Threat Roundup for August 6 to August 13

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Aug. 6 and Aug. 13. 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...

Ransomware Gangs Exploiting Windows Print Spooler Vulnerabilities

Ransomware operators such as Magniber and Vice Society are actively exploiting vulnerabilities in Windows Print Spooler to compromise victims and spread laterally across a victim's network to deploy file-encrypting payloads on targeted systems. "Multiple, distinct threat actors view this...

Talos Takes Ep. #64: Back 2 Skool edition

By Jon Munshaw. The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. There's no shortage of complications leading into this new school year. Students, parents, teachers and admins alike... Th...

Vulnerability Spotlight: Multiple vulnerabilities in AT&T Labs’ Xmill utility

Carl Hurd of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered multiple vulnerabilities in AT&T Labs’ Xmill utility. An attacker could take advantage of these issues to carry out a variety of malicious actions, including corrupting the... This is...

Vulnerability Spotlight: Code execution vulnerability in Mozilla Firefox

Marcin “Icewall” Noga of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered a use-after-free vulnerability in Mozilla Firefox that could lead to code execution. Firefox is a widely used web browser available on many operating systems. This... This is...

Talos Takes Ep: #63: Shield your eyes from the Solarmarker

By Jon Munshaw. The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. Andrew Windsor has been following the Solarmarker threat for months. But it really started to catch his eye when he... Thi...

Threat Roundup for July 30 to August 6

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 30 and Aug. 6. 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: Use-after-free vulnerability in tinyobjloader

Lilith of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered that a specific function of tinyobjloader does not properly validate array indexes. An adversary could trick a user into opening a specially crafted file, causing an index... This is only the...

Threat Source newsletter (Aug. 5, 2021)

Newsletter compiled by Jon Munshaw.Good afternoon, Talos readers. We hope everyone is enjoying BlackHat and/or DEFCON this week, regardless of if you're attending virtually or in person. In case you missed any of our talks from BlackHat, you can check them out here, along... This is only the...

Updates to the Cisco Talos Email Status Portal

Cisco Talos is rolling out several changes to the Email Status Portal that adds new features and makes the Portal even easier to use. The Talos Email Status Portal allows users to view mail samples submitted and their statuses, analyze graphical displays of submission metrics, administer... This ...

Threat Roundup for July 23 to July 30

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 23 and July 30. 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...

Threat Source newsletter (July 29, 2021)

Newsletter compiled by Jon Munshaw.Good afternoon, Talos readers. Thanks to everyone who joined us live yesterday for our talk on business email compromise. If you missed us live, the recording is up on our YouTube page now. Nick Biasini from Talos Outreach provided some great advice on... This i...

Vulnerability Spotlight: Use-after-free vulnerabilities in Foxit PDF Reader

Aleksandar Nikolic of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered multiple use-after-free vulnerabilities in the Foxit PDF Reader. Foxit PDF Reader is one of the most popular PDF document readers currently available. As a... This is only the...

Threat Roundup for July 16 to July 23

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 16 and July 23. 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...

Talos Takes Ep: #62: Don't sleep on business email compromise

By Jon Munshaw. The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. Business email compromise may seem like last decade’s threat, but it’s still just as prevalent as ever. A recent FBI... Th...

Threat Source newsletter (July 22, 2021)

Newsletter compiled by Jon Munshaw.Good afternoon, Talos readers. I'm compiling this Tuesday for vacation reasons, so apologies for any major stories I'm missing here. This week's Beers with Talos podcast hits the seas again. And although we've covered sea shanties in the past, this... This is on...

Beers with Talos, Ep. #107: Sailing the high seas in search of privateer groups

Beers with Talos BWT Podcast episode No. 107 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. You're not going to believe this, but everyone... This is only the...

Threat Roundup for July 9 to July 16

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between July 9 and July 16. 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...

Talos Takes Ep: #61: SideCopy sounds so familiar, but I just can't put my finger on it...

By Jon Munshaw. The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. Asheer Malhotra of Talos Outreach has spent the past few months tracking APTs all along the same line. APT 36, aka... This...

CVE-2021-34448

Scripting Engine Memory Corruption Vulnerability Recent assessments: gwillcox-r7 at July 14, 2021 5:02pm UTC reported: Looking at Microsoft’s advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34448 shows very little information other than that this is a scripting engine...