QiAnXin Threat Intelligence Center's RedDrip team tracked the relevant events and discovered a batch of attack samples exploiting the CVE-2023-23397 vulnerability. After analyzing these samples and C2 servers, we believe that the exploitation of this vulnerability in the wild has been ongoing since March 2022. In the later stages of the attack, the attackers used Ubiquiti-EdgeRouter routers as C2 servers, and the victims of the attack activity were from multiple countries.
An investigation into the FSB’s digital surveillance and disinformation contractor
A large-scale "QakNote" attack deploys malicious .one files as a novel infection vector
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.
Exfiltrated Russian-written documents provide insights into cyber offensive tool projects contracted by Vulkan private firm for the Russian Ministry of Defense.
Scan-AS is a database used to map adversary networks in parallel or prior to cyber operations. Scan-AS is a subsystem of a wider management system used to conduct, manage and capitalize results of cyber operations.
Amezit is an information system aimed at managing the information flow on a limited geographical area. It allows communications interception, analysis and modification, and can create wide information campaigns through social media, email, altered websites or phone networks.
Open-Source Stealer Widely Abused by Threat Actors
The threat of InfoStealers is widespread and has been frequently employed by various Threat Actors (TA)s to launch attacks and make financial gains. Until now, the primary use of stealers by TAs has been to sell logs or to gain initial entry into a corporate network.
Authorities in Germany this week seized Internet servers that powered FlyHosting, a dark web service that catered to cybercriminals operating DDoS-for-hire services. Fly Hosting first advertised on cybercrime forums in November 2022, saying it was a Germany-based hosting firm that…
Google’s Threat Analysis Group (TAG) tracks actors involved in information operations (IO), government backed attacks and financially motivated abuse. For years, TAG has been tracking the activities of commercial spyware vendors to protect users. Today, we actively track more than 30 vendors with varying levels of sophistication and public exposure selling exploits or surveillance capabilities to government backed actors. These vendors are enabling the proliferation of dangerous hacking tools, arming governments that would not be able to develop these capabilities in-house. While use of surveillance technologies may be legal under national or international laws, they are often found to be used by governments to target dissidents, journalists, human rights workers and opposition party politicians.
Vulkan engineers have worked for Russian military and intelligence agencies to support hacking operations, prepare for attacks on infrastructure and spread disinformation
The 3CX VoIP Desktop Application has been compromised to deliver malware via legitimate 3CX updates. Huntress has been investigating this incident and working to validate and assess the current supply chain threat to the security community.
A security issue arose on Update 7, version numbers 18.12.407 & 18.12.416 only for our Electron Windows App. Check this post for more info.
The 3CX supply chain attack, gives us an opportunity to analyze a trojanized macOS application
North Korean-sponsored actors believed to be linked to attack that Trojanized several versions of 3CX DesktopApp
What Happened On March 29, 2023, Falcon OverWatch observed unexpected malicious activity emanating from a legitimate …
A digitally signed and trojanized version of the 3CX Voice Over Internet Protocol (VOIP) desktop client is reportedly being used to target the company's customers in an ongoing supply chain attack.
A Trojanized version of the popular VOIP/PBX software is in the news; here’s what hunters and defenders are doing
We discovered a new malware, which we named “OpcJacker” (due to its opcode configuration design and its cryptocurrency hijacking ability), that has been distributed in the wild since the second half of 2022.
In response to the growing public attention given to ChatGPT, the Europol Innovation Lab organised a number of workshops with subject matter experts from across Europol to explore how criminals can abuse large language models (LLMs) such as ChatGPT, as well as how it may assist investigators in their daily work.
This guide provides steps organizations can take to assess whether users have been targeted or compromised by threat actors exploiting CVE-2023-23397.
