Open this malware or I'll sue you

The latest social engineering trick to get victims to open malicious email attachments accuses them of being spammers and threatens to sue them if they don't stop.

It's all in an attempt to get targets to open up the zip attachment by telling them it contains evidence of their spamming. Actually it's an .exe file that infects the machine but displays like a document, according to the Websense Security Labs Blog.

MORE: Bigger isn't better when it comes to social engineering attacks

The attachment installs a downloader Trojan that copies itself to the system path so it executes when the system boots up. It connects to remote servers to download specific exploit files. The blog says the current attacks could contain other variants of the Trojan as attachments.

The new attack cropped up Monday in WebSense's ThreatSeeker network that gathers data about malicious email campaigns. The emails are dressed up to look like they come from real businesses that is upset because the recipient has been spamming them. "The emails even formally claims that legal action will be taken because of the spam you have sent," says the blog.

The blog includes an image containing the text of one such email: "Hello. Your email is sending spam messages! If you don't stop sending spam, we will be impelled to sue you! We've attached a scanned copy of the document assembled by our security service to this letter. Please carefully read through the document and stop sending spam messages. This is the final warning!

Subject lines include "You are sending ad messages", "We are going to sue you", "This is the final warning", "We've sent you a copy of a complaint" and "A message from our security service".

Read more about wide area network in Network World's Wide Area Network section.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags social engineeringwebsenseantispamanti-malware

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Tim Greene

Network World
Show Comments

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Aysha Strobbe

Microsoft Office 365/HP Spectre x360

Microsoft Office continues to make a student’s life that little bit easier by offering reliable, easy to use, time-saving functionality, while continuing to develop new features that further enhance what is already a formidable collection of applications

Michael Hargreaves

Microsoft Office 365/Dell XPS 15 2-in-1

I’d recommend a Dell XPS 15 2-in-1 and the new Windows 10 to anyone who needs to get serious work done (before you kick back on your couch with your favourite Netflix show.)

Maryellen Rose George

Brother PT-P750W

It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?