Slashdot Mirror


Target Credit Card Data Was Sent To a Server In Russia

angry tapir writes "The stolen credit card numbers of millions of Target shoppers took an international trip — to Russia. A peek inside the malicious software that infected Target's POS (point-of-sale) terminals is revealing more detail about the methods of the attackers as security researchers investigate one of the most devastating data breaches in history. Findings from two security companies show the attackers breached Target's network and stayed undetected for more than two weeks. Over two weeks, the malware collected 11GB of data from Target's POS terminals. The data was first quietly moved to another server on Target's network and then transmitted in chunks to a U.S.-based server that the attackers had hijacked. Logs from that compromised server show the data was moved again to a server based in Russia starting on Dec. 2." A related article at Wired points out that Target suffered a similar breach in 2005, and apparently didn't learn its lesson.

33 of 137 comments (clear)

  1. POS by tompatman · · Score: 5, Funny

    Target's terminals are aptly named.

    1. Re: POS by Anonymous Coward · · Score: 5, Insightful

      Considering that the terminals in question were running un-patched, net booted XP SP2 WinPE instances with an old Java 4 version, the fact that there were attack vectors should be a long ways from shocking.

    2. Re: POS by Anonymous Coward · · Score: 5, Insightful

      Target doesn't really care. They had $100 million in cyber security insurance so most of the cost of this will be covered. AFA the public not trusting Target, well, it will pass quickly because the masses have a short attention span.

    3. Re: POS by ChromaticDragon · · Score: 4, Interesting

      I am curious regarding your information. Got source?

      Last I'd heard, the expected sum of lawsuits, settlements, fines, etc. would be WELL over $100mil (as in several times that). Apparently, for reference, a similar breach, TJ Maxx, ended up being closer to $200mil.

      Furthermore, it seems Target was self-insured for this. So it isn't quite correct to think they will glibly had this bill to an insurer - they ARE their own insurer.

    4. Re: POS by Megane · · Score: 5, Interesting

      The thing that bugs me most is that they were on a network that was routed to the entire internet. Yeah, I don't think a POS terminal needs to be able to check Google or Facebook, much less "chernyykhod.ru". Even simply putting them on a VLAN with a very restrictive firewall to the public internet would have avoided the problem. And a RFC-1918 network doesn't count if it's behind a NAT router, since these packets went outbound from the POS. Belt and suspenders.

      --
      #naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
    5. Re: POS by Anonymous Coward · · Score: 5, Interesting

      They might care, but I can bet their solution will be more bureaucracy rather than better technology. There are likely IT people within the company that see the problems and know how to fix them but they will be ignored. CxO types hate those annoying IT people that are always complaining about security. They will bring in a solution sold by a slick sales person at a major company.

    6. Re: POS by egcagrac0 · · Score: 2

      Last I'd heard, the expected sum of lawsuits, settlements, fines, etc. would be WELL over $100mil (as in several times that). Apparently, for reference, a similar breach, TJ Maxx, ended up being closer to $200mil.

      While $200 million is a lot of money to a lot of people, it's less than 10% of Target's typical annual profit. Some financial summaries

      So yes, it will sting a bit, but it's not going to put them under.

    7. Re: POS by jythie · · Score: 4, Informative

      It is also possible that their underwriters could claim that Target did not take due diligence in protecting its network and thus a full payout is not warranted. Insurance companies do not like being treated like a blank check to not take precautions.

    8. Re:POS by JoeMerchant · · Score: 3, Funny

      In Soviet Russia: Credit Cards -> Target -> YOU.

      Seriously, though, this means that the perps were able to setup a relay station in Russia. I would hope that a person/organization capable of this kind of operation would have the resources/foresight to relay data through several foreign countries.

      How embarrassing would it be for the Target data to have been heisted straight to young Matthew Broderick's bedroom? Even if something like that did happen, I'd expect the circulated news stories to tell tales of a massive, sophisticated, international syndicate of PhD hackers, who have now been arrested and jailed, or terminated by drone strike if they were hiding in uncooperative countries. Which story inspires more confidence in the safety of our financial systems? That is likely the story that will be told.

