Osirusoft Blacklists The World

ariehk writes "As of today, Osirusoft, distributer of the SPEWS and open relay blocklists, among others, is no longer operational. Servers using these lists (including the FTC) are currently rejecting ALL email. This shutdown seems to be in response to a several-week-long DDoS attack on Osirusoft, SPEWS and others, resulting in both sites being down. This has caused much discussion on n.a.n-a.e, including the suggestion that the attack is somehow related to the SoBig worm. The spammers must be hurting if they can devote these kinds of resources to attacking blocklists." Read on below a related submission.

NSXDavid writes "Earlier today our site mysteriously ended up on Joe Jared's Osirusoft SPAM blacklist which is used by lots of antispam software (like SpamAssassin and sendmail). Since he is currently under a serious DDoS attack, there was no way to appeal this decision. We contacted Mr. Jared by phone who informed us that 'everyone needs to stop using Osirusoft and that he's going to be shutting the service down.' Then he says he's going to blacklist 'the world' (aka, ban *.*.*.*) to get his point across. Later on this evening, he apparently went ahead and did just that. Succumbing to lawsuits and DDoS, a once great blacklist is dead. SpamAssassin is removing it from their config in the next release (rc3) and email admins around the globe are reconfiguring their mail servers."

Comments

Good riddance to bad rubbish

[Sebastard]

My co-located server has been blacklisted by SPEWS for months now. And it's only because of a spammer elsewhere on my two-providers-up-the-chain regional ISP. And the spammer is on a different C-class entirely, yet my IP range was still included as punishment to the ISP. The fact that I suffer as a result doesn't matter to these people. Changing providers is not an option for me at this point (long story) so I've just had to live with it. I can't email several friends, and regularly field complaints from people who host on my server.

I believe in fighting spam, and I think that blacklists are a good idea to a certain degree, but I've always felt that SPEWS was too draconian, and had no option for recourse for those of us who were (as they put it) "collateral damage".

I posted to the referred newsgroup a few times, and got nothing but venom from the locals.

I'm not sad to see them go.

So what DO we do?

[RealisticWeb.com]

I would like some serious talk about just what exactly we ARE supposed to do about spam. Government moves too slow to pass an effective law, and the spammers don't abide by the law anyway. Filters don't work effectivly, blacklists are not working either apparently. Does anyone have a usefull suggestion about how to fix this problem?

One idea I've had (or maybe I've heard it somewhere else, I can't remember) is authorization. Change the protocol, or maybe just implement at server, so that before anyone can send you an email they have to request permission. In that request they would identify themselves, and before they start emailing you stuff you would have to send them back permission. Anyone that is in your contact list would automatically be given permission. If it turns out to be spam you could revoke permission. Also analyze the email header and do reverse lookup to see if the domain names resolve properly. If a domain is spoofed, deny it automatically.

Perhaps this has been done before, and I'm sure there are flaws, but I am tierd of hearing about how big a problem this is, without hearing any good ideas about fixing it. Any other thoughts?

Bayesian Filtering

[someguy456]

I can't completely describe my satisfaction with Bayesian filtering. I've been using SpamBayes for a few weeks w/ Outlook (please don't smite me), and it hasn't let me down. I have received absolutely no spam in my inbox these last couple of weeks. Granted, I built up a collection of >500 unwanted e-mails, but it only took a couple of days :)

perhaps this is a lesson that needed learned

[Cogneato]

As someone who was blocked by both osirusoft and spews as part of their policy of blocking entire IP blocks, I feel no pity for them or for those who use them. In fact, I hope that at least some of them are learning their lessons.

The IP address of my server happened to fall a few dozen numbers away from that of a spammer. As a result, it cost me thousands of dollars in lost time and expenses to track down the issue, contact my isp and have them contact whoever it is on Mt. Self-Righteousness that takes you back off the list. Getting on the lists takes day(s), while getting off the lists takes weeks.

Blocking entire IP blocks is nothing short of techie-terrorism. In other words, you can't convince the real wrong doers to stop, so you harm the innocent bystanders to try to get them to revolt.

SPEWS and those that support them point the finger at the ISP while purposely hurting innocent small businesses like mine. It's time they take responsibility for the tools they provide, and in this way, they are no different than Microsoft.

How *do* we fight spam?

[michellem]

Having been myself unfairly blacklisted (not by Spews, but by another list) because of the actions of my ISP, I really have come to have serious issues about the blacklisting process. I understand the principle - get innocent bystanders pissed off at their ISPs, then have them complain to their ISPs, or switch ISPs, and then ISPs change their behavior.

The problem is that many people, for a variety of reasons (geography being one) can't change ISPs, and many ISPs (mine included) did nothing in response to my complaints (because they knew I wasn't going to move). So what does this do? It certainly doesn't help anyone!

I hate spam as much as the next gal, and I think that the SpamAssassin approach (which is to label mail as spam depending upon certain criteria) is a much, much better approach than blacklisting.

Spammers: BRING IT ON

[krray]

I don't see the problem. Well, personally at least. I mentioned to the wife, in March I believe, that I sensed something and nailed it on the head (spammers hi-jacking Windows PC's for relaying).

I have got to say. I sure do like the Unix's. Linux, BSD, OS X -- doesn't matter. A little thinking, some *shell* scripts, and even a few hack job "vi" scripts. Version .01 of nothing that I'd want to show any REAL programmer at least. :) It's dirty, ugly, yet very effective...

