Trickbot are being very busy today. This is the 4th version, which is very different to the previous 3. At least I think it is Trickbot. The email delivery & registration matches recent Trickbot actors, but the actual malware delivery is very different
An email with the subject of IMPORTANT : Advice of Service Charge pretending to come from Royal Bank of Scotland but actually coming from a look-a-like domain <Gary.Terry@rbsprotected.com> with a malicious word doc attachment is today’s latest spoof of a well known company, bank or public authority delivering Trickbot banking Trojan
They are using email addresses and subjects that will scare or entice a user to read the email and open the attachment. A very high proportion are being targeted at small and medium size businesses, with the hope of getting a better response than they do from consumers.
Remember many email clients, especially on a mobile phone or tablet, only show the Name in the From: and not the bit in <domain.com >. That is why these scams and phishes work so well.
Royal Bank of Scotland has not been hacked or had their email or other servers compromised. They are not sending the emails to you. They are just innocent victims in exactly the same way as every recipient of these emails.
What has happened is that the criminals sending these have registered various domains that look like genuine bank domains. Normally there are 3 or 4 newly registered domains that imitate Royal Bank of Scotland or some message sending service that can easily be confused with a legitimate organisation in some way that send these
As usual they are registered via Godaddy as registrar and the emails are sent via host Europe 22.214.171.124
The email looks like:
From: Royal Bank of Scotland <Gary.Terry@rbsprotected.com>
Date: Wed 19/07/2017 21:03
Subject: IMPORTANT : Advice of Service Charge
Advice of Service Charge for the period 7 May 2017 to 31 June 2017
The Service Charge accrued on your account is £2,206.52.
This amount will be deducted from your account on July 21 2017.
Basis of Charge
The charge is calculated as a pro rata fee (at £3.62.00 per quarter): £2,206.52
Service Charge to be applied: -£2,206.52
We have identified a bank systems error, which has regrettably altered the quarterly service charge you currently pay. You might have recently received a Service Charge Advice indicating a substantially higher quarterly fee and we would like to offer our sincere apologies if this is the case.
This problem has been rectified and the amount indicated on the advice will not be debited to your bank account. I would like to stress that the problem is in no way your fault and is purely due to a technical problem within The Royal Bank of Scotland plc.
WE HAVE TAKEN THE OPPORTUNITY TO REVIEW SERVICE CHARGES LEVIED ON YOUR ACCOUNT AND ARE PLEASED TO ADVISE YOU THAT WE WILL, WITH THE EFFECT FROM 1ST AUGUST 2017, BE MARKING YOUR ACCOUNT EXEMPT OF SERVICE CHARGES IN THE FUTURE. FOR MORE DETAILS PLEASE CHECK ATTACHED DOCUMENT.
Once again please accept my apologies for any inconvenience caused by this technical problem.
Commercial Banking, Royal Bank of Scotland plc
CONFIDENTIALITY NOTICE:The contents of this email message and any attachments are intended solely for the addressee(s)and may contain confidential and/or privileged information and may be legally protected from disclosure. If you are not the recipient of this message or their agent, or if this message has been addressed to you in error, please immediately alert the sender by reply email and then delete this message and any attachments. If you are not the recipient, you are hereby notified that any use, dissemination, copying, or storage of this message or its attachments is strictly prohibited.
The word doc looks like this
SecureDocument.doc Current Virus total detections: Payload Security doesn’t show any direct downloads but does show a .js file dropped or created from the macro ( VirusTotal) ( Payload Security) which shows a connection to comos.nl/gate.php?ff1 which just gives encrypted or encoded txt which eventually somehow drops 2cd8.exe ( VirusTotal) (Payload Security)
|126.96.36.199||malta2463.startdedicated.com||Hoest||North Rhine-Westphalia||DE||AS8972 Host Europe GmbH|
Received: from malta2463.startdedicated.com ([188.8.131.52]:52670 helo=rbsprotected.com)
by knight.knighthosting.co.uk with esmtp (Exim 4.89)
for firstname.lastname@example.org; Wed, 19 Jul 2017 14:11:48 +0100
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; s=key; d=rbsprotected.com;
Received: by rbsprotected.com id hduv84rhdmkk for <email@example.com>; Wed, 19 Jul 2017 16:03:24 -0400 (envelope-from <Gary.Terryfirstname.lastname@example.org>)
Date: Wed, 19 Jul 2017 16:03:24 -0400
Subject: IMPORTANT : Advice of Service Charge
From: “Royal Bank of Scotland” <Gary.Terry@rbsprotected.com>
All the alleged senders, companies, names of employees, phone numbers, amounts, reference numbers etc. mentioned in the emails are all innocent and are just picked at random. Some of these companies will exist and some won’t. Don’t try to respond by phone or email, all you will do is end up with an innocent person or company who have had their details spoofed and picked at random from a long list that the bad guys have previously found . The bad guys choose companies, Government departments and other organisations with subjects that are designed to entice you or alarm you into blindly opening the attachment or clicking the link in the email to see what is happening.
