Threat Roundup for May 3 to May 10

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between May 03 and May 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,...

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...

Vulnerability Spotlight: Remote code execution bug in SQLite

Cory Duplantis of Cisco Talos discovered this vulnerability. Executive summary SQLite contains an exploitable use-after-free vulnerability that could allow an attacker to gain the ability to remotely execute code on the victim machine. SQLite is a client-sidedatabase management system contained i...

Threat Roundup for April 26 to May 3

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between April 26 and May 03. 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: Multiple bugs in several Jenkins plugins

Peter Adkins of Cisco Umbrella discovered these vulnerabilities. Executive summary Jenkins is an open-source automation server written in Java. There are several plugins that exist to integrate Jenkins with other pieces of software, such as GitLab. Today, Cisco Talos is disclosing vulnerabilities...

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...

Qakbot levels up with new obfuscation techniques

Ashlee Benge of Cisco Talos and Nick Randolph of the Threat Grid Research and Efficacy team authored this blog post. Executive summary Qakbot, also known as Qbot, is a well-documented banking trojan that has been around since 2008. Recent Qakbot campaigns, however, are utilizing an updated...

JasperLoader Emerges, Targets Italy with Gootkit Banking Trojan

Nick Biasini and Edmund Brumaghin authored this blog post with contributions from Andrew Williams. Introduction to JasperLoader Malware loaders are playing an increasingly important role in malware distribution. They give adversaries the ability to gain an initial foothold on a system and are...

Sodinokibi ransomware exploits WebLogic Server vulnerability

This blog was authored by Pierre Cadieux, Colin Grady, Jaeson Schultz and Matt Valites Attackers are actively exploiting a recently disclosed vulnerability in Oracle WebLogic to install a new variant of ransomware called "Sodinokibi." Sodinokibi attempts to encrypt data in a user's directory and...

Beers with Talos Ep. #52: I don't trust you because I care

Beers with Talos BWT Podcast Ep. 52 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. Recorded April 26, 2019 - Since Craig decided to skip the podcast today, we decided to invite one of Austin’s top actual security...

Threat Roundup for April 19 to April 26

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between April 19 and April 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 Sierra Wireless AirLink ES450

Carl Hurd and Jared Rittle of Cisco Talos discovered these vulnerabilities. Executive summary Several exploitable vulnerabilities exist in the Sierra Wireless AirLink ES450, an LTE gateway designed for distributed enterprise, such as retail point-of-sale or industrial control systems. These flaws...

Threat Source (April 25)

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...

DNSpionage brings out the Karkoff

Warren Mercer and Paul Rascagneres authored this post. Update 4/24: The C2 section below now includes details around the XOR element of the C2 communication system. Executive summary In November 2018, Cisco Talos discovered an attack campaign, called DNSpionage, in which threat actors created a n...

Vulnerability Spotlight: Symantec Endpoint Protection kernel memory information disclosure vulnerability

Marcin Noga of Cisco Talos discovered this vulnerability. Overview Cisco Talos is disclosing an information leak vulnerability in the ccSetx86.sys kernel driver of Symantec Endpoint Protection Small Business Edition. The vulnerability exists in the driver’s control message handler. An attacker ca...

Threat Source (April 18): New attacks distribute Formbook, LokiBot

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 April 12 to April 19

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between April 12 and April 19. 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...

DNS Hijacking Abuses Trust In Core Internet Service

Authors: Danny Adamitis, David Maynor, Warren Mercer, Matthew Olney and Paul Rascagneres. Update 4/18: A correction has been made to our research based on feedback from Packet Clearing House, we thank them for their assistance Preface This blog post discusses the technical details of a...

Threat Source (April 4)

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 defenders, for defenders. This year’s Summ...

Beers with Talos Ep. #51: Sea Turtles yeeting packets

Beers with Talos BWT Podcast Ep. No. 51 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. Recorded April 12, 2019 — Today, we rip through a few other things to spend most of our time discussing Sea Turtle, the lates...

New HawkEye Reborn Variant Emerges Following Ownership Change

Edmund Brumaghin and Holger Unterbrink authored this blog post. Executive summary Malware designed to steal sensitive information has been a threat to organizations around the world for a long time. The emergence of the greyware market and the increased commercialization of keyloggers, stealers,...

Vulnerability Spotlight: Denial of service in VMWare Workstation 15

Piotr Bania of Cisco Talos discovered this vulnerability. Executive summary VMware Workstation 15 contains an exploitable denial-of-service vulnerability. Workstation allows users to run multiple operating systems on a Linux or Windows PC. An attacker could trigger this particular vulnerability...

Vulnerability Spotlight: Multiple vulnerabilities in Shimo VPN's helper tool

Discovered by Tyler Bohan of Cisco Talos. Overview Cisco Talos is disclosing a series of vulnerabilities found in the Shimo VPN Helper Tool. Shimo VPN is a popular VPN client for MacOS that can be used to connect multiple VPN accounts to one application. These specific vulnerabilities were found ...

Threat Roundup for April 5 to April 12

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between April 05 and April 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...

