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September 23, 2021 08:01

Operation “Armor Piercer:” Targeted attacks in the Indian subcontinent using commercial RATs

By Asheer Malhotra, Vanja Svajcer and Justin Thattil. * Cisco Talos is tracking a campaign targeting government personnel in India using themes and tactics similar to APT36 (aka Mythic Leopard and Transparent Tribe). * This campaign distributes malicious documents and archive

September 21, 2021 08:11

TinyTurla - Turla deploys new malware to keep a secret backdoor on victim machines

News summary * Cisco Talos recently discovered a new backdoor used by the Russian Turla APT group. * We have seen infections in the U.S., Germany and, more recently, in Afghanistan. * It is likely used as a stealth second-chance backdoor to keep access to infected devices *

September 17, 2021 16:28

Threat Roundup for September 10 to September 17

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Sept. 10 and Sept. 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

September 17, 2021 10:39

Talos Takes Ep. #68: The various pivots and pitfalls in a malware investigation

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. On this week's episode, Vitor Ventura from our research team walks through his recent work on connecting several mal

September 16, 2021 14:00

Threat Source newsletter (Sept. 16, 2021)

Good afternoon, Talos readers. It's a bird, it's a plane, it's a rat! We've been tracking a series of trojans targeting the aviation industry, and trying to lure victims in by sending them spam related to flight itineraries and other transportation news. In our

September 16, 2021 08:00

Operation Layover: How we tracked an attack on the aviation industry to five years of compromise

By Tiago Pereira and Vitor Ventura. * Cisco Talos linked the recent aviation targeting campaigns to an actor who has been targeting the aviation industry for two years. * The same actor has been running successful malware campaigns for more than five years. * Although always

September 14, 2021 13:33

Microsoft Patch Tuesday for Sept. 2021 — Snort rules and prominent vulnerabilities

By Jon Munshaw, with contributions from Holger Unterbrink. Microsoft released its monthly security update Tuesday, disclosing 85 vulnerabilities across the company’s firmware and software. This month’s release is headlined by an official patch for the critical remote code execut

September 13, 2021 14:35

Downtime on Talos Intelligence

TalosIntelligence.com will be down for a short time on Sept. 17 around 10 a.m. ET while we perform some routine maintenance on the site. We apologize for any inconvenience this may cause. We expect the interruption will only last for about 30 minutes.

September 13, 2021 10:12

Vulnerability Spotlight: Code execution vulnerability in Nitro Pro PDF

A Cisco Talos team member discovered these vulnerabilities. Cisco Talos recently discovered a vulnerability in the Nitro Pro PDF reader that could allow an attacker to execute code in the context of the application. Nitro Pro PDF is part of Nitro Software’s Productivity Suite.