The Trojan of the Month Award goes to: Avril Sparrowhawk CWIH8974 PAYMENT RECEIVED

I just got a bit of malware spam: “CWIH8974 PAYMENT RECEIVED” / “Avril Sparrowhawk [Avril.Sparrowhawk@lescaves.co.uk]”

This fake financial spam does not come from Les Caves de Pyrene but is instead a simple forgery with a malicious attachment. How did I know it was spam? I don’t buy wine. 🙂

If you receive this e-mail, delete it immediately and contact your IT Support company. Do not open the attachment(s).

virusThe attached file is a malicious document “CWIH8974.doc” which has a low detection rate. There are likely other variants of this virus going around but in the cases we’ve seen it downloads a malicious executable file from.

The virus itself allows the hacker to compromise the web browser so that when the user tries to log in to their Internet Banking, the details are leaked to the hacker who attempts to withdraw funds from the user’s bank account.

From: Avril Sparrowhawk [Avril.Sparrowhawk@lescaves.co.uk]
Date: 22 December 2015 at 11:14
Subject: CWIH8974 PAYMENT RECEIVED

Good afternoon

Thanks very much for your payment we recently from you, however there was a missed invoice. Can you just confirm this will be included in the next payment run, or whether there were any queries with this particular invoice?

I have attached the invoice for your reference.

Kind regards
Avril

Avril Sparrowhawk
Credit Controller
Les Caves De Pyrene
Pew Corner
Old Portsmouth Road
Artington
Guildford
GU3 1LP

‘ +44 (0)1483 554784
6 +44 (0)1483 455068

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.

Current Virus total detections: Payload Security Hybrid analysis shows it downloads a Dridex banking Trojan from secure.novatronica.com/786h8yh/87t5fv.exe which is the same payload as today’s slightly earlier malspam run.

lescaves.co.uk / Les Caves De Pyrene 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.

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.

What can be infected by this
At this time, these only infect windows computers.
They do not affect a Mac, IPhone, IPad, Blackberry, Windows phone or Android phone. The malicious word or excel file can open on any device with an office program installed, and potentially the macro will run on Windows or Mac or any other device with Microsoft Office installed.

BUT the downloaded malware that the macro tries to download is windows specific, so will not harm, install or infect any other computer except a windows computer. You will not be infected if you do not have macros enabled in Excel or Word. These Macros do not run in Open Office, Libre Office, Word Perfect or any other office program that can read Word or Excel files.

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.

DO NOT enable editing mode or enable macros

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