Cisco Talos

August 4, 2017

THREAT RESEARCH

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 specifically crafted JPEG 2000 f…

June 29, 2017

GOVERNMENT

Unpacking the New Ransomware Attack

You didn’t think WannaCry was the end of the ransomware story, did you? This week, a new ransomware exploit began sweeping Europe and apparently made its way into the United States in a matter of hours. Although many press accounts identified the malware as Petya, Cisco’s Talos threat analysis team…

June 19, 2017

THREAT RESEARCH

Vulnerability Spotlight: Multiple Foscam C1 Vulnerabilities Come in to Focus

Executive Summary The Foscam C1 is a webcam that is marketed for use in a variety of applications including home security monitoring. As an indoor webcam, it is designed to be set up inside of a building and features the ability to be accessed remotely via a web interface or from within a mobile app…

June 14, 2017

THREAT RESEARCH

Deep dive in Lexmark Perceptive Document Filters Exploitation

This post authored by Marcin Noga with contributions from Nick Biasini Introduction Talos discovers and releases software vulnerabilities on a regular basis. We don’t always publish a deep technical analysis of how the vulnerability was discovered or its potential impact. This blog will cover…

May 25, 2017

THREAT RESEARCH

Samba Vulnerability: Dancing Its Way to a Network Near You

Overview Today, a new vulnerability affecting the widely used Samba software was released. Samba is the SMB/CIFS protocol commonly used in *NIX operating systems. CVE-2017-7494 has the potential to impact many systems around the world. This vulnerability could allow a user to upload a shared library…

January 27, 2017

THREAT RESEARCH

Matryoshka Doll Reconnaissance Framework

This post authored by David Maynor & Paul Rascagneres with the contribution of Alex McDonnell and Matthew Molyett Overview Talos has identified a malicious Microsoft Word document with several unusual features and an advanced workflow, performing reconnaissance on the targeted system to avoid s…

January 20, 2017

THREAT RESEARCH

Vulnerability Spotlight: Adobe Acrobat Reader DC jpeg Decoder Vulnerability

Discovered by Aleksandar Nikolic of Cisco Talos Overview Talos is disclosing TALOS-2016-0259 / CVE-2017-2791 an uninitialized memory vulnerability in Adobe Acrobat Reader DC. Adobe Acrobat Reader is one of the largest and well known PDF readers available today. This particular vulnerability is asso…

January 18, 2017

THREAT RESEARCH

Without Necurs, Locky Struggles

This post authored by Nick Biasini with contributions from Jaeson Schultz Locky has been a devastating force for the last year in the spam and ransomware landscape. The Locky variant of ransomware has been responsible for huge amounts of spam messages being sent on a daily basis. The main driver beh…

November 28, 2016

THREAT RESEARCH

Cerber Spam: Tor All the Things!

This post authored by Nick Biasini and Edmund Brumaghin with contributions from Sean Baird and Andrew Windsor. Executive Summary Talos is continuously analyzing email based malware always looking at how adversaries change and the new techniques that are being added on an almost constant basis. Recen…