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Threat Roundup for July 31 to August 7
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 31 and Aug. 7. 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 for Aug. 6, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. We spend a lot of time talking about what you should do to keep your data safe, and how other organizations should be prepared for the worst. But what happens if the worst happens to you? In the latest Beers with Talos episode, we...
Vulnerability Spotlight: Microsoft issues security update for Azure Sphere
Claudio Bozzato, Lilith and Dave McDaniel of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos researchers recently discovered seven vulnerabilities in Microsoft’s Azure Sphere, a cloud-connected SoC platform designed specifically with IoT application security in mind...
Threat Roundup for July 17 to July 24
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 17 and July 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 Roundup for July 24 to July 31
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 24 and July 31. 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: Two vulnerabilities in SoftPerfect RAM Disk
A Cisco Talos researcher discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos researchers recently discovered that a specific driver in the SoftPerfect RAM disk could allow an adversary to delete files on an arbitrary basis and disclose sensitive information. SoftPerfect RAM Disk is a...
Prometei botnet and its quest for Monero
By Vanja Svajcer. NEWS SUMMARYWe are used to ransomware attacks and big-game hunting making the headlines, but there are still methods adversaries use to monetize their efforts in less intrusive ways.Cisco Talos recently discovered a cryptocurrency-mining botnet attack we're calling "Prometei"...
Threat Source newsletter for July 30, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. Adversaries love to use headlines as part of their spam campaigns. From COVID-19, to Black Lives Matter and even Black Friday every year, the bad guys are wanting to capitalize on current events. Why is this the case, and when do...
Adversarial use of current events as lures
By Nick Biasini. The goal of malicious activity is to compromise the system to install some unauthorized software. Increasingly that goal is tied to one thing: the user. Over the past several years, we as an industry improved exploit mitigation and the value of working exploits has increased...
Vulnerability Spotlight: Multiple vulnerabilities in RemoteFX affects, AMD, Intel chips
Piotr Bania of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered multiple vulnerabilities in Intel’s Graphics Accelerator Driver and in an AMD Radeon driver. The Intel driver was released in 2019 and is used in multiple Intel integrated and...
Threat Source newsletter for July 23, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. While ransomware attacks continue to hog all the headlines, cryptocurrency miners are still running the background, sapping computing power from unsuspecting victims. We have what we believe is the first documentation of a new...
Beers with Talos Ep. #88: It’s not about the vote, it’s about trust
Beers with Talos BWT Podcast episode No. 88 is now available. Download this episode and subscribe to Beers with Talos:Apple Podcasts Google PodcastsSpotify StitcherIf iTunes and Google Play aren't your thing, click here. By Mitch Neff. Recorded July 7, 2020 Nigel is out this week, but we have a...
Beers with Talos Ep. #87: Happy 3rd birthday BWT — It’s story time!
Beers with Talos BWT Podcast episode No. 87 is now available. Download this episode and subscribe to Beers with Talos:Apple Podcasts Google PodcastsSpotify StitcherIf iTunes and Google Play aren't your thing, click here. By Mitch Neff. Recorded June 24, 2020 Has it been three years already? We ha...
Threat Roundup for July 10 to July 17
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 10 and July 17. 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 for July 16, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. If you haven’t already, we highly recommend you read our in-depth research paper on election security. This paper represents four years of hands-on research, interviews and insight into how things have changed since 2016, and what...
What to expect when you’re electing: Talos’ 2020 election security primer
By Jon Munshaw and Matt Olney. After the 2016 General Election, the talk was all around foreign meddling. Rumors swirled that some votes may have been changed or influenced by state-sponsored actors. Sanctions and accusations followed. Four years later, is the U.S. any more prepared to protect th...
Microsoft Patch Tuesday for July 2020 — Snort rules and prominent vulnerabilities
By Jon Munshaw. Microsoft released its monthly security update Tuesday, disclosing more than 120 vulnerabilities across its array of products. While only a few vulnerabilities are considered critical, users of all Microsoft and Windows products are urged to update their software as soon as possib...
Threat Roundup for July 3 to July 10
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 3 and July 10. 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: SQL injection vulnerability in Glacies IceHRM
Yuri Kramarz of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos researchers recently discovered that the Glacies' IceHRM software contains a vulnerability that could allow an adversary to inject SQL. IceHRM is a human resource management tool, allowing users to create...