    9. Re: POS by mythosaz · · Score: 4, Informative

      Doesn't appear that way to me..

      The actual report on the software installed on the agent makes it pretty clear that the information was being gathered locally and forwarded internally to a collection point before being sent to Russia, like I suggested in previous threads:

      http://krebsonsecurity.com/wp-content/uploads/2014/01/POSWDS-ThreatExpert-Report.pdf

      The point of sale machines try to make a connection to \\10.116.240.31\c$\WINDOWS\twain_32 -- an obvious store-and-forward point on the network for exporting the card data otuside of Target. Hackers compromised this box, likely named ttcopscli3acs, since the credentials passed to 10.116.240.31 were ttcopscli3acs\Best1_user with a password of BackupU$r.

      It also made port 80 requests to 10.116.240.31 -- the server the hackers "owned" inside of Target.

      The rest of the breakdown only details the registry changes that happen when you install a service -- which was the install vector. There isn't a discussion of how the skimming/scanning/card-stealing software was distributed, but...

      IT WAS OBVIOUS THEY WERE ALREADY INSIDE THE NETWORK - they (p)owned servers - so it's a reasonable guess that they just deployed the software without needing any hole on the workstations.

      The twain_32 folder is one of those things that casual inspection would overlook - and obviously did.

    10. Re: POS by chipperdog · · Score: 2
      I usually don't post comments asking people with moderator points to mod a comment up, but mod up this parent....

      There are likely IT people within the company that see the problems and know how to fix them but they will be ignored. CxO types hate those annoying IT people that are always complaining about security. They will bring in a solution sold by a slick sales person at a major company.

      Is likely the most accurate statement I've seen in a while. In my 20+ years in the tech/IT/OT field, what a salesman is selling to (non-tech) management seems to trump the feedback that is received from tech departments. Case in point, just this week there is a copier/printer vendor that insists on installing a software agent that is suppose to report back meter readings and troubleshooting info to them (and "managing our printing costs"), but looking into it, it has capability of scanning entire network and reporting on every device it sees. As lead network and systems administrator, I say no way will I allowed an externally controlled and reporting network scanner on any of our secure networks - and I'm being framed as being uncooperative, not considering my report that the vendor solution will break many layers of security,...I may have to make sure the agent is disallowed in group policy, in case it can be installed in user space without elevated rights on the machines (wouldn't surprise me that they'll just try installing it on a user's workstation)...

    11. Re: POS by tysonedwards · · Score: 2

      Many of the common Point-of-Sale hardware does not have Linux drivers.

      Things like the multiple Barcode Scanners, Thermal Printers, Cash Drawers, Magcard Readers, etc. are typically only provided with Windows drivers.
      Like it or not, an organization like Target *NEEDS* warranty support for when something fails, and saying "we use linux" doesn't really fly.

      --
      Thirty four characters live here.
  2. in soviet russia by Joe_Dragon · · Score: 5, Funny

    In Soviet Russia We Target You!

    1. Re:in soviet russia by bradgoodman · · Score: 3, Informative

      I only checked the posts here to read the impending "In Soviet Russia..." jokes.

  3. Quietly moved ??? by amalcolm · · Score: 2, Funny

    Does moving data usually make a noise?

    --
    Time for bed, said Zebedee - boing
    1. Re:Quietly moved ??? by ruir · · Score: 2

      Any connection that doesnt need an Internet presence, or doesnt have DNS sites should cut Chinas IP address space. Less SPAM and specially less cyber attacks. Even when they are not really targeted, they have simply the bigger concentration of all of old unpatched machines, and their mentally of if it works dont touch it, instead of more consumerist views of USA, it is slow, lets bin it and buy a new one, doesnt help too into being a hive of zombie machines.

  4. It could have been worse... by bogaboga · · Score: 2

    If the attackers had left a script behind to effectively re-partition or even reformat the compromised servers' hard-drives.

    But what troubles me the most is the common American citizen's perception that we (as Americans), lie at the epitome of technology that works; after all, we have the "biggest and greatest" technology companies, right?

