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Showing posts with label phishing. Show all posts
Showing posts with label phishing. Show all posts

Thursday, February 16, 2012

US Agency Suspending Jotform.com Domain, What You Need To Know Now

Jotform is an online form creation service that can be used by free and paying customers to create online forms in an easy to use what you see is what you get interface. A short blog post by Jotform co-founder Aytekin Tank today revealead that an unnamed US government agency has “temporarily suspended” the jotform.com domain. The announcement itself was posted on the company’s jotform.net domain.

Tank did not go into further details in the short post first, but later on posted two updates that suggested that user generated content was the cause for the domain suspension.

Commenters suggested that it had to do with a phishing attack on a South African bank that used forms on the jotform domain to steal personal information from the bank’s users.

jotform

Tank also mentioned that forms may not be working anymore if they are pointing to the com address. He suggested to change the domain extension to .net instead to make them work again if that is the case. A knowledge base article is available to aid users who have dozens or even hundreds of forms that need to be changed.

Jotform customers should have received emails by now that inform them about the issue.

Some issues have not been addressed yet. It is for instance not clear why only the .com domain was suspended and why the .net domain was left untouched. The most likely reason is that the the contents were posted solely on the jotform.com domain.

And then there is the question how this could happen in first place. Was Jotform contacted by the authorities or bank representatives first to take down the contents without domain suspension? Several users who left comments suggested that a DCMA letter to Godaddy, the domain hosting company, was the culprit. This however does not explain Tank’s statement that a US government agency has shut down the domain temporarily.

Facts are scarce at this point in time. The scary thing about this is that this can happen to any website that is hosting user generated contents. Taking down a phishing site, or phishing contents on a site, is a high priority task, considering that more users become victims of the trap the longer the site stays on line.

Jotform customers at this point in time can only change their form’s domain name extensions to get them working again. It is likely that the domain will be up and running again in the coming days.

Update: The jotform.com website is up again. There is still no word about what happened. You can read more about it here on Hacker News

JotForm.com has been suspended by Godaddy for more than 24 hours now. They have disabled the DNS without any prior notice or request. They have told us the domain name was suspended as part of an ongoing law enforcement investigation. In order to resolve the issue, they asked us to contact the officer in charge at U. S. Secret Service.

When I contacted the Secret Service, the agent told me she is busy and she asked for my phone number, and told me they will get back to me within this week. I told them we are a web service with hundreds of thousands of users, so this is a matter of urgency, and we are ready to cooperate fully. I was ready to shutdown any form they request and provide any information we have about the user. Unfortunately, she told me she needs to look at the case which she can do in a few days. I called her many times again to check about the case, but she seems to be getting irritated with me. At this point, we are waiting for them to look into our case.

Our guess is that this is probably about a phishing form. We take phishing very seriously. Our Bayesian phishing filter has suspended 65.000 accounts last year. We have been training it for many years, so it can detect phishing forms with great accuracy. We also take any reports about phishing very seriously and quickly suspend the accounts and let the other party know about it. By the way, we are also very serious about false positives. If we suspend an account accidentally, we will quickly resolve the issue, and apologize.

I believe this can happen to anybody who allows users to create content on the web. So, if you have such business, my recommendation would be to make sure that you can contact your most active users quickly if your domain is disabled. Many of our users are shocked and angry at us. But, many also thanked us for quickly letting them know about the issue by email and providing instructions to continue operating their forms. Since DNS propagation takes some time, many active users were able to switch their forms to the new domain before it went down. We still have not contacted all users, we are sending emails most active users first.



Wednesday, November 30, 2011

Tech Coalition is Formed to Stop Phishing

Phishing emails are a huge problem and one that numerous attempts to rectify have so far failed to achieve.  Now a large group of tech companies have joined forces with a start-up company called Agari to try and stop phishing emails from even reaching your inbox.  Microsoft, Google, AOL, Yahoo! and other firms have all joined forces on the project so they can share information from phishing emails.

