In late 2014, FireEye Threat Intelligence and the Microsoft Threat Intelligence Center discovered a Command-and-Control (CnC) obfuscation tactic on Microsoft's TechNet web portal—a valuable web resource for IT professionals.
The threat group took advantage of the ability to create profiles and post in forums to embed encoded CnC for use with a variant of the malware BLACKCOFFEE. This technique can make it difficult for network security professionals to determine the true location of the CnC, and allow the CnC infrastructure to remain active for a longer period of time. TechNet's security was
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