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Posts Tagged ‘web servers’

Mysterious, yet familiarOver the past couple of months, there has been a noticeable increase of heavily obfuscated JavaScript code that embeds malicious iframes. Most of those code were injected into JavaScript files included from compromised websites (instead of the home page), which is supposedly harder to spot by the website’s admin.An example of such injected […]

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Nymaim – Obfuscation Chronicles Introduction Last month, my colleague Sebastien Duquette detailed the home campaign, a long-lasting operation consisting of compromised web servers running a malicious Apache module named Darkleech (detected by ESET as Linux/Chapro) that redirects visitors to a Blackhole exploit kit. Sebastien stated that one of the final payloads dropped by this operation […]

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In the last few months, we have witnessed a rise in the number of cases of modified Web servers that inject malicious redirections into every website that it hosts. One example was the malicious Apache module (Linux.Chapro and Trojan.Apmod) that we blogged about recently. A newer example is Linux.Cdorked, about which our friends at ESET […]

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