When combining exploits for added effect goes wrong
Introduction Since public disclosure in April 2017, CVE-2017-0199 has been frequently used within malicious Office documents. The vulnerability allows attackers to include Ole2Link objects within RTF documents to launch remote code when HTA applications are opened and parsed by M
WinDBG and JavaScript Analysis
This blog was authored by Paul Rascagneres. Introduction JavaScript is frequently used by malware authors to execute malicious code on Windows systems because it is powerful, natively available and rarely disabled. Our previous article on .NET analysis generated much interest r
Microsoft Patch Tuesday - August 2017
Microsoft has released its monthly set of security advisories for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 48 new vulnerabilities with 25 of them rated critical, 21 rated important, and 2 rated modera
Vulnerability Spotlight: Adobe Reader DC Parser Confusion
Parser vulnerabilities in common software packages such as Adobe Acrobat Reader pose a significant security risk to large portions of the internet. The fact that these software packages typically have a large footprints often gives attackers a broad attack surface they can potent
On Conveying Doubt
This post was authored by Matt Olney. Typically, Talos has the luxury of time when conducting research. We can carefully draft a report that clearly lays out the evidence and leads the reader to a clear understanding of our well supported findings. A great deal of time is spent
Threat Round-up for July 28 - August 4
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 28 and August 04. As with previous round-ups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlightin
Vulnerability Spotlight: Kakadu SDK Vulnerabilities
Vulnerabilities discovered by Aleksandar Nikolic and Tyler Bohan of Cisco Talos. Today, Talos is disclosing multiple vulnerabilities that have been identified in the Kakadu JPEG 2000 SDK. The vulnerabilities manifest in a way that could be exploited if a user opens a specificall
Taking the FIRST look at Crypt0l0cker
This post is authored by Matthew Molyett. Executive Summary In March, Talos reported on the details of Crypt0l0cker based on an extensive analysis I carried out on the sample binaries. Binaries -- plural -- because, as noted in the original blog, the Crypt0l0cker payload levera
Vulnerability Spotlight: EZB Systems UltraISO ISO Parsing Code Execution Vulnerability
Discovered by Piotr Bania of Cisco Talos. Today, Talos is releasing details of a new vulnerability discovered within the EZB Systems UltraISO ISO disk image creator software. TALOS-2017-0342 (CVE-2017-2840) may allow an attacker to execute arbitrary code remotely on the vulnerab