Security Joes Incident Response team recently became aware of a set of relatively new CVEs that were released at the end of March 2023. Surprisingly, these vulnerabilities have received little to no media coverage regarding their ease of exploitation and the potential security implications they pose to any cluster running a non-native object storage.…
Tag: CHINA
On June 15, 2023, Mandiant released a blog post detailing an 8-month-long global espionage campaign conducted by a Chinese-nexus threat group tracked as UNC4841. In this follow-up blog post, we will detail additional tactics, techniques, and procedures (TTPs) employed by UNC4841 that have since been uncovered through Mandiant’s incident response engagements, as well as through collaborative efforts with Barracuda Networks and our International Government partners. …
Intro
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Resecurity has identified a large-scale smishing campaign targeting US Citizens. Previous incidents have impacted victims from the U.K, Poland, Sweden, Italy, Indonesia, Japan, and other countries. The threat group behind the campaign was skillfully impersonating the Royal Mail, New Zealand Postal Service (NZPOST), Correos (Spain), PostNord, Poste Italiane and the Italian Revenue Service (Agenzia delle Entrate).…
In this entry, we summarize the security analyses and investigations done on phishing-as-a-service 16shop through the years. We also outline the partnership between Trend Micro and Interpol in taking down the main administrators and servers of this massive phishing campaign.
Phishing has always been one of the most prevalent and relentless cyberthreats.…
Summary
Brute Ratel C4 is a Red Team & Adversary Simulation software that can be considered an alternative to Cobalt Strike. In this blog post, we’re presenting a technical analysis of a Brute Ratel badger/agent that doesn’t implement all the recent features of the framework. There aren’t a lot of Brute Ratel samples available in the wild.…
Aqua Nautilus discovered a new campaign that exploits the Openfire vulnerability (CVE-2023-32315), that was disclosed in May of this year, to deploy Kinsing malware and a cryptominer. This vulnerability leads to a path traversal attack, which grants an unauthenticated user access to the Openfire setup environment.…
Summary
Microsoft has identified a nation-state activity group tracked as Flax Typhoon, based in China, that is targeting dozens of organizations in Taiwan with the likely intention of performing espionage. Flax Typhoon gains and maintains long-term access to Taiwanese organizations’ networks with minimal use of malware, relying on tools built into the operating system, along with some normally benign software to quietly remain in these networks.…
Executive Summary
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In March 2023, Lumen Black Lotus Labs reported on a complex campaign called “HiatusRAT” that infected over 100 edge networking devices globally. The campaign leveraged edge routers, or “living on the edge” access, to passively collect traffic and functioned as a covert network of command and control (C2) infrastructure. …
By Aleksandar Milenkoski and Tom Hegel
Executive Summary SentinelLabs has identified suspected-Chinese malware and infrastructure potentially involved in China-associated operations directed at the gambling sector within Southeast Asia. The threat actors drop Adobe Creative Cloud, Microsoft Edge, and McAfee VirusScan executables vulnerable to DLL hijacking to deploy Cobalt Strike beacons.…Web servers are vulnerable to attacks because they are publicly accessible to a wide range of users for the purpose of delivering web services. This accessibility makes them a prime target for threat actors. AhnLab Security Emergency response Center (ASEC) is monitoring attacks targeting vulnerable web servers that have not been patched or are poorly managed.…
12.20pm BST, 22 August 2023: Updated with additional IoCs
A previously unknown advanced persistent threat (APT) group used the legitimate Cobra DocGuard software to carry out a supply chain attack with the goal of deploying the Korplug backdoor (aka PlugX) onto victim computers.
In the course of this attack, the attackers used malware signed with a legitimate Microsoft certificate.…
Mandiant recently published a blog post about the compromise of Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway Appliances related to the zero-day vulnerability tracked as CVE-2023-3519. CVE-2023-3519 is a zero-day vulnerability that can enable remote code execution, and has been observed being exploited in the wild by a threat actor consistent with a China-nexus based on known capabilities and history of targeting Citrix ADCs.…
New Insikt Group research examines RedHotel, a Chinese state-sponsored threat activity group that stands out due to its persistence, operational intensity, and global reach. RedHotel’s operations span 17 countries in Asia, Europe, and North America from 2021 to 2023. Its targets encompass academia, aerospace, government, media, telecommunications, and research sectors.…
Cisco Talos discovered an unknown threat actor, seemingly of Vietnamese origin, conducting a ransomware operation that began at least as early as June 4, 2023.
This ongoing attack uses a variant of the Yashma ransomware likely to target multiple geographic areas by mimicking WannaCry characteristics.
The threat actor uses an uncommon technique to deliver the ransom note.…
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On a bi-weekly basis, FortiGuard Labs gathers data on ransomware variants of interest that have been gaining traction within our datasets and the OSINT community. The Ransomware Roundup report aims to provide readers with brief insights into the evolving ransomware landscape and the Fortinet solutions that protect against those variants.…
Trustwave SpiderLabs discovered a new version of the Rilide Stealer extension targeting Chromium-based browsers such as Google Chrome, Microsoft Edge, Brave, and Opera. This malware uses a creative way to work around the Chrome Extension Manifest V3 from Google which is aimed at blocking the installation of malicious extensions for chromium browsers.…
Reptile is an open-source kernel module rootkit that targets Linux systems and is publicly available on GitHub. [1] Rootkits are malware that possess the capability to conceal themselves or other malware. They primarily target files, processes, and network communications for their concealment. Reptile’s concealment capabilities include not only its own kernel module but also files, directories, file contents, processes, and network traffic.…
In the past, AhnLab Security Emergency response Center (ASEC) had shared the “SparkRAT Being Distributed Within a Korean VPN Installer” [1] case post and the “Analysis of Attack Cases: From Korean VPN Installations to MeshAgent Infections” [2] case post which covered the SparkRAT malware being distributed through a Korean VPN service provider’s installer.…
What are WyrmSpy and DragonEgg surveillanceware?
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WyrmSpy and DragonEgg are two advanced Android surveillanceware that Lookout attributes to high-profile Chinese threat group APT41, also known as Double Dragon, BARIUM, and Winnti.
While APT41 is mostly known for exploiting web-facing applications and infiltrating traditional endpoint devices, these malware are rare reported instances of the group exploiting mobile platforms.…
“And us? No money, no people, nothing. We have only a conscience and a tiny bit of power.”
“If we fall, please still believe: the Bauhinia is still beautiful1. Please don’t abandon Hong Kong.”
— Quotes from “A Distress Call From Hong Kong”, manifesto letter disseminated by the operation’s actors in November 2019, and purportedly written by alleged grassroots volunteers fighting against the protesters’ “mob violence”.…
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