Spam in 2018: Beware ZIP, .DOC, .XLS, .PDF, and .7Z File Attachments

New security statistics reveal that spam is one of the most common methods used to distribute malware to potential victims. Because of the high click rate, malicious email messages continue to be a preferred technique among cybercriminals.

F-Secure researchers recently revealed that spam remains the most common method of spreading malicious URLs, scams and malware more than 40 years after the first email spam was sent. As explained by says Päivi Tynninen, Threat Intelligence Researcher at F-Secure:

Email spam is once again the most popular choice for sending out malware. Of the spam samples we’ve seen over spring of 2018, 46% are dating scams, 23% are emails with malicious attachments, and 31% contain links to malicious websites.”

During the past few years, it’s gained more popularity against other vectors, as systems are getting more secure against software exploits and vulnerabilities,” the researcher added.

What Do the New Spam Statistics Reveal?

The new statistics indicates that spam email click rates have increased from 13.4% in the second half of 2017, to 14.2% in the first half of 2018. Why does spam continue to be such a successful method deployed for malware distribution? Browser and OS security has definitely improved and as a result, it is more difficult for threat actors to use exploit kits and security flaws. This has led to spam being the most preferred infection method for many malware operators.

A Kaspersky Lab report for 2017 revealed what were the most common scam topics included in spam campaigns. As usual, and as is the case with the most common online scams in the wild, spam emails rely on hot topics to successfully trick potential victims, and this was indeed the case last year.

Some of the most common topics in spam messages in (Read more...)

*** This is a Security Bloggers Network syndicated blog from How to, Technology and PC Security Forum | SensorsTechForum.com authored by Milena Dimitrova. Read the original post at: https://sensorstechforum.com/spam-2018-file-attachments/