types of agents have some common characteristics; both are intelligent by nature and both have the properties reproduction and transfer from one host

Abstract In this paper, a competitive software market that includes horizontal and quality differentiation, as well as a negative network effect driven by the presence of malicious agents, is modeled. Software products with larger installed bases, and therefore more potential computers to attack

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Malicious behaviors and cooperation have been well studied separately. However, rare systematic study has been conducted on the combination of them: malicious cooperation. In this paper, a general quantitative utility function of malicious cooperation is firstly formulated in a congestion game

agent occurs. This paper proposes situations involving a malicious recommender agent col-luding with the exploit of past reputation from a merchant. Based on the experimental results obtained from the simulation of this original situation leads to a interesting comparative of four reputation algorithms

problem (a) have been developed. The second problem (b) seems to be much harder: It is the general belief that computation privacy for mobile code cannot be provided without tamper resistant hardware. Furthermore it is doubted that an agent can keep a secret (e.g., a secret key to generate digital

Abstract-Given a network of interconnected nodes, each with its own value (such as a measurement, position, vote, or other data), we develop a distributed strategy that enables some or all of the nodes to calculate any arbitrary function of the node values, despite the actions of malicious nodes

agent-based aggregation schemes in networks with

. In this paper, an approach to partially solve one of the most difficult aspects of security of mobile agents systems is presented, the problem of malicious hosts. This problem consists in the possibility of attacks against a mobile agent by the party that maintains an agent system node, a host

In this paper, we study coordinated attacks launched by multiple malicious agents and the problem of detecting ma-licious groups of attackers. The paper proposes a formal method and an algorithm for detecting action interference between users. It has to be pointed out that some members of a