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Questions tagged [simcard]

A subscriber identity module, or SIM card, is a circuit used to store the IMSI number and associated key used as authentication on mobile telephony devices (for example mobile phones and tablets).

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9 votes
3 answers
35k views

Can a SIM card propagate malware?

Is it possible that malware can infect a SIM card? What will happen when I insert the SIM card in another phone?
user108810's user avatar
6 votes
2 answers
1k views

What happens when you SIM-unlock a cellphone

In the UK the process for unlocking a mobile phone (cellphone) usually involves either buying an "unlock code" from ebay which you then have to put into the phone to unlock it, or taking the phone to ...
Andy's user avatar
  • 253
4 votes
4 answers
4k views

SIM card malware advice

My goal is to communicate with a sim card via binary sms and upload new firmware and/or talk to sim card api to retrieve data such as gps coordinates etc... I am not sure how to construct these binary ...
Tim Jonas's user avatar
  • 827
2 votes
1 answer
2k views

Does the carrier network autheticates itself to the SIM card?

From my understanding this is how SIM authentication works: When the mobile device starts up it obtains IMSI from the SIM card and send it to the operator network Operator network finds the Ki(128 ...
user3362334's user avatar
5 votes
3 answers
5k views

How to identify compromised SIM Cards?

Reason for this question: This article regarding NSA / GCHQ SIM Hacking) states some manufacturers of SIM-Card have been hacked to steal SIM-Card "Ki". I want to know the likelihood of the SIM-Cards ...
M C's user avatar
  • 161
1 vote
0 answers
505 views

Shellcode Injection/Poisoning on Mobile Networks[GSM/LTE/CDMA-varaints]?

In the previous question(How do APN hacks work?) I have enquired about APN hacks but after reseaching more about cellular networks. I wonder has anybody attempted Remote-code execution/poisoning,etc ...
Xasel's user avatar
  • 131