WastedLocker Goes "Big-Game Hunting" in 2020
By Ben Baker, Edmund Brumaghin, JJ Cummings and Arnaud Zobec. Threat summary After initially compromising corporate networks, the attacker behind WastedLocker performs privilege escalation and lateral movement prior to activating ransomware and demanding ransom payment.The use of "dual-use" tools...
New Snort rule addresses critical vulnerability in F5 BIG-IP
By Jon Munshaw. Cisco Talos just released Snort coverage for a prominent vulnerability in F5’s BIG-IP. BIG-IP is one of the most popular networking products on the modern market. This product is used to shape web traffic, access gateways, limit rates and much more. F5 disclosed a remote code...
Threat Source newsletter for July 2, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. Our latest research you should catch up on is the Valak malware. This information-stealer sneaks its way onto victim machines by hijacking legitimate email threads. The threat actors send their phishing emails and attachments in...
Vulnerability Spotlight: Google Chrome PDFium memory corruption vulnerability
Aleksandar Nikolic of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. The PDF renderer inside Google Chrome, known as PDFium, contains a memory corruption vulnerability that could be exploited by an adversary. PDFium is open-source software that is utilized in the Chrome browser a...
Threat Source newsletter for June 25, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. We recently decided to replace our use of the terms "blacklist" and "whitelist" with "block list" and "allow list.” Even though these terms are commonly in use in the security industry, we will not go along with casually assigning...
Beers with Talos Ep. #86: It’s just an exploit popularity contest...
Beers with Talos BWT Podcast episode No. 85 is now available. Download this episode and subscribe to Beers with Talos:Apple Podcasts Google PodcastsSpotify StitcherIf iTunes and Google Play aren't your thing, click here. By Mitch Neff. Recorded June 5, 2020 Prod. Note: The team decided to hold ba...
Vulnerability Spotlight: Remote code execution vulnerabilities in LEADTOOLS 20
Cory Duplantis of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered a remote code execution vulnerability in the LEADTOOLS line of imaging toolkits. LEADTOOLS is a collection of toolkits designed to perform a variety of functions aimed at integrating...
Vulnerability Spotlight: Information disclosure vulnerability in Mozilla Firefox
Marcin "Icewall" Noga of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered an information disclosure vulnerability in Mozilla Firefox. An attacker can exploit this bug by tricking a user into visiting a specially crafted web page through the browser. ...
Threat Spotlight: Valak Slithers Its Way Into Manufacturing and Transportation Networks
By Nick Biasini, Edmund Brumaghin and Mariano Graziano. Threat summary Attackers are actively distributing the Valak malware family around the globe, with enterprises, in particular, being targeted.These campaigns make use of existing email threads from compromised accounts to greatly increase...
Beers with Talos Ep. #85: The In-Between, Vol. 5
Beers with Talos BWT Podcast episode No. 85 is now available. Download this episode and subscribe to Beers with Talos:Apple Podcasts Google Podcasts Spotify Stitcher If iTunes and Google Play aren't your thing, click here. By Mitch Neff. Recorded May 29, 2020 Prod. Note: Things are a hot mess rig...
PROMETHIUM extends global reach with StrongPity3 APT
By Warren Mercer, Paul Rascagneres and Vitor Ventura. News summaryThe threat actor behind StrongPity is not deterred despite being exposed multiple times over the past four years.They continue to expand their victimology and attack seemingly non related countries.This kind of continuous improveme...
Threat Roundup for June 19 to June 26
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between June 19 and June 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 characteristics...
Vulnerability Spotlight: Denial-of-service vulnerability in NVIDIA driver
Piotr Bania of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Executive summaryThe NVWGF2UMXCFG.DLL driver contains a denial-of-service vulnerability that an attacker could use to disrupt processes over a virtual machine. An adversary could exploit this bug by providing a special...
IndigoDrop spreads via military-themed lures to deliver Cobalt Strike
By Asheer Malhotra. Cisco Talos has observed a malware campaign that utilizes military-themed malicious Microsoft Office documents maldocs to spread Cobalt Strike beacons containing full-fledged RAT capabilities. These maldocs use malicious macros to deliver a multistage and highly modular...
Threat Roundup for June 5 to June 12
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between June 5 and June 12. 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,...
Cisco Talos replacing all mentions of 'blacklist,' 'whitelist'
There are many ways to respond to injustice, both large and small, but each response is important. While we acknowledge it is a small change, Cisco Talos is moving to replace our use of the terms "blacklist" and "whitelist" with "block list" and "allow list.” Even though these terms are commonly ...
