'Image Spam' and VoIP Scam Attacks on Rise
Meer over: 'Image Spam' and VoIP Scam Attacks on Rise|2006-07-16 00:16:02
So-called "image spam" is on the rise once again -- as clever hackers try to sneak by spam screening software that tests messages for spam based on keywords.After declining steadily throughout 2005 -- from about 12 percent ofall spam at the beginning of the year, down to about 5 percent inNovember -- the use of image spam jumped dramatically in December 2005,to 25 percent of all spam. It has remained at that level fairlyconsistently for the last six months, according to Postini, a messagingmanagement company based in San Carlos, Calif.To be sure, up-to-date spam filters, like the patented PTIN technology,can detect and block image spam based on other attributes of thesending computer, message envelope and headers.There are other, emerging threats too -- like VoIP spam scams.Scammers pretending to be banks e-mail people and ask them to dial atelephone number, then enter the personal information needed to gainaccess to their finances. These fake VoIP services are reducing thecosts associated with conducting such attacks, providing theperpetrators with a lower risk of discovery."Postini attributes this increase to spammerstesting the deliverability of image spam in early 2005 and realizingthat many older spam filters are helpless when messages contain text toanalyze, so the use of images helps get their spam delivered," saidPostini spokesperson Catherine Leahy. "Upon seeing the positiveresults, they converted much of their spam to image spam."These attacks are "highly sophisticated,targeted, transient and dynamic, thereby making it far more difficultto uncover and capture the perpetrators," according to Dr. JoseNazario, a senior security engineer and member of the Arbor SecurityEngineering & Response Team (ASERT) at Arbor Networks, a networksecurity leader for global business networks. News source: Tech News World Read full story...
http://feeds.feedburner.com/~r/neowin-main/~3/http%3A%2F%2Fwww.neowin.net%2Findex.php%3Fact%3Dview%26id%3D34122
Spam nog lucratief
Meer over: Spam nog lucratief|2006-07-14 20:27:05
Zelfs als maar 1 op de honderdduizend ontvangers reageert, is spam lonend.
http://www.planet.nl/planet/show/id=62967/contentid=732207/sc=70557c
Microsoft Strider Project to Stop Search Spam
Meer over: Microsoft Strider Project to Stop Search Spam|2006-07-14 17:52:48
Microsoft Research has embarked on a new project to automatically seek out search engine spam before it can be used to defraud advertisers on MSN, Yahoo and Google. Called Strider Search Defender, the tool combines two other projects from MSR: Strider Honey Monkey and URL Tracer.The effort is being headed up by researcher Yi-Min Wang and focuses on a major problem now plaguing the Web: blog spam. The basic premise of Strider Search Defender is that spammers utilize what Yi-Min calls "doorway pages" -- sites at reputable hosts and blog services. The doorway pages pull ads from a "target page" operated by the spammer.Instead of reading the actual content of a page to see if it could be classified as spam, Microsoft is taking a context-based approach that analyzes URL redirection. Because many Web sites will use redirection to serve up different pages to search engines and humans, this methodology could prove more effective.In addition, Yi-Min notes that large-scale spammers create hundreds or thousands of doorway pages the either redirect to or retrieve ads from a single domain. By finding these target pages that are connected to a large number of doorways, an entire spam operation can be stopped in a single pass. View: Strider Search Defender Project News source: Betanews Read full story...
http://feeds.feedburner.com/~r/neowin-main/~3/http%3A%2F%2Fwww.neowin.net%2Findex.php%3Fact%3Dview%26id%3D34095
Spam Detection Using an Artificial Immune System
Meer over: Spam Detection Using an Artificial Immune System|2006-07-11 03:04:19
rangeva writes "As anti-spam solutions evolve to limit junk email, the senders quickly adapt to make sure their messages are seen. an interesting article describes the application of an artificial immune system model to effectively protect email users from unwanted messages. In particular, it tests a spam immune system against the publicly available SpamAssassin corpus of spam and non-spam. It does so by classifying email messages with the detectors produced by the immune system. The resulting system classifies the messages with accuracy similar to that of other spam filters, but it does so with fewer detectors."
