Swedish ISP Blocks Computers That Send Spam

snuppepuppan writes "One of Sweden's largest ISPs, Telia starts to block computers that send spam. 'The computers that Telia will block are primarily those that have been infected with "trojans" which are being used, without the customer's knowledge, to send enormous amounts of spam.'"

Comments

Customers are *not* unaware of it

[Jugalator]

The users blocked are notified about it, and Telia will help them sort things out. Probably by giving suggestions to clean up trojans, etc. since these are often the reason someone spam without knowing. They also only seem to block well-known, heavy duty, spammers right now, since they haven't yet implemented a spam filter, but are considering it.

So, even if the customers won't be given a time period to stop spamming, they're still not left unaware about it, as the /. news post incorrectly states.

Telia says they're also attempting to detect spam hosts much quicker than earlier, when it could take up to a week or more to shut a host on their network down, when the damage was already done.

Re:Customers are *not* unaware of it

[clfrd]

The post doesn't say the users aren't aware of it, it refers to the users being unware that they're acting as spam relays.

You get stung, you react.

[Gubbe]

TeliaSonera is a company formed by the merger of swedish Telia and finnish Sonera. Sonera is one of the largest Internet/telecommunications providers in Finland and their e-mail systems have become a laughingstock during the last month. Reason: they don't work. There have been delays of several days in message delivery, some messages are lost entirely and their SMTP server seems to be down.
Sonera is blaming this 100% on the W32.Swen.A virus and while there is ongoing debate regarding Sonera's e-mail administrators' competency, that certainly explains why Telia is scrambling to remedy this problem in Sweden. [Un]fortunately (ignore the part in brackets if you are a privacy advocate) the Finnish legislation doesn't allow Sonera to perform the same thing as even automatic monitoring of e-mail traffic is not permitted by the communication privacy laws.

Re:a great idea

[gizmonic]

My guess is that part of the problem is that most abuse desks are flooded with inane crap. At least ours is. I can't tell you how many emails we get from people who forward a spam to us, and do not include full headers. I mean, they had to find the IP and track down who owned it to get the spam report to us, so how can they then forward us the spam and not include headers? Amazingly, that accounts for well over half the abuse mail we get. Then there are the people who send a message saying "Stop sending me spam" and include an IP address, followed by a copy of our ARIN netblocks, as if we didn't know who we were, and that's it. No spam, no timestamp. Nothing. Then there are the myriad of people who simply write our abuse desk with nothing more than "Please remove me from your mailing list." And it goes on and on and on like that. Of course, now that all the nice new viruses are out there, we also get a ton of "One of your users attacked me on port 135" emails. (We have port 135 blocked on our routers to keep from our users from infecting the net, but on the same NAS, they can still get to each other.) The best ones are from people who send us email claiming they are being attacked by one of our DNS servers because their firewalls are capturing logs of the DNS requests.

That's why, as I've said before, we love SpamCop. When we see a SpamCop report, we know we will have everything we need to knock someone off the network. Very seldomly have we gotten a SpamCop report on something that was not spam. As for the rest of the abuse mail? Maybe 1% or 2% have enough information to track the user, and are actual abuse issues. And usually, they were already banned from a SpamCop report.

Anyway, I've rambled on enough. But for those who don't work abuse for a large ISP, now you have a small glimpse of what the abuse mail looks like.