Does anybody know what elementary file 2FE4 contain on SIM cards?
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Does anybody know what elementary file 2FE4 contain on SIM cards? It doesn't look like it is described in any standards I've looked at, and its contents varies widely across cards. Maybe boost for reach?
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Does anybody know what elementary file 2FE4 contain on SIM cards? It doesn't look like it is described in any standards I've looked at, and its contents varies widely across cards. Maybe boost for reach?
I'm quite sure pinging @LaF0rge on this subject is the closest way to have an answer
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Does anybody know what elementary file 2FE4 contain on SIM cards? It doesn't look like it is described in any standards I've looked at, and its contents varies widely across cards. Maybe boost for reach?
A couple samples:
8f3d2292ed824a20b8247f11c164d66d01012713492001270100002896130523007272
09b480d62be14be48cfa85cc3798729700023302012771601000000026141103005727
24be6a60efdb48d095dd288f8a025fc000083710001361801000002348130819003277
6dc7086e1c5a4af7bf5994981497cf76313736373737ffffffffffffffffffffffffff
87001290010001040000610573350078 -
Does anybody know what elementary file 2FE4 contain on SIM cards? It doesn't look like it is described in any standards I've looked at, and its contents varies widely across cards. Maybe boost for reach?
@infosecdj
It's not described in EMV either, I just checked in case it was something related to financial interchange, so it's not that. -
R relay@relay.an.exchange shared this topic
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A couple samples:
8f3d2292ed824a20b8247f11c164d66d01012713492001270100002896130523007272
09b480d62be14be48cfa85cc3798729700023302012771601000000026141103005727
24be6a60efdb48d095dd288f8a025fc000083710001361801000002348130819003277
6dc7086e1c5a4af7bf5994981497cf76313736373737ffffffffffffffffffffffffff
87001290010001040000610573350078@infosecdj just guessing, but some of these looks like date formats. Might be information on the cards manufacturer, like production date/batch number and so
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@infosecdj just guessing, but some of these looks like date formats. Might be information on the cards manufacturer, like production date/batch number and so
@infosecdj are the samples from cards from 2011-2013 this would fit that theory.
For example: Sample 1: 130523 → May 23, 2013 -
@infosecdj just guessing, but some of these looks like date formats. Might be information on the cards manufacturer, like production date/batch number and so
@nieldk which is precisely why I am asking, indeed
I suspect at least some formats to carry product-specific information and want to know the format, if any standard applies at all here. -
R relay@relay.infosec.exchange shared this topic
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@nieldk which is precisely why I am asking, indeed
I suspect at least some formats to carry product-specific information and want to know the format, if any standard applies at all here.@infosecdj I’ll see if I can dig up some of my SIM cards not being used anymore. If I can find any, I’ll be happy to send you them . (dK sims)
