New IDA Pro plugin provides TileGX support

By Jonas Zaddach Overview Cisco Talos has a new plugin available for IDA Pro that provides a new disassembler for TileGX binaries. This tool should assist researchers in reverse-engineering threats in IDA Pro that target TileGX. We started developing this tool after the VPNFilter campaign last...

How Tortoiseshell created a fake veteran hiring website to host malware

By Warren Mercer and Paul Rascagneres with contributions from Jungsoo An. Introduction Cisco Talos recently discovered a threat actor attempting to take advantage of Americans who may be seeking a job, especially military veterans. The actor, previously identified by Symantec as Tortoiseshell,...

Threat Roundup for August 2 to August 9

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Aug. 2 and Aug. 9. 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 by highlighting key behavioral characteristics,...

Threat Roundup for June 21 to June 28

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between June 21 and June 28. 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 by highlighting key behavioral characteristics...

Threat Roundup for June 7 to June 14

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between June 07 and June 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 observed by highlighting key behavioral characteristics...

Critical vulnerability in ManageEngine could lead to file creation, dozens of other vulnerabilities disclosed by Talos to start 2024

Cisco Talos Vulnerability Research team has disclosed dozens of vulnerabilities over the past month, including more than 30 advisories in GTKWave and a critical vulnerability in ManageEngine OpManager. Cisco ASIG also recently discovered an information disclosure vulnerability in...

What the continued escalation of tensions in the Middle East means for security

Cisco Talos works with many organizations around the world, monitoring and protecting against sophisticated threats every day. As such, we are watching the current state of events in the Middle East very closely for our customers and partners who may be impacted by the ongoing situation. We are...

The many vulnerabilities Talos discovered in SOHO and industrial wireless routers post-VPNFilter

Since the discovery of the widespread VPNFilter malware in 2018, Cisco Talos researchers have been researching vulnerabilities in small and home office SOHO and industrial routers. During that research, Talos has worked with vendors to report and mitigate these vulnerabilities, totaling 141...

Vulnerability Spotlight: Remote code execution vulnerability in Microsoft Excel

Marcin “Icewall” Noga of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered a remote code execution vulnerability in Microsoft Excel. Microsoft disclosed this bug as part of their monthly security update Tuesday. This vulnerability exists in the...

Hiding in Plain Sight

This blog was written by Jon Munshaw and Jaeson Schultz. Cisco Talos is continually working to ensure that our threat intelligence not only accounts for the latest threats but also new versions of old threats, such as spam. This often means pursuing cybercriminals wherever they congregate. Howeve...

Vulnerability Spotlight: Multiple Remote Vulnerabilities In Insteon Hub PubNub

Vulnerabilities discovered by Claudio Bozzato of Cisco Talos Talos is disclosing twelve new vulnerabilities in Insteon Hub, ranging from remote code execution, to denial of service. The majority of the vulnerabilities have their root cause in the unsafe usage of the strcpy function, leading eithe...

Vulnerabilities in ProcessMaker, WebFOCUS, and OpenFire Identified and Patched

Today, Talos is disclosing several vulnerabilities that have been identified by Portcullis in various software products. All four vulnerabilities have been responsibly disclosed to each respective developer in order ensure they are addressed. In order better protect our customers, Talos has also...

Cisco Coverage for Adylkuzz, Uiwix, and EternalRocks

When the WannaCry attack was launched a little over a week ago, it was one of the first large scale attacks leveraging the data that was leaked by the Shadow Brokers. At the time the real concern was how quickly we would begin to see other threats leverage the same vulnerabilities. Over the past...

Watchbog and the Importance of Patching

By Luke DuCharme and Paul Lee. What Happened? Cisco Incident Response CSIRS recently responded to an incident involving the Watchbog cryptomining botnet. The attackers were able to exploit CVE-2018-1000861 to gain a foothold and install the Watchbog malware on the affected systems. This Linux-bas...

Microsoft Patch Tuesday — February 2019: Vulnerability disclosures and Snort coverage

Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday covers 69 vulnerabilities, 20 of which are rated “critical,” 46 that are considered “important” and three that are “moderate.” This release also...

Vulnerability Spotlight: The Circle of a Bug’s Life

OverviewCisco Talos is disclosing several vulnerabilities identified in Circle with Disney. Circle with Disney is a network device designed to monitor the Internet use of children on a given network. Circle pairs wirelessly, with your home Wi-Fi and allows you to manage every device on the networ...

Microsoft Patch Tuesday for March 2023 — Snort rules and prominent vulnerabilities

Microsoft released its monthly security update Tuesday, disclosing 83 vulnerabilities across the companys hardware and software line, including two issues that are actively being exploited in the wild, continuing a trend of zero-days appearing in Patch Tuesdays over the past few months. Two of th...