  5. And the NSA Missed All Of This? by littlewink · · Score: 5, Interesting

    Where's our protection from Russian financial terrorists? Were the NSA employees in charge distracted by their Starbucks carmel macchiatos at the time this was coming down?

    A clear instance of international crime/terrorism and NSA was asleep at the wheel.

    1. Re:And the NSA Missed All Of This? by ruir · · Score: 4, Funny

      NSA is too busy reading their ex emails...

    2. Re:And the NSA Missed All Of This? by swb · · Score: 3, Interesting

      I keep asking myself why the NSA isn't more involved in large-scale financial fraud considering their ample abilities to sample international data networks and their likely considerable focus on Russia and the involvement of shady financial transactions in funding terrorism.

      In the case of Russia specifically, I would expect the NSA to be heavily involved in monitoring Russian hackers given the shadowy nexus of hackers, organized crime, ex-KGB agents, and the current FSB.

  6. PCI compliance? by NynexNinja · · Score: 5, Interesting

    Target suffered similar data theft in 2005, and now again in 2013. By storing cardholder information, CVV's and (worst) PIN's in the clear, they obviously are not PCI DSS compliant. If this happened to any other retailer, Visa would revoke their PCI compliance status. If nothing happens regarding their PCI compliance status, what does it say about PCI compliance in general? PCI compliance is nothing but a joke, not to be taken seriously. Why even go through the work and trouble to get PCI DSS certified if companies like Target can flout the rules and get away without any penalties.

    1. Re:PCI compliance? by Anonymous Coward · · Score: 2, Insightful

      Because you don't have a choice if you want to stay in business.

      Most of us aren't big enough to tell the CC companies to go fuck themselves, and customers kind of require CC processing for online purchases. Many people have learned to stay the fuck away from things like paypal by this point. A business that can't take credit cards is a business about to cease to exist, or shouldn't really be called a business in the first place.

      --BitStream

    2. Re:PCI compliance? by alen · · Score: 3, Interesting

      it's like SOX and HIPAA
      you do a lot of work "certifying' that things work according to someone's checklist and repeat next year

      they are nothing more than jobs programs for auditors and a get out of jail free card for everyone involved

    3. Re:PCI compliance? by cdrudge · · Score: 2

      By storing cardholder information, CVV's and (worst) PIN's in the clear, they obviously are not PCI DSS compliant

      If reports are to believed, the malicious programs grabbed the information from memory on the infected POS machines. This wasn't a database that was dumped that had all the information in nice organized columns all in the clear.

      While PCI compliance does call for not storing, encrypting, and/or otherwise taking certain precautions with certain data, I don't believe end to end encryption between the mag stripe read head and the payment processor. It's allowed to be decrypted somewhere and this malware was designed to exploit when it was available decrypted.

  7. Won't shop there again, but... by DruidWheresMyCar · · Score: 2

    Did anyone else get an email from them offering free credit monitoring?

  8. Traget outsourced IT operatations by Joe_Dragon · · Score: 3, Insightful

    Traget outsourced IT operatations and field work is subbed out as well.

    So maybe the IT people within the company that see the problems and may know how to fix them are so far apart form the people who work that team that they can't get stuff down or things are setup up that way so it's easier to sub work out vs locking stuff down and giving each Subcontractor there own logins / private email / info on the system.

    Using common logins / just giving the info contractors who then giving that info out to the subcontracts is easier and makes it easier to change firms on each level. But then that info may not get changes / ends in the hands of non tech people who may not give it the security it needs.

  9. It largely doesn't matter by Kardos · · Score: 3, Interesting

    I'm not going to defend Target for being embarrassingly sloppy, however, no matter how you look at it, it largely doesn't matter:

    a) It's a business decision to invest in cyber-insurance or cyber-security, they picked insurance. As technical people, we like technical solutions, but maybe insurance was the right choice.

    b) If a consumer gets hit by a fraudulent cc charge, they don't eat the charge. They call their cc issuer and the issuer eats the charge. That is in part what your double digit interest rate is paying for.

    c) Everyone gets credit monitoring. If the credit monitoring is not snake oil, then it'll catch cc fraud that's not a direct result of this Target screw up. This may actually be a benefit. People who were dimly aware of how the cc system works will become informed. This is probably a net positive here.

    d) Awareness is raised about POS security; other companies who are running the similarly secured systems may be motivated to fix it. Another net positive.

