Probably their Russian gifted Pantsir-S1 system. Shame that the Israelis wasted those missiles - maybe next time there will be some counter measure to defeat the system, short of taking it out first.
If you'd like to be on or off, please FR mail me.
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Hence the utility of attacking those systems again and again. The Israeli’s are on par with the US in counter-counter measure warfare. A member of my family worked on the Arrow Missile Program in Israel at one time....
“The Syrian Observatory for Human Rights,
a Britain-based war monitor, said the air strikes
targeted Syrian army and Hezbollah weapon depots.
The strikes sparked “successive explosions and fires,
causing material damage” in the depots,
where land-to-land missiles have been stored
among other weapons, the Observatory said.”
http://en.c4defence.com/AFP/Syria-conflict-Israel2ndlead/57896/3
...you believe Syrian sources?
It wasn’t wasted. They can derive data from the interception.