Correction to VBSpam results

Posted by   Virus Bulletin on   Nov 27, 2012

Spamhaus and SURBL results re-evaluated.

The most recent VBSpam results incorrectly stated that SURBL failed to detect a blacklisted URL in any of the emails in the Wombat feed of phishing emails; the performance of Spamhaus on the feed was also affected.

We have since discovered that a technical glitch on our side meant that none of the domains found in the emails in the Wombat feed were scanned against the SURBL domain-based blacklist, which consequently was reported not to have 'blocked' any of the emails in this feed. While it is impossible to get accurate results from checking the domains several weeks after the emails were sent, we have reason to assume that a significant portion of the emails in this feed contained at least one blacklisted domain.

The same glitch affected another participating domain-based blacklist, the Spamhaus DBL, whose performance contributes to the Spamhaus ZEN+DBL results. Thus, the performance of this solution on the Wombat feed was in fact better than the 47% catch rate reported.

The issues did not affect the performance of either blacklist on other feeds in the test, nor did it affect any of the other participating products. We offer our apologies to both SURBL and Spamhaus.

Posted on 27 November 2012 by Martijn Grooten

twitter.png
fb.png
linkedin.png
googleplus.png
reddit.png

 

Latest posts:

Where are all the ‘A’s in APT?

In a guest blog post by VB2018 gold partner Kaspersky Lab, Costin Raiu, Director of the company's Global Research and Analysis Team, looks critically at the 'A' in APT.

VB2018 preview: commercial spyware and its use by governments

Today, we preview three VB2018 presentations that look at threats against civil society in general and the use of commercial spyware by governments for this purpose in particular.

VB2018 preview: Wipers in the wild

Today we preview the VB2018 paper by Saher Naumaan (BAE Systems Applied Intelligence) on the use of wipers in APT attacks.

VB2018 preview: IoT botnets

The VB2018 programme is packed with a wide range of security topics featuring speakers from all around the world. Today we preview two of them: one by Qihoo 360 researchers on tracking variants of Mirai and one by researchers from Bitdefender on the…

VB2018: last-minute talks announced

We are excited to announce the final additions to the VB2018 programme in the form of 10 'last-minute' papers covering up-to-the-minute research and hot topics and two more invited talks.

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.