http://rss.slashdot.org/Slashdot/slashdot?m=6499
Porn Dominates the Spam Battlefield
Meer over: Porn Dominates the Spam Battlefield|2006-07-06 21:18:26
An anonymous reader writes "New York Times has published an article that explores the economics that control what type of spam shows up in your inbox. The study was done by CipherTrust and shows that porn spam is 280 times more effective than spam advertising pharmacy drugs. Paul Judge offered the following towards an explanation: 'If you look at some of the oldest and most successful forms of business on earth, they revolve around sex.'"
http://rss.slashdot.org/Slashdot/slashdot?m=6423
Google Spam Scores Revealed?
Meer over: Google Spam Scores Revealed?|2006-07-06 17:17:28
Google Spam Scores Revealed?
Seems that Google may be revealing its SpamScore ranking in the cached files of certain web sites. Barry Schwartz points to this thread on DigitalPoint Forums where one member spotted the following code while looking at the Google cache of a site.
From IMPORTANT: Google Server Errors
pacemaker-alarm-delay-in-ms-overall-sum 2341989
pacemaker-alarm-delay-in-ms-total-count 7776761
cpu-utilization 1.28
cpu-speed 2800000000
timedout-queries_total 14227
num-docinfo_total 10680907
avg-latency-ms_total [...]
http://www.searchenginejournal.com/?p=3602
Spam
Meer over: Spam|2006-07-03 13:15:30
Ik las op deze site een bericht over de verwachte toename van spam en ik dacht: ja verdomd, spam, dat bestaat ook nog. Je hebt het niet eens meer in de gaten.
http://www.webwereld.nl/ref/rss/41836
Porn spam 280 times better than drug spam
Meer over: Porn spam 280 times better than drug spam|2006-07-03 06:07:28
NY Times Monday: Page 1 story on spam effectiveness in garnering 'clicks' online...
http://rawstory.com/comments/16946.html
Killing Spam With Postgrey, Postfix
Meer over: Killing Spam With Postgrey, Postfix|2006-07-02 22:31:00
"This tutorial will show you how to setup greylisting with Postgrey and Postfix on Debian. Greylisting will not replace spam filtering software like SpamAssassin but it will serve as a powerful first hurdle for spam thus reducing the amount of spam entering the system at all."
http://www.osnews.com/story.php?news_id=15069
Spam Poetry of the Day
Meer over: Spam Poetry of the Day|2006-06-24 23:10:02
Here are the texts of some comment spams that were trapped in my Akismet spam filter.
The located orbital filters Jessie into the declared radar. Personal loans awaits Jessie. Jessie tosses the feat sod before the breathing limb. Jessie forests personal loans.
USA and UK targets payday advances. Why does an unpleasant nature grant a deadly physics? [...]
http://www.evilgeniuschronicles.org/wordpress/2006/06/24/spam-poetry-of-the-day/
China Getting 'Serious' About Spam?
Meer over: China Getting 'Serious' About Spam?|2006-06-23 03:24:44
Ritz_Just_Ritz writes "Apparently, the Chinese MII (Ministry of Information) is going to crack down on Spam from within China. This will include training for 1000 mail administrators and recruitment of 20,000 'anti-spam volunteers.'"
http://rss.slashdot.org/Slashdot/slashdot?m=6183
Email spam
Meer over: Email spam|2006-06-22 03:47:55
Due to excessive spam my curry.com email address has been shut down until midnight. Hopefully the bounce messages will get me out of some databases. Until then use my gmail address if urgent.
http://curry.podshow.com/?p=193
CommunicAsia 2006: Spam Filtering In Your Phone
Meer over: CommunicAsia 2006: Spam Filtering In Your Phone|2006-06-20 18:22:23
You can do SMS spam filtering soon...
http://www.slashphone.com/64/4583.html
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