An email saying Tesco is giving you a chance to shop for free pretending to come from Tesco.com <email@example.com> is one of the latest phishing emails trying to steal your Tesco bank details. This one is a bit worse than others because they try to bypass the Two Factor identity checks that many banks are now using.
This one only wants your personal details, Tesco log in details and your credit card and bank details. Many of them are also designed to specifically steal your email, Facebook and other social network log in details as well. If you are unwise enough to fill in the personal details and security questions, there is a very high likelihood that information could be used to compromise any other account or log in ANYWHERE on the net. Most people use the same set of security questions and answers everywhere. I mean how many different answers can there be to: ” what was your first school” or ” where did you meet your wife/husband/girlfriend”
Please read our How to protect yourselves page for simple, sensible advice on how to avoid being infected by this sort of socially engineered malware.
The original email looks like this It will NEVER be a genuine email from Tesco or any other company so don’t ever click the link in the email. If you do it will lead you to a website that looks at first glance like the genuine Tesco bank website but you can clearly see in the address bar, that it is fake. Some versions of this phish will ask you fill in the html ( webpage) form that comes attached to the email.
Tesco is giving you a chance to shop for free this season at any of our tesco outlets or online by giving out free tesco vouchers.
This offer is only for Tesco Savings users and it will be on until the 29th of February, 2016.
To Qualify, follow the link below and input all the details required
Click here to Register
The Tesco Personal Finance Team
The link in this example goes to http://mailtech.com/our.htm where you are redirected to http://firmagregor.pl/css/e4rth/authUID.html?ssl=yes
Update 8 February 2016: we are seeing loads more of these today with links going to lots of different sites, some still live, but some are giving 404 not found. Any live ones are reported as found and should be blocked in IE smart filer & Chrome/Firefox browser safety as well.
Note: some of the screen shots are from this new phish, but others have been re-used from older versions that I have already blogged about, but are identical except for the site name in the URL bar
If you follow that link you see a webpage looking like:
Then you get a page asking to verify your mobile phone number
We don?t recognise this computer
To continue, we need to send you a text message with a One Time Access Code which will be valid for 10 minutes.
Then this comes up. I can’t honestly believe that the phishers have set up the site to actually send a SMS to your phone with a one time security code. Any 5 digit number entered in the box gets you to the next page
Then you get a page asking for password and Security number
After you fill in your Security number and password you get a page looking like this, where the phishers try to validate your details to make sure that you are entering “genuine ” information. They make sure that the bank account numbers have the correct number of digits and that the credit card numbers have the correct number of digits and format.
Then they send you to this page and eventually it auto redirects you to the genuine Tesco bank site
All of these emails use Social engineering tricks to persuade you to open the attachments that come with the email. Whether it is a message saying “look at this picture of me I took last night” and it appears to come from a friend or is more targeted at somebody who regularly is likely to receive PDF attachments or Word .doc attachments or any other common file that you use every day. Or whether it is a straight forward attempt, like this one, to steal your personal, bank, credit card or email and social networking log in details. Be very careful when unzipping them and make sure you have “show known file extensions enabled“, And then look carefully at the unzipped file. If it says .EXE then it is a problem and should not be run or opened.