The Lab Blog
Yet another new credit card dumping utility has been discovered. BernhardPOS is named after (presumably) its author who left in the build path of “C:bernhardDebugbernhard.pdb” and also uses the name Bernhard in creating the mutex “OPSEC_BERNHARD”. This utility does several interesting things to evade antivirus detection. We’ll talk over some of them in detail. Details about the sample, including a hash are available at the end of this writeup.