Threat Source newsletter for June 18, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. Now that Cisco Live is over, you can access both of Talos’ talks on-demand here if you registered for the online event. The latest Beers with Talos episode covers how to push your career in cyber security forward when you feel lik...
Beers with Talos Ep. #84: Mid-career advancement in cyber security
Beers with Talos BWT Podcast episode No. 84 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. By Mitch Neff. Recorded May 26, 2020 Prod. Note: Things are a hot mess right now and the team thinks that there are voice...
Tor2Mine is up to their old tricks — and adds a few new ones
By Kendall McKay and Joe Marshall. Threat summaryCisco Talos has identified a resurgence of activity by Tor2Mine, a cryptocurrency mining group that was likely last active in 2018. Tor2Mine is deploying additional malware to harvest credentials and steal more money, including AZORult, an...
Updates to Snort setup guides
Our documentation on Snort 3 running on CentOS and the Snort Rules Writing guide to Snort 3. Thanks to community member Yaser for providing the updates. The Snort 3 guide now has expanded information on logging options — such as syslog and JSON. There is also a new performance optimization sectio...
Quarterly report: Incident Response trends in Summer 2020
By David Liebenberg and Caitlin Huey. For the fourth quarter in a row, Ryuk dominated the threat landscape in incident response. As we mentioned in last quarter’s report, Ryuk has shifted from relying on commodity trojans to using living-off-the-land tools. This has led to a decrease in...
Beers with Talos Ep. #83: The In-between, Vol. 4
Beers with Talos BWT Podcast episode No. 83 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. By Mitch Neff. Recorded May 15, 2020 Prod. Note: Things are a hot mess right now and the team thinks that there are voice...
Threat Source newsletter for June 11, 2020
Newsletter compiled by Jon Munshaw. Good afternoon, Talos readers. We are back this week with new content, mainly around Microsoft Patch Tuesday. We have our complete breakdown of all the vulns here, as well as in-depth information on two remote code execution vulnerabilities one of our researche...
Vulnerability Spotlight: Two code execution vulnerabilities in Microsoft Excel
Marcin “Icewall” Noga of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos researchers recently discovered two code execution vulnerabilities in Microsoft Excel. Microsoft released updates for these two bugs as part of their Patch Tuesday security update this week. Bo...
Vulnerability Spotlight: Remote code execution vulnerability in Firefox’s SharedWorkerService function
Marcin “Icewall” Noga of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. The Mozilla Firefox web browser contains a vulnerability in its SharedWorkerService function that could allow an attacker to gain the ability to remotely execute code on a target’s machine. This vulnerability...
Microsoft Patch Tuesday for June 2020 — Snort rules and prominent vulnerabilities
By Jon Munshaw. Microsoft released its monthly security update Tuesday, disclosing more than 120 vulnerabilities across its array of products. While none of the vulnerabilities disclosed have been exploited in the wild, users of all Microsoft and Windows products are urged to update their softwar...
Vulnerability Spotlight: Multiple vulnerabilities in Siemens LOGO! PLC
Alexander Perez-Palma of Cisco Talos and Emanuel Almeida of Cisco Systems discovered these vulnerabilities. Blog by Jon Munshaw. Cisco researchers recently discovered several vulnerabilities in the Siemens LOGO! PLC. The LOGO! allows users to control various automation projects, such as industria...
Threat Roundup for May 29 to June 5
Today, Talos is publishing a glimpse into the most prevalent threats we've observed between May 29 and June 5. 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 for June 4, 2020
Newsletter compiled by Jon Munshaw. Our social media content and promotion are on pause this week as there are more important issues being discussed and other voices that need to be heard. However, we still wanted to provide users with the latest IOCs and threats we’re seeing. Upcoming public...
Vulnerability Spotlight: Two vulnerabilities in Zoom could lead to code execution
A member of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered two vulnerabilities in the popular Zoom video chatting application that could allow a malicious user to execute arbitrary code on victims’ machines. Video conferencing software has...
Vulnerability Spotlight: VMware Workstation 15 denial-of-service vulnerability
Piotr Bania of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered a denial-of-service vulnerability in VMware Workstation 15. VMware allows users to set up virtual machines and operate various operating systems outside of the ones designed for their...