Be on the lookout

I’m hearing more rumors of ESPs seeing customer accounts being compromised, similar to what happened with The Children’s Place.

Experian CheetahMail identified an isolated incident in which someone used a valid client user ID and password to gain access to the client’s email account and transmit an unauthorized and unlawful email. To recipients, the email appeared as a solicitation from an unrelated sender (disguised as Adobe) and directed viewers to an illicit website requesting credit card information. The impact was limited to a single, targeted outbound email.

I have a few suggestions for companies to be able to identify these types of attacks before mail goes out.
1) Set up monitoring to look for large number of uploads in a particular account. Tens of millions of new addresses, even spread over multiple uploads, should raise red flags and trigger manual review of an account.
2) Scan outgoing messages for links mentioning or advertising Adobe (all the spams so far seem to be linking to adobe phish sites).
3) Monitor for unusual send activity. A customer that sends small amounts of mail regularly, but all of a sudden spikes to 10 or 100 times more mail may be compromised.
4) Monitor FBLs for spikes in activity.
5) Monitor bounces for spikes in activity.
Much of this monitoring should trivially slot into the monitoring that you’re already doing as an ESP. You may want to add alerts to go out to relevant people inside your company.

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ESPs leaking email addresses

Two of my tagged email addresses started getting identical pharma spam over the weekend. It is annoying me because I am now getting spam in a mailbox that was previously spam free. The spam is overwhelming the real traffic and I am having to make some decisions about what to do with the email addresses and their associated accounts with the companies I gave them to.
One thing I did notice, though, is that both companies use iContact as their ESP. A cursory check of my other mailboxes shows that none of my other tagged addresses are mailed through iContact. I don’t think it’s very likely that these two individual, unrelated companies made deals with the same spammers to sell address lists at the same time. It’s much more likely that there was a compromise somewhere and address lists were stolen.
Edit: Checked my other account and, likewise, I’m getting the same spam to a 3rd address serviced by iContact. I’ve sent mail to all 3 companies involved and we’ll see how they react.
And, as I was thinking about this, iContact just laid off a bunch of staff about the same time they announced their partnership with Goodmail. Based on past history with companies in this situation, it seems possible this is a disgruntled former employee. I’ve also seen reports from other people noticing spam to addresses given to iContact customers.

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I don't have a "this is spam" button

Here at Word to the Wise we have some unique requirements for mail. For instance, I need to be able to receive examples of emails that are being blocked elsewhere in order to do my job. This means not only do we not outsource mail to someone else, we also run limited spam filtering on the server side. It does mean I have to wade through a bit more spam than others do, but that’s generally not a problem. My client side filters do a decent job at keeping most of the crud out of my mailboxes.
My work account gets very little spam in the folder I use as my inbox. I’m not even sure exactly why this is, but it’s true. One of the exceptions is a psychic (no, really) who has a copy of one of my work email addresses and she regularly spams me offering her spiritual guidance and the opportunity to buy her stuff in order to make peace within my world.  I’ve received these before, usually I just delete them and move on.
Occasionally, though, I long for the ease of a “this is spam” button. Just to be able to hit a single button, no work, no effort and know that I have registered my frustration with a spammer. Today was one of those days. I really don’t want this psychic spam in my mailbox. It seems reasonably professionally done, though, so I check the headers to see if it’s being send from any ESP I know and if it’s worth my time to send in a “hey, didn’t sign up for this, and no, I didn’t forget, either” email.
I visited the website belonging to the domain sending the mail.

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I hate spam

But sometimes it makes me laugh. Yesterday I got a 419 that said, “[…]have been diagonalized with HIV/AIDS which has defiled all forms of medical treatment[…]” Diagonalized? Defiled all forms of treatment?
At least it was entertaining, right?

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