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SYNful Knock Scanner

This post was authored by William McVey. Update 9/23: We updated the tool to version 1.0.1 Talos is constantly researching the ways in which threat actors are evolving to exploit systems. Recently, a piece of persistent malware coined as “SYNful Knock” was discovered on Cisco routers. While this malware attack is not a vulnerability, as […]

September 23, 2015 • 3 min read
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Vulnerability Spotlight: Microsoft Windows CDD Font Parsing Kernel Memory Corruption

Discovered by Andrea Allievi and Piotr Bania of Cisco Talos.   Talos, in conjunction with Microsoft’s security advisory issued on September 8th, is disclosing the discovery of a memory corruption vulnerability within the Microsoft Windows CDD Font Parsing Kernel Driver. This vulnerability was initially discovered by the Talos and reported in accordance with responsible disclosure policies to Microsoft. Please […]

September 8, 2015 • 1 min read
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Microsoft Patch Tuesday – September 2015

Today, Microsoft has released their monthly set of security bulletins designed to address security vulnerabilities within their products. This month’s release sees a total of 12 bulletins released which address 55 CVEs. Five bulletins are rated “Critical” this month and address vulnerabilities in Edge, Graphics Component, Internet Explorer, Journal, and Office. The other seven bulletins […]

September 8, 2015 • 5 min read
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Malware Meets SysAdmin – Automation Tools Gone Bad

This post was authored by Alex Chiu and Xabier Ugarte Pedrero. Talos recently spotted a targeted phishing attack with several unique characteristics that are not normally seen. While we monitor phishing campaigns used to distribute threats such as Dridex, Upatre, and Cryptowall, targeted phishing attacks are more convincing because the format of the message is personalized […]

August 25, 2015 • 10 min read
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Microsoft Internet Explorer Out of Band Advisory

Today an out of band advisory was released by Microsoft to address CVE-2015-2502. This vulnerability is addressed by MS15-093. MS15-093 address a memory corruption vulnerability in Internet Explorer versions 7, 8, 9, 10, and 11. This affects all currently supported versions of Windows, including Windows 10. This advisory is rated critical. An attacker can craft […]

August 18, 2015 • 1 min read
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Talos Identifies Multiple Memory Corruption Issues in Quicktime

Update 2015-08-21: This post has been updated to reflect an additional advisory released on August 20. Talos, in conjunction with Apple’s security advisories issued on August 13 and August 20, has released six advisories for vulnerabilities that Talos found in Apple Quicktime. In accordance with our Vendor Vulnerability Reporting and Disclosure policy, these vulnerabilities have been […]

August 13, 2015 • 2 min read
Blog post

Microsoft Patch Tuesday – August 2015

Microsoft has released their monthly set of security bulletins designed to address security vulnerabilities within their products. This month’s release sees a total of 14 bulletins released which address 58 CVEs. Four bulletins are rated “Critical” this month and address vulnerabilities in Internet Explorer, Graphics Component, Office, and Edge. The other ten bulletins are rated “Important” […]

August 11, 2015 • 5 min read