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!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags securitysocial 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

Cool Tech

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Breitling Superocean Heritage Chronographe 44

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?