This data will be analysed by Agari to see how phishing attacks can be identified and prevented.  The company has actually been in operation since 2009 and helps protect over 1 billion email accounts from these types of attack.  The company already collects data from around 1.5 billion emails a day, though they don’t collect the actual email messages.

Instead the company just passes on malicious URLs in the messages to the relevant companies who’s name is being used in the phishing message.  Google said it expects the new arrangement to benefit Gmail users as more mail senders will now be authenticating email and implementing common phishing blocking policies.

Cnet reported that Daniel Raskin, the vice-president of marketing for Agari said…

“Facebook can go into the Agari console and see charts and graphs of all the activity going on in their e-mail channel (on their domains and third-party solutions) and see when an attack is going on in a bar chart of spam hitting Yahoo.  They receive a real-time alert and they can construct a policy to push out to carriers (that says) when you see this thing happening don’t deliver it, reject it.”

Phishing emails aren’t just a nuisance, they cost businesses millions every year in credit card insurance payouts, a cost which is inevitably passed on in interest charges.  The sophistication of phishing messages, which purport to be from a bank, business or website asking you to log in to confirm your security details, or offering you a fantastic deal that doesn’t really exist, again to get your personal details including those for your credit card.

The simple rule is that no bank, company or website will EVER email you asking you to log in and confirm your details.  Modern web browsers will highlight the actual domain name for the site you are visiting, for example PayPal.com and you can see if you are being diverted to a different domain.  The best rule is that if you receive an email purporting to be from, say Bank of America, then never click on the link.  Instead manually go to the bank or company’s website and log in yourself.

Agari says they have been operating in “stealth” mode for the last few years to as to try not to attract too much attention to their work.  Currently they analyse 50% of all email traffic in the US.  Cnet say…

The company aggregates and analyzes the data and provides it to about 50 e-commerce, financial services and social network customers, including Facebook and YouSendIt, who can then push out authentication policies to the e-mail providers when they see an attack is happening.

This new alliance forms no guarantee that phishing emails will be eradicated, and it is still up to the end user to use caution when opening any suspicious email.


© Mike Halsey (MVP) for gHacks Technology News | Latest Tech News, Software And Tutorials, 2011. | Permalink |
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Wednesday, October 5, 2011

How Much Is A Hacked PayPal Account Worth?

We all know that you can practically buy anything on the Internet, from bulk email accounts over credit card information and even PayPal accounts. Brian Krebs in a post on the Krebs on Security blog sheds some light on the latter. He identified websites were PayPal account data, and sometimes linked email account information, were sold in bulk.

According to his information, PayPal accounts are sold for as little as $50 per 100 unverified accounts. 50 cents per account may not seem like much, but you need to consider that unverified means that the original owner has not linked the account to a bank account or credit card. This limits what can be done with the account (while it is possible to use it to move money, it cannot be used to make purchases if the PayPal balance is not sufficient).

Verified accounts on the other hand start at prices of $2.50 for PayPal accounts with a balance of up to $10, and more if the balance is larger. You see a larger account with a balance of more than 1000 Dollars go for $45 at the site selling those hacked accounts.

hacked paypal accounts

It is rather interesting that the site not only lists the account balance, first name address and type of account but also much of the user’s email address. Registration at the site is closed and only possible by contacting a site operator over ICQ.

Considering that email addresses are listed, it would make sense of PayPal to try and get an account to block all hacked accounts before third parties can use them for illegal activities.

Brian believes that the majority of accounts for sale have been collected via phishing attacks, but that trojans on user computers have also been used considering that some of the PayPal accounts are sold with linked email account log ins.

It feels kinda strange that a site like this can operate for a relatively long time without being taken down by the authorities. I won’t link directly to the site, but you find the link and a sister site mentioned in Brian’s article.

I personally would have expected the accounts to be sold at higher prices. This can either mean that demand is not high, or that the site operators have access to a lot of hacked PayPal accounts.

What’s your take on this?


© Martin Brinkmann for gHacks Technology News | Latest Tech News, Software And Tutorials, 2011. | Permalink |
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