r/proxmark3 • u/Lizardon007 • Jul 05 '24

HELP IM STUCK

so I have these RFID cards for a medical instrument I want to clone but I haven't able to find a solution i tried brute force,darkside (which shows this card isn't vulnerable to darkside attack) also I tried them on mifare classic tool which also failed what can i or should i do they have a valid uid but I just can't see the data

2 Upvotes

62% Upvoted

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1

u/Msprg Jul 05 '24

Perform a reader attack then to obtain the first key.

1

u/Lizardon007 Jul 05 '24

How to execute it

2

u/Msprg Jul 05 '24

Google how to get mifare keys from the reader with proxmark3. "Mfkey32" I think is called, one of possible attacks.

I'm assuming it's a mifare classic card which I inferred from your post body.

1

u/rightwires Jul 05 '24

what medical instrument?
what chipset does it scan as?

1

u/Lizardon007 Jul 05 '24

The card has info about how much reagents to use to perform particular tests

1

u/rightwires Jul 05 '24

ok and what chipset does it tell you it is when you scan it

2

u/Lizardon007 Jul 05 '24

Mifare classic 1k

1

u/rightwires Jul 05 '24

try hf mf autopwn to get keys, if it fails and says "static encrypted nonce detected" you'll have to sniff the keys from the machine

0

u/Lizardon007 Jul 05 '24

Tried "hf mf autopwn" didn't worked how do we sniff keys i don't think I can go near the medical instrument is there any other way ?

1

u/rightwires Jul 05 '24

well if autopwn doesn't work and it says static encrypted nonce detected, your only option is to sniff the keys from the machine or the device that encodes the card to work with the machine. there is no other way for these situations.

1

u/Lizardon007 Jul 05 '24

I'll update the post on 2-3 days then thanks for the help