For further details, please see the Twitter thread at https://twitter.com/1njected/status/453781230593769472
Examples of detection capabilities are reproduced below.
In the event of this, and other security threats that are highly emergent, organizations may wish to consider implementing analysis capabilities on archived packet captures in order to detect first signs of attack activity. Granular analysis using fresh indicators can help pinpoint where and when a targeted attack (or a commodity malware attack, for that matter) may have first entered the network, or when such attackers may have exfiltrated data using a technique that was not yet being detected on the wire during the time of the initial attack and infiltration. The capabilities of Pravail Security Analytics will give organizations the means to accomplish such an analysis. A free account is available at https://www.pravail.com/ and rest assured that this site is using the latest non-vulnerable OpenSSl version.