Sunday, July 17, 2016

SNOOP SNIF AND COPY RFID CARD ...WHATEVER PURPOSE, BANKING, PASSPORTS, BUT SPECIALY SECURITY DOORS

Emulate and sniff Legic Prime cards with Proxmark 3

 

we have to investigate our university system, which used the Legic Prime chip and is now changing to Legic Advant. So for our seminar we have to attack the old system which we succeed by writing valid values to the card. The next step would be to emulate "own" cards with the proxmark3 and it would be nice to sniff to the traces.
So first: Emulating: Proxmark has already a function: "hf legic sim" [phase drift [frame drift [req/resp drift]]] Start tag simulator (use after load or read)
Which we used after reading a valid card but it didn't worked. Maybe someone can help us with that.
Second: Sniff traffic: We'd like to sniff the traffic between card and reader. But proxmark has no function to sniff legic traffic. We can only sniff 14a traffic without annotations but that didn't worked neither.
 
 

 ou can use the "hf snoop" to sniff the traffic between reader and card. Use the latest source from GitHub, compile & flash your proxmark3.


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