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Security in Context: The BeyondTrust Blog

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Bringing you news and commentary on solutions and strategies for protecting critical IT infrastructure in the context of your business.

A Brief Overview of Darkleech

Posted April 4, 2013    BeyondTrust Research Team

A piece of malware, Darkleech, has been making the news rounds as of late. This one targets web servers, specifically Apache 2.2.2 and above. Instead of merely compromising a web server and uploading malicious content to be served to unsuspecting victims, Darkleech goes a step further by installing a special module that is loaded by Apache and used to dynamically manipulate web pages the moment they are served to users accessing the compromised website. These web pages will redirect unsuspecting visitors of the compromised website to exploit kits like Blackhole or other malware like FakeAV or ZeroAccess, thereby compromising those users as well. Additionally, Darkleech will install a malicious SSH service onto compromised servers, so the attackers have constant access to the servers.

At this point in time, technical details about the initial infection vector are not available, other than information indicating that web administration panels (such as cPanel, Plesk, Webmin, and WordPress) have been identified as being the entry point used by attackers to gain access to servers. While these attack vectors have been observed in the wild, there are countless other ways attackers can get the malware onto a system (compromising server credentials via social engineering, exploiting other vulnerable services running on the target system, etc.). However, you can still scan your environment with Retina CS to see if there are any systems that have been possibly compromised by Darkleech. The following audit will detect Darkleech infections:
– 18630 – Possible Darkleech Infection Detected

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Additional articles

asp-mvc

Exploiting MS14-059 because sometimes XSS is fun, sometimes…

Posted October 17, 2014    BeyondTrust Research Team

This October, Microsoft has provided a security update for System.Web.Mvc.dll which addresses a ‘Security Feature Bypass’. The vulnerability itself is in ASP.NET MVC technology and given its wide adoption we thought we would take a closer look. Referring to the bulletin we can glean a few useful pieces of information: “A cross-site scripting (XSS) vulnerability exists…

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Four Best Practices for Passing Privileged Account Audits

Posted October 16, 2014    Chris Burd

Like most IT organizations, your team may periodically face the “dreaded” task of being audited. Your process for delegating privileged access to desktops, servers, and infrastructure devices is a massive target for the auditor’s microscope. An audit’s findings can have significant implications on technology and business strategy, so it’s critical to make sure you’re prepared…

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Bad POODLE, Don’t Bite!

Posted October 16, 2014    BeyondTrust Research Team

Researchers at Google (Bodo Moller, Thai Duong, and Krzysztof Kotowicz) have discovered that the encryption schemes used by SSL 3.0 are exploitable (CVE-2014-3566). Although the majority of web servers implement Transport Layer Security (TLS), the majority of clients will downgrade to SSL 3.0 in an attempt to maintain interoperability between protocols. For example, when a…

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