Computer Support Services fake invoice with subject of Computer Support Services JJBCL0104291 pretending to come from Computer Support Services [Bishop.firstname.lastname@example.org] < random names @ blacjj.co.uk > is another one from the current bot runs which try to drop cryptolocker, ransomware and loads of other malware on your computer. They are using email addresses and subjects that will 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.
The first few we received were addressed to Dear Carol, but subsequent ones were addressed to Dear < Your email address >
This looks like a revised version of the Broad Oak Toiletries campaign and they have changed the “victim” company to JJ Black Consultancy
Almost all of these have a password stealing component, with the aim of stealing your email or FTP ( web space) log in credentials. Many of them are also designed to specifically steal your facebook and other social network log in details.
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.
email looks like
Dear Carole We have created a new invoice for you. To view your statement including a pdf of this invoice please download the attachment.
Description: 1/4/14 – 30/4/14
Account Number: 01706454
Sort Code: 400822
Account Name: Computer Support Services
Kind Regards, Jennifer Eden Computer Support Services T: 0161 8505080 F: 0161 929 0049 W: www.blackjj.co.uk
13 May 2014 Report_ID30D74D9365D2AC998DC.zip (63 kb) : Extracts to invoice_65476859394857_pdf.exe Current Virus total detections: 0/52
This Computer Support Services fake invoice is another one of the spoofed icon files that unless you have “show known file extensions enabled“, will look like a proper PDF file instead of the .exe file it really is, so making it much more likely for you to accidentally open it and be infected.
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. 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.