[Gsmmap] How much of the IMSI Catcher Score can be derived WITHOUT a mobile phone ?

Ralph A. Schmid, dk5ras ralph at schmid.xxx
Mon Oct 19 13:32:00 CEST 2015


The hardware is not an issue, even a cheap DVB-T USB receiver can do this,
when we're talking about GSM. 

Ralph.

> -----Original Message-----
> From: gsmmap-bounces at lists.srlabs.de [mailto:gsmmap-
> bounces at lists.srlabs.de] On Behalf Of Steve Glass
> Sent: Sunday, 18 October, 2015 00:15
> To: Mm Bsd
> Cc: gsmmap at lists.srlabs.de
> Subject: Re: [Gsmmap] How much of the IMSI Catcher Score can be derived
> WITHOUT a mobile phone ?
> 
> An SDR can, in theory, capture more information that is just available to
the
> phone and can do so passively. Many of the same metrics apply but can be
> derived from other traffic, e.g., for C1 the presence of any unencrypted
> traffic on any channel in countries where traffic is normally encrypted is
a
> big giveaway.  Passively monitoring traffic gives a more complete picture.
It
> is, however, a game that a much smaller number of participants can play
> because the hardware requirements are for a suitable SDR rather than just
a
> Qualcomm-equiped Android phone.
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