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Spammers are finding new ways to bypass filters, but that doesn't mean you have to let them bombard your inbox. Rob Buckley reports Symantec has warned that a critical flaw in the ActiveX control of image uploaders that have been widely distributed to users of popular social networking sites Facebook and MySpace can be exploited by hackers to install malicious code on user's computers. An error in the way in which the Firefox and Opera browsers handle image files could allow an attacker to export a user's web history or crash the Firefox browser, a Polish researcher and US-CERT have warned. Image spam numbers hit lowest recorded levels in 10 months, according to security experts. In the last six months, image-based spam has pushed its way to the forefront of spam technique discussions. Image-based spam is not new, but it is now wreaking havoc on the effectiveness of many anti-spam products. ProDiscover Forensic 4.9 is a solution that is best used to analyse an entire system. It includes utilities for viewing the registry, event log and internet activity from a captured image. Although numerous security vendors have testified to a decrease in image spam in recent months, that hasn't stopped spammers from tweaking their methodologies. Google's Picasa image hosting service is fast-becoming the new tool of choice for spammers to elude e-mail filters. Hackers could run malicious code on the RAZR device by sending a corrupt image by MMS, according to an advisory from TippingPoint Levels of image spam dropped again in June, but researchers also saw increased use of PDF spam. Levels of image spam held steady last month at 15 to 20 per cent of all junk mail, but phishing emails were at their highest levels this year, according to just-released research from MessageLabs. New technology claims to defeat latest spam techniques. Security experts have developed a hybrid file type that looks like an image but can also run a Java applet surreptitiously in a browser.
All too often, people are victims of identity theft. Less common, but perhaps more dangerous, is the growing trend of medical identity fraud. Traditional image spam is again on the decrease, but attachment spam - containing images as part of Microsoft Office files - is on the upswing, according to Symantec's "State of Spam" report for August. One of five image spam emails captured during July contained a scam PDF document, according to research released this week by messaging security vendor MessageLabs. Yet more reasons not to open email from unknown sources. We've all heard about the recent rise in spam, and while I dislike spam as much as the next person, I recently received a spam message that got me quite excited. Spammers have launched their 2008 holiday season spam campaigns using email to tout pharmaceutical products and casino spam with a Christmas angle.
A technology has been developed that claims to protect against software that steals keyboard ID entry.