North Korean Hackers Uncovered as Mastermind in 3CX Supply Chain Attack

Enterprise communications service provider 3CX confirmed that the supply chain attack targeting its desktop application for Windows and macOS was the handiwork of a threat actor with North Korean nexus. The findings are the result of an interim assessment conducted by Google-owned Mandiant, whose...

Threat Source newsletter (April 6, 2023) — Another friendly reminder about supply chain attacks

Welcome to this weeks edition of the Threat Source newsletter. It seems like we cant go a full calendar year without a major supply chain attack. In late 2020 we had the SolarWinds incident which, doesnt that somehow seem like five years ago but also yesterday?, then the REvil ransomware group...

North Korea Hacking Cryptocurrency Sites with 3CX Exploit

News: Researchers at Russian cybersecurity firm Kaspersky today revealed that they identified a small number of cryptocurrency-focused firms as at least some of the victims of the 3CX software supply-chain attack thats unfolded over the past week. Kaspersky declined to name any of those victim...

Cryptocurrency Companies Targeted in Sophisticated 3CX Supply Chain Attack

The adversary behind the supply chain attack targeting 3CX deployed a second-stage implant specifically singling out a small number of cryptocurrency companies. Russian cybersecurity firm Kaspersky, which has been internally tracking the versatile backdoor under the name Gopuram since 2020, said ...

3CXDesktopApp Backdoored in a Suspected Lazarus Campaign

Introduction The attack involved a compromised version of the 3CX VoIP desktop client, which was used to target 3CXs customers. The compromised 3CX application is a private automatic branch exchange PABX software and is available for Windows, macOS, Linux, Android, IOS and Chrome. Currently, ther...

3CX Supply Chain Attack — Here's What We Know So Far

Enterprise communications software maker 3CX on Thursday confirmed that multiple versions of its desktop app for Windows and macOS are affected by a supply chain attack. The version numbers include 18.12.407 and 18.12.416 for Windows and 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 for macOS...

Threat Advisory: 3CX Softphone Supply Chain Compromise

Cisco Talos is tracking and actively responding to a supply chain attack involving the 3CX Desktop Softphone application. This is a multi-stage attack that involves sideloading DLLs, seven-day sleep routines, and additional payloads dependent on a now-removed GitHub repository for Windows-based...

CVE-2023-29059

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

Code injection

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

Popular PABX platform, 3CX Desktop App suffers supply chain attack

By Deeba Ahmed According to cybersecurity researchers, a nation-state actor, LABYRINTH CHOLLIMA, is suspected to be behind the multi-stage attack on 3CXDesktopApp. This is a post from HackRead.com Read the original post: Popular PABX platform, 3CX Desktop App suffers supply chain attack...

Backdoored 3CXDesktopApp Installer Used in Active Threat Campaign

Emergent threats evolve quickly. We will update this blog with new information as it comes to light and we are able to verify it. Erick Galinkin, Ted Samuels, Zach Dayton, Eoin Miller, Caitlin Condon, Stephen Fewer, Spencer McIntyre, and Christiaan Beek all contributed to this blog. On Wednesday,...

3CX Desktop App Supply Chain Attack Leaves Millions at Risk - Urgent Update on the Way!

3CX said it's working on a software update for its desktop app after multiple cybersecurity vendors sounded the alarm on what appears to be an active supply chain attack that's using digitally signed and rigged installers of the popular voice and video conferencing software to target downstream...

[Updated April 3] 3CX desktop app used in a supply chain attack

Researchers have found that the 3CX desktop app may be compromised and used in supply chain attacks. The 3CX Desktop App is a Voice over Internet Protocol VoIP type of application which is available for Windows, macOS, Linux and mobile. Many large corporations use it internally to make calls, vie...

3CX Desktop App Installed (macOS)

Binary data macos3cxdesktopappinstalled.nbin...

3CX Desktop App Installed (Windows)

Binary data 3cxdesktopappinstalled.nbin...

CVE-2023-29059

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

CVE-2023-29059

CVE-2023-29059 is a supply-chain compromise affecting the 3CX DesktopApp (Windows Electron: 18.12.407/18.12.416; macOS Electron: 18.11.1213/18.12.402/18.12.407/18.12.416). The initial installer drops legitimate 3CX components, then loads a malicious ffmpeg.dll that loads d3dcompiler_47.dll, which...

CVE-2023-29059

3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX...

Developing Story: Information on Attacks Involving 3CX Desktop App

In late March 2023, security researchers revealed that threat actors were actively abusing a popular business communication software from 3CX...

Preventing and Detecting Attacks Involving 3CX Desktop App

In this blog entry, we provide technical details and analysis on the 3CX attacks as they happen. We also discuss available solutions which security teams can maximize for early detection and mitigate the impact of 3CX attacks...