Sextortion profits decline despite higher volume, new techniques

Post authored by Nick Biasini and Jaeson Schultz. Sextortion spammers continue blasting away at high volume. The success they experienced with several high-profile campaigns last year has led these attackers to continue transmitting massive amounts of sextortion email. These sextortion spammers...

Threat Source (April 11)

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: Adobe Acrobat Reader remote code execution

Aleksandar Nikolic of Cisco Talos discovered these vulnerabilities. Executive summary There is a remote code execution vulnerability in Adobe Acrobat Reader that could occur if a user were to open a malicious PDF on their machine using the software. Acrobat is the most widely used PDF reader on t...

Gustuff banking botnet targets Australia

Vitor Ventura authored this post. Executive summary Cisco Talos has uncovered a new Android-based campaign targeting Australian financial institutions. As the investigation progressed, Talos came to understand that this campaign was associated with the "ChristinaMorrow" text message spam scam...

Microsoft Patch Tuesday — April 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 74 vulnerabilities, 16 of which are rated “critical” and 58 that are considered “important.” This release also includes a critical advisory...

Beers with Talos Ep. #50: Operating under the cover of… nothing

Beers with Talos BWT Podcast Ep. No. 50 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. Recorded March 29, 2019 - Matt and Joel are both on the road this week, and Omar Santos from Cisco PSIRT joins the crew to...

Threat Roundup for March 29 to April 5

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 29 and April 05. 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...

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...

Registration for the 2019 Talos Threat Research Summit is now open

The Talos Threat Research Summit is officially back. Registration is open now for the second year of our conference by defenders, for defenders. Tickets sold out quickly last year for our inaugural event, so act quickly. This year’s Research Summit will take place on June 9 in San Diego, Calif. —...

Threat Roundup for March 22 to March 29

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 22 and March 29. 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...

Cyber Security Week in Review (March 28)

Welcome to this week's Cyber Security Week in Review, where Cisco Talos runs down all of the news we think you need to know in the security world. Top headlines this week ASUS had to release an emergency fix for a malware that may have accidentally deployed to their machines. Attackers may have...

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...

Cisco Talos adds new Content Category

Our goal at Cisco Talos is to provide detailed and actionable information in order to let customers decide how best to protect their networks and users based on their needs. To this end, Cisco Talos is adding a new content category to Talos Intelligence. Starting on April 3, supported Cisco...

Threat Roundup for March 15 to March 22

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 15 and March 22. 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...

Cyber Security Week in Review (March 22)

Welcome to this week's Cyber Security Week in Review, where Cisco Talos runs down all of the news we think you need to know in the security world. For more news delivered to your inbox every week, sign up for our Threat Source newsletter here. Top headlines this week Norwegian aluminum company...

Ransomware or Wiper? LockerGoga Straddles the Line

Executive Summary Ransomware attacks have been in the news with increased frequency over the past few years. This type of malware can be extremely disruptive and even cause operational impacts in critical systems that may be infected. LockerGoga is yet another example of this sort of malware. It ...

Beers with Talos Ep. #49: POS Malware, RSA Highlights, and SOL OpSec Fails

Beers with Talos BWT Podcast Ep. 49 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing, click here. Recorded March 15, 2019. We recorded this after coming back from RSA, with some on-location highlights included. This episode ope...

Vulnerability Spotlight: Multiple Vulnerabilities in CUJO Smart Firewall, Das U-Boot, OCTEON SDK, Webroot BrightCloud

Claudio Bozzato of Cisco Talos discovered these vulnerabilities. Executive summary CUJO AI produces the CUJO Smart Firewall, a device that provides protection to home networks against a myriad of threats such as malware, phishing websites and hacking attempts. Cisco Talos recently discovered 11...

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 Roundup for March 8 to March 15

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 08 and March 15. 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...

Cyber Security Week in Review (March 15)

Welcome to this week's Cyber Security Week in Review, where Cisco Talos runs down all of the news we think you need to know in the security world. For more news delivered to your inbox every week, sign up for our Threat Source newsletter here. Top headlines this week The U.S. warned Germany that...

GlitchPOS: New PoS malware for sale

Warren Mercer and Paul Rascagneres authored this post with contributions from Ben Baker. Executive summary Point-of-sale malware is popular among attackers, as it usually leads to them obtaining credit card numbers and immediately use that information for financial gain. This type of malware is...

Microsoft Patch Tuesday — March 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 64 vulnerabilities, 17 of which are rated “critical,” 45 that are considered “important” and one “moderate” and “low” vulnerability each. This...

Vulnerability Spotlight: Privilege escalation bug in CleanMyMac X's helper service

Tyler Bohan of Cisco Talos discovered this vulnerability. Executive summary CleanMyMac X contains a privilege escalation vulnerability in its helper service due to improper updating. The application fails to remove the vulnerable components upon upgrading to the latest version, leaving the user...

The sights and sounds of Cisco Talos at RSA 2019

An estimated 45,000 people attended this year’s RSA Conference in San Francisco to hear talks from some of the greatest minds in security. As always, Cisco and Talos had a massive presence at the conference, topping off the week with a keynote address featuring Matt Watchinski, the vice president...

Threat Roundup for Mar. 1 to Mar. 8

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 1 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, indicato...