I've tried spamassassin, this filter, that filter. For me, my way seems to be working _very_ nicely. I use it at home (Linux), at work (Linux & BSD) and for a few architect friends/clients (OS X). Years ago now (right after the lawyer's emailed me :)I started peppering the Internet with email address' on USENET, and then web pages, etc.

Those are my harvesting address'. Nobody should EVER email them, realistically. Oh the spammers like to try dictionary type attempts/attacks. Thanks -- I added those to the alias database as well for future attempts.

A couple of hacked up scripts (I'm working on it in C for even FASTER speed and some learning :) -- and I frankly don't personally see it anymore. Literally. NONE. I read about it in the logs, of course. :)

Can it scale? Sure -- I'm figuring between 3-500 messages a _second_ isn't a problem. More will simply get queued and then I may notice a "lag" on my server. Bring it on. 1 IP and I whack the entire /24 subnet. I arbitrarily see X number of subnets and I block the /16 subnet.

It's the /8 ball after that and those are pretty much final. 210, 211, or 212 ring a bell to anyone?

Sure -- sometimes somebody will in inadvertently get blocked. The bounced message directs them to a web page explaining what to do next. BEST solution is to call me. You know me right? Heck, you probably have my 800 number... Oh, you DON'T? Piss off then.

Heck, I even spell out a completely external email address (@Mac.com) that you can forward the blocked message to ... I'll take care of it...

Ever wonder what those MAILER-DAEMON messages are all about? The Windows user's machine _starts_ the transmit of the message and disconnect. Your mail server sits there waiting for data from them to a local user -- which becomes un-deliverable and drops a note to whatever you use for the postmaster (can't publish THAT anymore, can we?).

Re-routed now. Thanks, got ANOTHER IP subnet to black ball.

I've racked up a large chunk of the Internet already -- and the stat's only seem to be increasing. Of course I've "white-listed" specific IP's of ISP's mail servers as needed. 3 so far I think. Most ISP's will put their mail server on a different subnet than their assigned IP's. Thanks. 1 white-listing was for a dedicated single IP user who's neighbor turned out to be a spammer. He had words with his ISP -- the spammer was kicked after that turned into conference call.

Sure -- some loser ISP will see more money from the spammer and side with them. We all know those ISP's -- and I've seen the same IP ranges in their listings as mine. I doubt the legit customer will remain there for long as I know I'm not the only one blocking them. Ultimately $$$ talks and the spammers are going to run dry eventually. They're now resorting to theft of services since they can't find legit connections anymore...

REJECT(S) TODAY: 482
Subnets Blocked: 434210 (110289340 total hosts in the /24 subnets [255])
Percentage: 2.834% (3906250000 Internet addresses' [~3.9 BILLION] Served :)
Subnets TODAY? 142 (36068 total IP's)
Harvested: 49 messages
URL Lookups: 0

That's 49 messages today to some dummy account. No hits for the right web page (from a blocked message) in the logs... 142 IP's (now complete subnets

Re:Blacklists and reality

[leviramsey]

This is exactly why I think that SoBig is the perfect spamming mechanism. AFAICT, it essentially gets around nearly every non-content-based spam filter (ie Bayesian and SpamAssassin et al).

By sending spam from an amazing depth and breadth of compromised networks, it forces blacklist operators to go into "block everything" mode, which is so draconian that users of the blacklists will disable them.

As I posted in another story, if ISPs start blocking outbound port 25, the next iteration of the worm simply uses the Outlook SMTP settings to relay through the official MXs of the ISP. Given the flood of abuse reports, many ISPs (especially larger ones) are simply going to /dev/null abuse reports; they can be reasonably sure that their servers aren't going to end up in blacklists used by a lot of people (because heads will start to roll among the admins who use the blacklists).

By pretending to come from an address that has at most two degrees of separation from the recipient, they will get around a fair amount of whitelisting (this is exploiting the greatest flaw in TMDA and the like: trust of the From: address).

RBL Consequences

[nsxdavid]

Spam is starting to hurt me a lot worse than I would have ever imagined. It's not the volume of spam I get, which is obscene, but rather the shotgun anti-spam efforts that we somehow get caught in.

About a month ago Earthlink decided we were sending out spam and cut us off. So, despite the fact that we have no relationship at all to spam, we were unable to communicate with any of our customers who use Earthlink. After appealing, they realized the mistake and removed the block. How did it happen? Seems that if an Earthlink customer just accuses you fo spam you can end up on the list. Thankfully cooler heads prevailed at Earthlink and the matter was resolved quickly.

We were blocked by AOL once too. How ironic since we use to be their #1 3rd party content provider back-in-da-day (remember hourly?). They should have know about us. (grin) Fortunately that was resolved too.

Then, of course, today we got hit by SPEWS and that lead to our phone call to Mr. Jared. The poor guy was frazzled, and rightly so. But we had a legit beef...

Our business is entirely web based. We have to deal with a heavy volume of customer feedback, all of which want fast responses. Any hickup and we can get really far behind. But when we get blocked, we're almost helpless. We get an email "Hey, my character got killed by a ravenous bugblaster beast from trall!" And we write back, "Oh my, let me restore your character!" only to have it be filtered out by some shotgun blacklist. They get no response and start flaming us for "not responding". A day or more of this and things get really messy.

You start to feel like you are at the mercy of some so-called "authority" that could not care less about your guilt or innocence. If he or she wants to, they can just take you out. We've participated in opensource, contributed back, done the good netizen thing... yet this real-time blacklist thing hangs over us. We never know when something else like this is going to bite us. And maybe next time there won't be any appeal. :(