REvil ransomware actors attack Kaseya in supply chain attack

Updated on July 6, 2021: As analysis of the ransomware attack affecting organizations using Kaseya VSA has continued, we are sharing an update containing additional information. As new details are identified, this information may be updated as needed. This event consisted of two separate, but...

The sights and sounds from the Talos Threat Research Summit

More than 250 threat hunters, network defenders and analysts gathered ahead of Cisco Live for the second annual Talos Threat Research Summit on Sunday. The conference by defenders, for defenders, returned this year after the inaugural event in 2018 to San Diego, where speakers passed on their...

Threat Roundup for October 19 to October 26

Today, Talos is is publishing a glimpse into the most prevalent threats we've observed between Oct. 19 and Oct. 26. 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 by highlighting key behavioral...

Vulnerability Spotlight: Multiple vulnerabilities in Atlassian Jira

Ben Taylor of Cisco ASIG discovered these vulnerabilities. Atlassian’s Jira software contains multiple vulnerabilities that could allow an attacker to carry out a variety of actions, including the disclosure of sensitive information and the remote execution of JavaScript code. Jira is a piece of...

Threat Source (May 2, 2019)

Newsletter compiled by Jonathan Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. If you haven’t yet, there’s still time to register for this year’s Talos Threat Research Summit — our second annual conference by...

Vulnerability Spotlight: Iceni Infix PDF Editor Memory Corruption

Today, Talos is disclosing a vulnerability that has been identified in Iceni Infix PDF Editor that could lead to arbitrary code execution on affected hosts. This vulnerability manifests in a way that could be exploited if a user opens a specifically crafted PDF file that triggers this flaw. Talos...

Threat Source newsletter (Jan. 9, 2019)

Newsletter compiled by Jon Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. We’re back after a long break for the holidays. And 2020 is already off to a fast start as tensions continue to rise in the Middle East...

Vulnerability Spotlight: Multiple vulnerabilities in GOG Galaxy Games

Richard Johnson and Tyler Bohan of Cisco Talos discovered these vulnerabilities. Executive summary The GOG Galaxy video game launcher contains multiple vulnerabilities that could allow a malicious actor to carry out a variety of attacks. GOG Galaxy Games is a video game storefront that allows use...

Combing Through Brushaloader Amid Massive Detection Uptick

Nick Biasini and Edmund Brumaghin authored this blog post with contributions from Matthew Molyett. Executive Summary Over the past several months, Cisco Talos has been monitoring various malware distribution campaigns leveraging the malware loader Brushaloader to deliver malware payloads to...

Microsoft Patch Tuesday - September 2018

Microsoft released its monthly set of security updates today for a variety of its products that address a variety of bugs. The latest Patch Tuesday covers 61 vulnerabilities, 17 of which are rated "critical," 43 that are rated "important" and one that is considered to have "moderate" severity. Th...

Vulnerability Spotlight: VMWare VNC Vulnerabilities

Today, Talos is disclosing a pair of vulnerabilities in the VNC implementation used in VMWare's products that could result in code execution. VMWare implements VNC for its remote management, remote access, and automation purposes in VMWare products including Workstation, Player, and ESXi which...

Vulnerability Spotlight: Multiple bugs in OpenWeave and Nest Labs Nest Cam IQ indoor camera

Lilith Wyatt and Claudio Bozzato of Cisco Talos discovered these vulnerabilities. Cisco Talos recently discovered multiple vulnerabilities in the Nest Cam IQ Indoor camera. One of Nest Labs’ most advanced internet-of-things devices, the Nest Cam IQ Indoor integrates Security-Enhanced Linux in...

Quarterly Report: Incident Response Trends in Q2 2022

Commodity malware usage surpasses ransomware by narrow margin By Caitlin Huey. For the first time in more than a year, ransomware was not the top threat Cisco Talos Incident Response CTIR responded to this quarter, as commodity malware surpassed ransomware by a narrow margin. This is likely due t...

Threat Roundup for January 17 to January 24

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Jan. 17 and Jan. 24. 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 by highlighting key behavioral characteristics...

Threat Source newsletter (May 9)

Newsletter compiled by Jonathan Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. If you haven’t yet, there’s still time to register for this year’s Talos Threat Research Summit — our second annual conference by...

Threat Roundup for June 1-15

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between June 01 and June 15. 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 highlighting key behavioral characteristic...

Vulnerability Spotlight: MySQL Multi-Master Manager Remote Command Injection Vulnerability

Discovered by Matthew Van Gundy of Asig Overview Today, Talos is releasing details of a new vulnerability within MySQL Multi-Master Manager. This is used to perform monitoring, failover and management of MySQL master-master replication configurations. By using MySQL MMM Multi-Master Replication...

