Online advertising is an integral part of today’s internet experience. In many ways, ads are the lifeblood behind many websites, providing the necessary funding to keep sites running, as well as supporting the creation of new content. While it may appear as though the ads that are displayed are just a component of the site […]
The light is green! But is it safe to go? Abusing users’ faith in HTTPS
This post was authored by Anna Shirokova and Ivan Nikolaev John Smith had a lot of friends and liked to travel. One day he got an email that read: "Money has been sent...
Talos ShadowGate Take Down: Global Malvertising Campaign Thwarted
Yet another example of how organizations work together to stop threats affecting users around the globe.
Threat Spotlight: Spin to Win…Malware
This post was authored by Nick Biasini with contributions from Tom Schoellhammer and Emmanuel Tacheau The threat landscape is ever changing and adversaries are always working to find more efficient ways to compromise users. One of the many ways that users are driven to malicious content is through malicious advertisements known as malvertising. Talos has […]
Threat Spotlight: The Imperiosus Curse –A Tool of the Dark Arts
Authors: William Largent, Jaeson Schultz, Craig Williams. Special thanks to Richard Harman for his contributions to this post. As consumers, we are constantly bombarded by advertising, especially on the World Wide Web. There is a lot of money to be made either pushing Internet traffic, or displaying ads to consumers. Total annual Internet advertising revenue from […]
Bad Browser Plug-ins Gone Wild: Malvertising, Data Exfiltration, and Malware, Oh my!
This post was authored by Fred Concklin, William Largent, Martin Rehak, Michal Svoboda, and Veronica Valeros. During an average day of surfing the web via computer, smartphones, and tablets, we...
Be More Effective, Be More Efficient: The Mantra for Many Adversaries in 2014
Adversaries are committed to continually refining or developing new techniques to conceal malicious activity, decrease their reliance on other techniques that may be more detectable, and become increasingly more efficient and effective in their attacks. Below are just three examples—explored in detail in the newly released Cisco 2015 Annual Security Report—of how malicious actors met […]
Cisco Email Security Stays Ahead of Current Threats by Adding Stronger Snowshoe Spam Defense, AMP Enhancements, and More …
If you read the recently released Cisco Annual Security Report, you will have learned how spammers have adopted a “Snowshoe” strategy, using a large number of IP addresses with a low message volume per IP address, to send spam, preventing some spam systems from sinking the spam. This yielded a 250 percent increase in spam […]