488 Not Acceptable Here

We were talking about Ukraine and the proliferation of SIGINT capabilities.

Now, we’ve got some facts thanks to Adaptive Mobile and the Ukrainian telco regulator. It looks like the Russians exploited the fact that they have SS7 roaming links with the Ukrainian mobile operators, and re-routed their targets’ calls to numbers in St. Petersburg.

After this year’s CCC, expect nothing but more SS7 exploits. It’s not widely known enough that this network, the crucial one for mobile telephony, is a default-trusting system. I have a nice little handbook Tekelec gave away with a full set of commands both for SS7 and SIP – I always liked the fact the latter has an error code for Not Acceptable Here.

This entry was posted in A Fistful Of Euros, Ukraine by Alex Harrowell. Bookmark the permalink.

About Alex Harrowell

Alex Harrowell is a research analyst for a really large consulting firm on AI and semiconductors. His age is immaterial, especially as he can't be bothered to update this bio regularly. He's from Yorkshire, now an economic migrant in London. His specialist subjects are military history, Germany, the telecommunications industry, and networks of all kinds. He would like to point out that it's nothing personal. Writes the Yorkshire Ranter.