Threat Roundup for February 25 to March 4

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Feb. 25 and March 4. 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 Advisory: Cyclops Blink

Update Feb. 25, 2022In our ongoing research into activity surrounding Ukraine and in cooperation with Cisco Duo data scientists Talos discovered compromised MikroTik routers inside of Ukraine being leveraged to conduct brute force attacks on devices protected by multi-factor authentication. This...

Cisco stands on guard with our customers in Ukraine

As the Russia-led invasion intensifies, Ukraine is being attacked by bombs and bytes. Cisco is working around the clock on a global, company-wide effort to protect our customers there and ensure that nothing goes dark. Cisco Talos has taken the extraordinary step of directly operating security...

Talos on the developing situation in Ukraine

In the last month, Talos has seen a shift in activity in response to the unjust invasion of Ukraine. This post is meant to serve as our executive overview of the situation and provide you with the most up-to-date information and security content from Talos. As with any highly fluid or dynamic...

Threat Advisory: HermeticWiper

Update: March 1, 2022 Cisco Talos is aware of reporting related to additional components discovered to be associated with ongoing HermeticWiper attacks. These additional components include:HermeticWizard, which allows HermeticWiper to be propagated to and deployed on additional systems within...

Vulnerability Spotlight: Vulnerabilities in Lansweeper could lead to JavaScript, SQL injections

Marcin “Icewall” Noga of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered multiple vulnerabilities in the Lansweeper IT asset management solution that could allow an attacker to inject JavaScript or SQL code on the targeted... This is only the...

Vulnerability Spotlight: Vulnerabilities in Gerbv could lead to code execution, information disclosure

Claudio Bozzato of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered multiple vulnerabilities in the Gerbv file viewing software that could allow an attacker to execute arbitrary remote code or disclose sensitive information. Gerbv is an... This is...

Iran's MuddyWater Hacker Group Using New Malware in Worldwide Cyber Attacks

Cybersecurity agencies from the U.K. and the U.S. have laid bare a new malware used by the Iranian government-sponsored advanced persistent threat APT group in attacks targeting government and commercial networks worldwide. "MuddyWater actors are positioned both to provide stolen data and accesse...

New Sandworm Malware Cyclops Blink Replaces VPNFilter

Summary The Sandworm actor, which the United Kingdom and the United States have previously attributed to the Russian GRU, has replaced the exposed VPNFilter malware with a new more advanced framework. The United Kingdom's UK National Cyber Security Centre NCSC, the Cybersecurity and Infrastructur...

Time to secure hybrid work for 2022, not 2002

By Nick Biasini, with contributions from Vitor Ventura. Editor’s note: This post is the first in a new series from Talos looking at high-level topics across the cybersecurity space. Our researchers rely on years of expertise, data, and tremendous visibility; applying what we can learn from...

Vulnerability Spotlight: Buffer overflow vulnerabilities in Accusoft ImageGear could lead to code execution

Francesco Benvenuto and Emmanuel Tacheau of Cisco Talos and another team member discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered multiple vulnerabilities in Accusoft ImageGear. The ImageGear library is a document-imaging developer toolkit that... This is only...

Threat Roundup for February 11 to February 18

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Feb. 11 and Feb. 18. 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: Vulnerability in Hancom Office could lead to memory corruption, code execution

Marcin “Icewall” Noga of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered a vulnerability in Hancom Office — a popular software suite in South Korea — that could allow an attacker to corrupt memory on the targeted machine or execute remote... This...

Vulnerability Spotlight: Vulnerabilities in Moxa MXView could allow attacker to view sensitive information, bypass login

Patrick DeSantis of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered two vulnerabilities in Moxa's MXview network management software that could allow an attacker to view sensitive data or bypass the need to log into the device. MXview... This is...

Threat Roundup for February 4 to February 11

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Feb. 4 and Feb. 11. 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...

Beers with Talos, Ep. #116: Let's wade into the MuddyWater filled with Vipers

Beers with Talos BWT Podcast episode No. 116 is now available. Download this episode and subscribe to Beers with Talos: Apple Podcasts Google Podcasts Spotify StitcherRecorded Feb. 4, 2022. If iTunes and Google Play aren't your thing, click here. Most people... This is only the beginning! Please...

Iranian APT MuddyWater targets Turkish users via malicious PDFs, executables

By Asheer Malhotra and Vitor Ventura. Cisco Talos has observed a new campaign targeting Turkish private organizations alongside governmental institutions. Talos attributes this campaign with high confidence to MuddyWater — an APT group recently attributed to Iran's Ministry of Intelligence and...

Vulnerability Spotlight: Multiple vulnerabilities in Sealevel SeaConnect

Francesco Benvenuto and Matt Wiseman of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered several vulnerabilities in Sealevel Systems Inc.’s SeaConnect internet-of-things edge device — many of which could allow an attacker to conduct a... This is...

Vulnerability Spotlight: Use-after-free in Google Chrome could lead to code execution

Marcin Towalski of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered an exploitable use-after-free vulnerability in Google Chrome. Google Chrome is a cross-platform web browser — and Chromium is the open-source version of the browser... This is only t...

Threat Roundup for January 28 to February 4

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Jan. 28 and Feb. 4. 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...