It might be quite surprising, but thanks to statistical analysis it is possible to distinguish between the legit and suspicious encrypted traffic without even decrypting it!
read more on Cisco site
Free Cisco ASA firmware update
Don’t have an active service contract for your Cisco ASA ?
Here is an opportunity to get a free update! Just send an email to TAC and refer to that vulnerability report. You get free and legal update. Do not forget to attach serial number of your device and current firmware version.
Keep in mind that usage of obtained file is legal only on device for which was requested.
Tried and it really works 🙂