    The only people getting screwed are Target (for operating a shit system) and/or the cc issuers (for permitting Target to run a shit system).

    1. Re:It largely doesn't matter by Solandri · · Score: 3, Informative

      b) If a consumer gets hit by a fraudulent cc charge, they don't eat the charge. They call their cc issuer and the issuer eats the charge. That is in part what your double digit interest rate is paying for.

      Fraudulent credit card charges are paid for by the merchant who sold the goods to the fraudster. When you contest a charge, the credit card issuer does a chargeback and reverses the charges on the merchant who made that transaction. The merchant then has to try to prove the charge is legit (e.g. produce a signed receipt whose signature matches the cardholder's), or he is out both the merchandise and the money. The issuer pays nothing for fraud, except for small transactions where they may decide to credit the cardholder without reversing the charges on the merchant (the charge is deemed too small and not worth the expense of investigating).

      Your double-digit interest rate pays for other credit card holders who default on their bills. And to line the pockets of the credit card issuer.

  10. I got the notice... by EmagGeek · · Score: 2

    I got the email notice from Target at TWO of my email accounts that my information had been stolen.

    I pored over my financial data and found that I have not used any credit card at a Target store since 2008. So, obviously the breadth and depth of this attack are a lot more extensive than what they are telling us.

    Either that or Target is simply blasting everyone in their email database whether or not they believe the customer's information was stolen, which says that Target still really has no idea whose information was taken and whose wasn't.

    It really is a reflection of the vast incompetency of Target management. They don't know ANYTHING, and have just been firing the shotgun since this whole story broke.

    1. Re:I got the notice... by Abalamahalamatandra · · Score: 2

      I read an article on this recently, it appears that Target contacted both those whose name/address/email had been compromised AND those who use their credit card there during the time period using the same email. They should have split the two.

      So it's likely that your personal information was compromised, but not your credit card number. Be on the lookout for phishing attempts.

  11. Limiting outbound access to servers is too tough by Abalamahalamatandra · · Score: 2

    So, time for me to rant, but on-topic, for a second.

    Everybody knows, I would hope, that best practice is to never allow an Internet-facing server to initiate outbound traffic. This is both because, should the server get compromised, it becomes a new attack vector - as in Code Red or SQL Slammer. This is also because, as in Target's case, it makes it fairly trivial to exfiltrate stolen data.

    But services still persist that require that this very access be enabled. My current case in point: ReCAPTCHA. Google hosts the URL for this service, intended to provide additional security, on a www.google.com URL, which means that, at minimum, I have to allow outbound access from any server hosting a ReCAPTCHA on port 443 to everything Google owns. In practice, of course, it's all but impossible to keep track of Google's address space for firewall purposes, so this means that I have to allow that server out on port 443 to the entire Internet. It's either that, or set up a proxy solution that can do URL filtering and then require the CAPTCHA verification code to use that. Not exactly something your typical smaller company using ReCAPTCHA is apt to do.

    I've talked to competing, for-pay, services, and they require the same thing, despite the fact that they're smaller and have only a few, well-defined networks, but they won't commit to keeping me up-to-date with network changes.

    We really need to start pushing back on this crap. Servers accepting inbound traffic should never need to initiate outbound communications.

  12. Re:Limiting outbound access to servers is too toug by trybywrench · · Score: 3, Interesting

    Unless I'm reading it wrong you're basically disabling webservices like making a SOAP call to a third party on behalf of the connecting user-agent. That's a non-starter for just about all companies that have at least one business partner.

    --
    I came to the datacenter drunk with a fake ID, don't you want to be just like me?
  13. Re:Crime backfiring: card numbers are worthless. by jandrese · · Score: 2

    They spent months selling them already. The guys who did this have already made out like bandits.

    --

    I read the internet for the articles.