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 TitleDate AddedCompany
whitepaper Emerging Trends in Fighting Spam26/03/08 Symantec
  Spam has been a serious problem for email administrators and users alike for more than five years, growing from one in six emails in 2002 to approximately three out of four emails today. This white paper focuses on the problems caused by image spam, as well as other spammer techniques for delivering content through existing spam-blocking defenses. The paper also discusses Symantec’s approach to solving the problem of image spam, botnets and other threats.  sponsored by
whitepaper OSD: An Online Web Spam Detection System2009-05-16 Association for Computing Machinery
  Web spam which refers to any deliberate actions bringing to selected web pages an unjustifiable favorable relevance or importance is one of the major obstacles for high quality information retrieval on the web. Most of the existing web spam detection methods are supervised that require a large and representative training set of web pages. Moreover, they often assume some global information such as a large web graph and snapshots of a large collection of web pages. They developed efficient online link spam and term spam detection methods using spamicity. This paper presents a demonstration of OSD, an Online Spam Detection system which can efficiently calculate a spamicity score online for any page on the web.

Tags: Security Administration, Intrusion - Tampering		   
whitepaper Detecting Image Spam Using Local Invariant Features and Pyramid Match Kernel2009-04-24 Association for Computing Machinery
  Image spam is a new obfuscating method which spammers invented to more effectively bypass conventional text based spam filters. This paper extracts local invariant features of images and runs a one-class SVM classifier which uses the pyramid match kernel as the kernel function to detect image spam. Experimental results demonstrate that their algorithm is effective for fighting image spam.

Tags: Intrusion - Tampering, Intrusion - Tampering		   
whitepaper Spamcraft: An Inside Look at Spam Campaign Orchestration2009-04-24 University of California
  This paper has presented a detailed study of spam campaign orchestration as observed in the wild. Their investigation was enabled by a long-term infiltration of the Storm botnet, comprising both passive probing and active manipulation of the botnet's C&C traffic. Their study includes over 800,000 spam templates, more than 3 million harvested email addresses, and target lists comprising more than 630 million email addresses from 94 different campaign types hosted over a period of 10 months. Their analysis confirms that today's spamming business operates at a frightening scale without requiring truly sophisticated mechanisms to conquer the hurdles put in place by the anti-spam industry. Thus, to the detriment of productivity worldwide, the filtering arms race continues.

Tags: Internet and Web, Intrusion - Tampering		   
whitepaper Linked Latent Dirichlet Allocation in Web Spam Filtering2009-04-21 Association for Computing Machinery
  Latent Dirichlet Allocation (LDA) is a fully generative statistical language model on the content and topics of a corpus of documents. This paper applies an extension of LDA for web spam classification. The inferred LDA model can be applied for classification as dimensionality reduction similarly to latent semantic indexing. They test linked LDA on the WEBSPAMUK2007 corpus. By using BayesNet classifier, in terms of the AUC of classification, they achieve 3% improvement over plain LDA with BayesNet, and 8% over the public link features with C4.5. The addition of this method to log-odds based combination of strong link and content baseline classifiers results in a 3% improvement in AUC. Their method even slightly improves over the best Web Spam Challenge 2008 result.

Tags: Security Administration, Intrusion - Tampering		   
whitepaper Web Spam Filtering in Internet Archives2009-04-21 Association for Computing Machinery
  While Web spam is targeted for the high commercial value of top-ranked search-engine results, Web archives observe quality deterioration and resource waste as a side effect. So far Web spam filtering technologies are rarely used by Web archivists but planned in the future as indicated in a survey with responses from more than 20 institutions worldwide. These archives typically operate on a modest level of budget that prohibits the operation of standalone Web spam filtering but collaborative efforts could lead to a high quality solution for them. This paper illustrates spam filtering needs, opportunities and blockers for Internet archives via analyzing several crawl snapshots and the difficulty of migrating filter models across different crawls.

Tags: Security Administration, Intrusion - Tampering		   
whitepaper Web Spam Challenge Proposal for Filtering in Archives2009-04-21 Association for Computing Machinery
  This paper proposes new tasks for a possible future Web Spam Challenge motivated by the needs of the archival community. The Web archival community consists of several relatively small institutions that operate independently and possibly over different Top Level Domains (TLDs). Each of them may have a large set of historic crawls. Efficient filtering would hence require enhanced use of the time series of domain snapshots and collaboration by transferring models across different TLDs. Corresponding Challenge tasks could hence include the distribution of crawl snapshot data for feature generation as well as classification of unlabeled new crawls of the same or even different TLDs.

Tags: Security Administration, Intrusion - Tampering		   
whitepaper Filtering SPAM in P2PSIP Communities With Web of Trust2009-04-17 Helsinki University of Technology
  Spam is a dominant problem on email systems today. One of the reasons is the lack of infrastructure for security and trust. As Voice over IP (VoIP) communication becomes increasingly popular, proliferation of spam calls is only a matter of time. As SIP identity scheme is practically similar to email, those share the same threats. They utilized Host Identity Protocol (HIP) to provide basic security, such as end-to-end encryption. To provide call filtering, however, other tools are needed. This paper suggests applying trust paths familiar from the PGP web of trust to prevent unwanted communication in P2PSIP communities. The goal is to provide trust visibility beyond the first hop without requiring people to openly share private data such as contact lists.

Tags: Intrusion - Tampering, Intrusion - Tampering		   
whitepaper Net of the Living Dead: Bots, Botnets and Zombies2009-04-16 Eset
  Organized crime long ago discovered the Internet's profit potential, and has succeeded not only in recruiting the necessary expertise to exploit that potential, but in capturing and subverting a significant quantity of innocent Internet-attached systems and, in the process, acquiring the owners of those systems as unwitting Although they are grouped under the name "Bot", these do not constitute a single class of malware like viruses or worms, though they are usually considered to belong to the general class of Trojans. Some bots have replicative mechanisms, so also meet the definition of a worm or mass mailer, whereas others rely for propagation on external mechanisms such as spamming.

Tags: Security Administration, Intrusion - Tampering		   
whitepaper The Spam-Ish Inquisition2009-04-16 Eset
  UCE is usually regarded as a subset of UBE, though it's a very considerable percentage of 'Spammy' email, and many simply use the term UCE interchangeably with 'Spam'. Bulk email such as newsletters and mailing lists don't usually count, since "Solicit" those communications by subscribing to the list. Unfortunately, there are many ways of finding email addresses: even avoiding publishing address anywhere doesn't stop from receiving spam.

Tags: Security Administration, Intrusion - Tampering		   
whitepaper Email Marketing Vs. SPAM: A 10-Round Smack-Down2009-04-09 Infusionsoft
  Whether they're a heavy email marketer or thinking about using email to market to prospects and customers, there are plenty of issues to consider. Top of the list is email deliverability: how many e-mails actually make it to the inbox. In a recent poll conducted by Infusionsoft, 58% of email marketers indicated they had no idea what their email delivery rates were. More disturbing of the responders that indicated they knew what their rate was, only 23% were using a delivery tracking tool to actually monitor and verify delivery rates. The rest were basing deliverability rates on 'Guessing', 'Prospect/ customer feedback', or 'Testing with their personal email address'. Yikes! Unfortunately, the challenge doesn't stop with deliverability.

Tags: Intrusion - Tampering