2012 was a year full of major security incidents: Flame, Shamoon, Flashback, Wiper, Gauss, and so on. As we are about to turn the page, many unsolved mysteries remain still. Perhaps the most interesting unsolved mysteries are related to the Gauss Trojan: the Palida Narrow font and the unknown encrypted payload.

Previously, we’ve published a blogpost about the encrypted payload hoping that the crypto community will take on the challenge and break the encryption scheme to reveal the true purpose of the mysterious malware.