Graftor - But I Never Asked for This…

This post is authored by Holger Unterbrink and Matthew MolyettOverviewFree software often downloaded from large freeware distribution sites is a boon for the internet, providing users with functionality that otherwise they would not be able to use. Often users, happy that they are getting somethi...

Vulnerability Spotlight: Code Execution Vulnerability in LabVIEW

Vulnerability discovered by Cory Duplantis of Cisco Talos.Update: 9/1/17 - National Instruments has published the following advisoryOverviewLabVIEW is a system design and development platform released by National Instruments. The software is widely used to create applications for data acquisition...

How Cisco Talos helped Howard County recover from a call center attack

On Aug. 11, 2018 the 911 non-emergency call center in Howard County, Maryland was in crisis — not for the types of calls flooding into dispatchers, but simply for the sheer numbers. The center, which usually receives 300 to 400 calls a day was now getting 2,500 in a 24-hour span of time. The...

Vulnerability Spotlight: Multiple WIBU SYSTEMS WubiKey vulnerabilities

Marcin "Icewall" Noga of Cisco Talos discovered these vulnerabilities. Executive Summary Cisco Talos discovered two vulnerabilities that could allow remote code execution and memory disclosure at the kernel level in WIBU-SYSTEMS WibuKey. WibuKey is a USB key designed to protect software and...

IPv6 unmasking via UPnP

Martin Zeiser and Aleksandar Nikolich authored this post. Executive summary With tools such as ZMap and Masscan and general higher bandwidth availability, exhaustive internet-wide scans of full IPv4 address space have become the norm after it was once impractical. Projects like Shodan and Scans.i...

Threat Round Up for Nov 10 - Nov 17

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between November 10 and November 17. 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 highlighting key behavior...

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 moderate. These...

Threat Source newsletter (Aug. 22)

Newsletter compiled by Jon Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. What’s old is new again. Our research this week centers around a series of long-lasting threat actors and malware that have been given n...

Unravelling .NET with the Help of WinDBG

This blog was authored by Paul Rascagneres and Warren Mercer.Introduction.NET is an increasingly important component of the Microsoft ecosystem providing a shared framework for interoperability between different languages and hardware platforms. Many Microsoft tools, such as PowerShell, and other...

Vulnerability Spotlight: TALOS-2017-0311,0319,0321 - Multiple Remote Code Execution Vulnerability in Poppler PDF library

Vulnerability discovered by Marcin Noga, Lilith Wyatt and Aleksandar Nikolic of Cisco Talos.OverviewTalos has discovered multiple vulnerabilities in the freedesktop.org Poppler PDF library. Exploiting these vulnerabilities can allow an attacker to gain full control over the victim's machine. If a...

Microsoft Patch Tuesday - October 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 63 new vulnerabilities with 28 of them rated critical and 35 rated important. These vulnerabilities impact Graphic...

Lazarus Group's infrastructure reuse leads to discovery of new malware

In the Lazarus Groups latest campaign, which we detailed in a recent blog, the North Korean state-sponsored actor is exploiting CVE-2022-47966, a ManageEngine ServiceDesk vulnerability to deploy multiple threats. In addition to their "QuiteRAT" malware, which we covered in the blog, we also...

Threat Roundup for November 1 to November 8

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov. 1 and Nov. 8. 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 by highlighting key behavioral characteristics,...

Vulnerability Spotlight: CVE-2018-3952 / CVE-2018-4010 - Multi-provider VPN Client Privilege Escalation Vulnerabilities

Discovered by Paul Rascagneres. Overview Cisco Talos has discovered two similar vulnerabilities in the ProtonVPN and NordVPN VPN clients. The vulnerabilities allow attackers to execute code as an administrator on Microsoft Windows operating systems from a standard user. The vulnerabilities were...

Beers with Talos EP 22: Forget the ASA, Rob Joyce Favorited Craig’s Tweet

Beers with Talos BWT Podcast Episode 22 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing: www.talosintelligence.com/podcast EP22 Show Notes: Recorded 2/2/18 - Guests two EPs in a row! We are joined by Omar Santos from Cisco PSI...

Vulnerability Spotlight: Multiple Apple IntelHD5000 privilege escalation vulnerabilities

Tyler Bohan of Cisco Talos discovered this vulnerability. Executive Summary A memory corruption vulnerability exists in the IntelHD5000 kernel extension when dealing with graphics resources inside of Apple OSX 10.13.4. A library inserted into the VLC media application can cause an out-of-bounds...