Posts Tagged: obfuscated Javascript


Newsflash: HTML Spammers are Not So Bright

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It’s been more than a week that we at Webroot, and countless others, have been getting floods of bogus messages with HTML attachments. I thought I’d give the curious readers of this blog a quick glance at one of the drive-by sites that load in the browser if you try to open the file. As I’d mentioned previously, the HTML files themselves simply contain highly obfuscated Javascript (code that’s hard for humans to read but easy for machines to interpret). When you try to load those malicious scripts into a browser, the script instructs the browser to load a page […]

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Modified Websites Pushing Trojans On the Rise

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For the past couple of weeks, owners of Web sites have been hit with a wave of attacks that surreptitiously infect unsuspecting visitors with a wide variety of malware types. The first wave inflicted rogue antivirus on unlucky victims, but late last week victims who visited infectious sites were redirected into a drive-by download site that pushes clickers onto a vulnerable visitor’s computer. The affected web sites have been modified to add malicious, obfuscated Javascript code to the footer of each page. Some Web hosts are trying to notify customers or fix the problems. At first, the problem affected sites […]

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