This email attachment contains what appears to be a genuine word doc or Excel XLS spreadsheet with either a macro script or an embedded OLE object that when run will infect you.
Modern versions of Microsoft office, that is Office 2010, 2013, 2016 and Office 365 should be automatically set to higher security to protect you.
By default protected view is enabled and macros are disabled, UNLESS you or your company have enabled them. If protected view mode is turned off and macros are enabled then opening this malicious word document will infect you, and simply previewing it in windows explorer or your email client might well be enough to infect you. Definitely DO NOT follow the advice they give to enable macros or enable editing to see the content.
Most of these malicious word documents either appear to be totally blank or look something like these images when opened in protected view mode, which should be the default in Office 2010, 2013, 2016 and 365. Some versions pretend to have a digital RSA key and say you need to enable editing and Macros to see the content. Do NOT enable Macros or editing under any circumstances.
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. Also please read our post about word macro malware and how to avoid being infected by them
Be very careful with email attachments. All of these emails use Social engineering tricks to persuade you to open the attachments that come with the email. It might be a simple message saying “look at this picture of me I took last night” that appears to come from a friend. It might be a scare ware message that will make you open the attachment to see what you are accused of doing. Frequently it is more targeted at somebody ( small companies etc.) who regularly receive PDF attachments or Word .doc attachments or any other common file that you use every day, for example an invoice addressed to email@example.com.
The basic rule is NEVER open any attachment to an email, unless you are expecting it. Now that is very easy to say but quite hard to put into practice, because we all get emails with files attached to them. Our friends and family love to send us pictures of them doing silly things, or even cute pictures of the children or pets. Many of us routinely get Word, Excel or PowerPoint attachments in the course of work or from companies that we already have a relationship with.
Never just blindly click on the file in your email program. Always save the file to your downloads folder, so you can check it first. A lot of malicious files that are attached to emails will have a faked extension. That is the 3 letters at the end of the file name. Unfortunately windows by default hides the file extensions so you need to Set your folder options to “show known file types. Then when you unzip the zip file that is supposed to contain the pictures of “Sally’s dog catching a ball”, an invoice or receipt from some company for a product or service or receive a Word doc or Excel file report that work has supposedly sent you to finish working on at the weekend, you can easily see if it is a picture or document & not a malicious program. If you see JS or .EXE or .COM or .PIF or .SCR or .HTA .vbs, .wsf , .jse .jar at the end of the file name DO NOT click on it or try to open it, it will infect you.
With these malformed infected word, excel and other office documents that normally contain a vba macro virus, the vital thing is do not open any office document direct from your email client or the web. Always save the document to a safe location on your computer, normally your downloads folder or your documents folder and scan it with your antivirus. Many Antiviruses do not natively detect vba macro-viruses in real time protection and you need to enable document or office protection in the settings. Do not rely on your Anti-Virus to immediately detect the malware or malicious content. DO NOT enable editing mode or enable macros
All modern versions of word and other office programs, that is 2010, 2013, 2016 and 365, should open all Microsoft office documents that is word docs, excel files and PowerPoint etc that are downloaded from the web or received in an email automatically in “protected view” that stops any embedded malware or macros from being displayed and running. Make sure protected view is set in all office programs to protect you and your company from these sorts of attacks and do not over ride it to edit the document until you are 100% sure that it is a safe document. If the protected mode bar appears when opening the document DO NOT enable editing mode or enable macros the document will look blank or have a warning message, but will be safe.
Be aware that there are a lot of dodgy word docs spreading that WILL infect you with no action from you if you are still using an out dated or vulnerable version of word. This is a good reason to update your office programs to a recent version and stop using office 2003 and 2007. Many of us have continued to use older versions of word and other office programs, because they are convenient, have the functions and settings we are used to and have never seen a need to update to the latest super-duper version. The risks in using older version are now seriously starting to outweigh the convenience, benefits and cost of keeping an old version going.
I strongly urge you to update your office software to the latest version and stop putting yourself at risk, using old out of date software.