Most malspam contains a malicious URL these days, not file attachments

silversurfer

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Most malicious email spam (malspam) sent in the first half of the year has contained links to malicious files, rather than file attachments, according to telemetry gathered by cyber-security firm Proofpoint.

More precisely, 85% of all malspam sent in Q2 2019 (April, May, and June) contained a link to a malicious file download, rather than the actual malicious file attached to the email.The Q2 number continues a Q1 trend, where malicious URLs also dominated as the favorite way of distributing malware via email spam.

If the majority of malspam content sent out these days leverages malicious links, this means operators are getting higher clickthroughs and infections when compared to the classic technique of attaching files to emails.

"While the reason for the continued dominance of URLs may be due to a range of factors, it is likely that most end users have been conditioned to be suspicious of attachments in unsolicited email," Proofpoint said.
"URLs, on the other hand, are increasingly common in business email as we regularly receive notifications of shared files and collaboration updates via email as organizations move to the cloud," it added.

 

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