The main purpose of most spam e-mail messages distributed on Internet today is to entice recipients into visiting World Wide Web pages that are advertised through spam. In essence, e-mail spamming is a campaign that advertises URL addresses at a massive scale and at minimum cost for the advertisers and those advertised. Nevertheless, the characteristics of URL addresses and of web sites adverti...

With increasing security measures in network services, remote exploitation is getting harder. As a result, attackers concentrate on more reliable attack vectors like email: victims are infected using either malicious attachments or links leading to malicious websites. Therefore efficient filtering and blocking methods for spam messages are needed. Unfortunately, most spam filtering solutions pr...

............................................................................................................................. 3 INTRODUCTION: ..................................................................................................................... 3 PART ONE: THE PROGRESS OF SPAM ...................................................................................... 4 PART TWO: DEFIN...

S pam, the term used to describe unsolicited e-mail received from an unknown sender without expressed consent of the recipient [1], has become a major problem for communications through the Internet. Since the delivery of the fi rst spam message in 1978 [2], the volume of spam has grown tremendously. In January 2005, the percentage of all e-mails, worldwide, identifi ed as spam was estimated at...

This paper examines an approach to spam mitigation that rate limits incoming TCP/IP connections to an SMTP server based on the real-time detection of spam within the SMTP message exchange. Our approach is motivated by a desire to cause increased resource consumption at the spammer end of each SMTP connection, and to avoid the negative impact of falsepositives by eventually allowing all emails t...

As online social media applications continue to gain its popularity, concerns about the rapid proliferation of Web spam has grown in recent years. These applications allow spammers to submit links anonymously, diverting unsuspected users to spam Web sites. This paper presents a novel co-classification framework to simultaneously detect Web spam and spammers in social media Web sites based on th...

We present Active Spam Killer (ASK), a program that attempts to validate unknown senders before allowing delivery of their message. Validation occurs by means of a challenge reply sent to senders who are not yet known to the system. Messages are kept in a queue pending confirmation until the sender replies to the challenge. Further messages coming from confirmed senders are delivered immediatel...

We have traditionally viewed spam from the receiver’s point of view: mail servers assaulted by a barrage of spam from which we must pick out a handful of legitimate messages. In this paper we describe a system for better filtering spam by exploiting the vantage point of the spammer. By instantiating and monitoring botnet hosts in a controlled environment, we are able to monitor new spam as it i...

In recent years spam detection and dealing with spam in information retrieval systems is a difficult task. This article surveys the classification of various spam in the internet based on their properties. The impact of various spams in social networks, email, image, content and links is discussed and the technique applied to prevent the spam in various areas is listed. A detailed analyzes of c...

The spam has now become a significant security issue and a massive drain on financial resources. In this paper, a spam filter is introduced, which works at the server side. The proposed filter is a combination of antispam techniques. The integrated solution create a spam filtering system which is more robust and effective than each of the comprising techniques. The task of proposed filter is to...