What about the botnets?!

Botnets are a huge problem for a number of reasons. Not only are they used to send spam, they’re also used in criminal activities. One of the major challenges in dealing with botnets is finding and stopping the people who create and use them. Why? Because the internet is global and crime tends to be prosecuted within local jurisdictions.

White Collar Crime.
Catching someone running a botnet, or involved in crime online in general, requires cooperation from authorities in multiple jurisdictions. Police, lawyers, and other officials have had to create relationships to work together, all while respecting international law. It’s a involved and complicated process, and that’s before we talk about the challenges in actually figuring out who is running the botnet. Subject matter experts, like operating system manufacturers or anti-virus companies, are also part of the process in most cases. (Read about the Simda botnet takedown at Interpol)
Despite the challenges, botnets do get taken down and criminals do get arrested and brought to justice. Today the Department of Justice announced a guilty plea from a Russian citizen charged with infecting machines with malware.

Senakh and his co-conspirators used the Ebury botnet to generate and redirect internet traffic in furtherance of various click-fraud and spam e-mail schemes, which fraudulently generated millions of dollars in revenue. As part of the plea, Senakh admitted that he supported the criminal enterprise by creating accounts with domain registrars which helped build the Ebury botnet infrastructure and personally profited from traffic generated by the Ebury botnet.

Ebury is kinda interesting because it’s actually a Linux botnet, not a Windows one. It used a SSH exploit to get in, stole user credentials and then smuggled the credentials out in special TCP packets. CERT-BUND has some of the gritty technical details of what they discovered. And WeLiveSecurity also has a writeup on how the infection worked.
Botnets are a problem. Catching people is a long, drawn out challenge. But, it can be done.

Related Posts

Phones part of SMS botnet

Spammers have been moving into the phone market for a long time. Just recently security firms have discovered an Android  botnet. This botnet sends viruses over SMS, and when a link in the SMS is clicked, the phone is infected with the virus which then sends more SMS.
The technology for blocking and reporting SMS spam is comparable to email blocking technology 10 or 12 years ago. There just aren’t many tools for people to use to control this spam. M3AAWG is addressing mobile spam, but it still seems that the volumes are increasing without much recourse. Even the 7726 reporting number doesn’t seem to stop the spam (nor remove per-text charges).
At least in the beginning of the email spam problem, we didn’t have botnets. Now, at the beginning of the curve for SMS spam, we already have self replicating botnets. I’m afraid the good guys might be behind on this issue.
Then again I might just be cranky because SMS spammers woke us up at 4:30 am.
Infoworld article
TNW article
PCWorld article

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Sanford Wallace goes to Jail

Sanford Wallace has been sentenced to 2 years in jail by the US District court in San Jose for contempt of court and electronic mail fraud. Sanford has been around for more than 2 decades. He is one of the spammers that drove me to learn how to read headers and report spam back in the late nineties.
White Collar Crime.
Sanford has been in and out of courts and the news almost as long as he’s been spamming. When I dug into Pacer this morning to grab a copy of the sentencing report I see multiple cases, some going back as far as 1996. There aren’t electronic records for Concentric Network v. Wallace, et al. (case: 5:96-cv-20829-RMW) but the final disposition of the case says “Permanent Injunction.”

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Whirlwind that is M3AAWG

It’s been a great conference, and it’s only about half done. As is common at these conferences, I write down lots of things we should do and need to publish. The difference is now that we are growing I may have the time to put the polish on them and get them published.
Today’s keynote discussed the economics of botnet mitigation. Michel van Eeten from Delft University of Technology presented information compiled from some different datasets about botnets.
Good news
Botnet infection rates are relatively stable. They’ve not spiraled out of control like some people were predicting.
Interesting news
More than 50% of bot infections are contained on 50 ISPs in the entire world.
Bad news
Centers set up specifically to fix botnet infections don’t really have a big impact on infection cure rate.
Good news
ISP actions and walled gardens do have an impact on infection cure rates.
The biggest take away from the session is that ISPs are critical in both protecting from infection and helping users cure infection once it happens.

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