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This post was authored by Alex Chiu & Angel Villegas. Overview Banking and sensitive financial information is a highly coveted target for attackers because of the high value and obvious financial implications. In the past year, a large...
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between August 21 and August 27. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've obs...
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between August 7 and August 14. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've obse...
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov 29 and Dec 6. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed b...
There is no question that unwanted email is a source of annoyance. It is also the biggest source of cyber threats. In fact, just last month, spam accounted for 85 percent of all email sent. Plus, according to Verizon
It has been 10 years since the discovery of Skimer, first malware specifically designed to attack automated teller machines (ATMs). At the time, the learning curve for understanding its functionality was rather steep and analysis required specific kn...
One year ago, Cisco Talos first disclosed the existence of VPNFilter on May 23, 2018. The malware made headlines across the globe, as it was a sophisticated piece of malware developed by a nation state, infecting half a million devices, and poised to...
This blog was authored by Danny Adamitis, David Maynor, and Kendall McKay Executive summary Cisco Talos assesses with moderate confidence that a campaign we recently discovered called
To protect your data, you must understand the traffic on your network. This task has become even more challenging with widespread use of the Transport Layer Security (TLS) protocol, which inhibits traditional network security monitoring techniq...
Nick Biasini and Edmund Brumaghin authored this blog post with contributions from Andrew Williams. Introduction to JasperLoader Malware loaders are playing an increasingly important role in malware distribution. They give adversar...
In November 2018, Cisco Talos discovered an attack campaign, called DNSpionage, in which threat actors created a new remote administrative tool that supports HTTP and DNS communication with the attackers
How a revolutionary technology was usurped for evil, and what we can do about it Since its inception, email has gone from a novelty, to a necessity, to at times a nuisance, and now, to downright nefarious.
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