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Category — cyber espionage
North Korean Hackers Use EtherHiding to Hide Malware Inside Blockchain Smart Contracts

North Korean Hackers Use EtherHiding to Hide Malware Inside Blockchain Smart Contracts

Oct 16, 2025 Malware / Blockchain
A threat actor with ties to the Democratic People's Republic of Korea (aka North Korea) has been observed leveraging the EtherHiding technique to distribute malware and enable cryptocurrency theft, marking the first time a state-sponsored hacking group has embraced the method. The activity has been attributed by Google Threat Intelligence Group (GTIG) to a threat cluster it tracks as UNC5342 , which is also known as CL-STA-0240 (Palo Alto Networks Unit 42), DeceptiveDevelopment (ESET), DEV#POPPER (Securonix), Famous Chollima (CrowdStrike), Gwisin Gang (DTEX), Tenacious Pungsan (Datadog), and Void Dokkaebi (Trend Micro). The attack wave is part of a long-running campaign codenamed Contagious Interview , wherein the attackers approach potential targets on LinkedIn by posing as recruiters or hiring managers, and trick them into running malicious code under the pretext of a job assessment after shifting the conversation to Telegram or Discord. The end goal of these efforts is to ...
Chinese Threat Group 'Jewelbug' Quietly Infiltrated Russian IT Network for Months

Chinese Threat Group 'Jewelbug' Quietly Infiltrated Russian IT Network for Months

Oct 15, 2025 Cyber Espionage / Threat Intelligence
A threat actor with ties to China has been attributed to a five-month-long intrusion targeting a Russian IT service provider, marking the hacking group's expansion to the country beyond Southeast Asia and South America. The activity, which took place from January to May 2025, has been attributed by Broadcom-owned Symantec to a threat actor it tracks as Jewelbug , which it said overlaps with clusters known as CL-STA-0049 (Palo Alto Networks Unit 42), Earth Alux (Trend Micro), and REF7707 (Elastic Security Labs). The findings suggest Russia is not off-limits for Chinese cyber espionage operations despite increased "military, economic, and diplomatic" relations between Moscow and Beijing over the years. "Attackers had access to code repositories and software build systems that they could potentially leverage to carry out supply chain attacks targeting the company's customers in Russia," the Symantec Threat Hunter Team said in a report shared with The ...
Chinese Hackers Exploit ArcGIS Server as Backdoor for Over a Year

Chinese Hackers Exploit ArcGIS Server as Backdoor for Over a Year

Oct 14, 2025 Cyber Espionage / Network Security
Threat actors with ties to China have been attributed to a novel campaign that compromised an ArcGIS system and turned it into a backdoor for more than a year. The activity, per ReliaQuest, is the handiwork of a Chinese state-sponsored hacking group called Flax Typhoon , which is also tracked as Ethereal Panda and RedJuliett. According to the U.S. government, it's assessed to be a publicly-traded, Beijing-based company known as Integrity Technology Group. "The group cleverly modified a geo-mapping application's Java server object extension (SOE) into a functioning web shell," the cybersecurity company said in a report shared with The Hacker News. "By gating access with a hardcoded key for exclusive control and embedding it in system backups, they achieved deep, long-term persistence that could survive a full system recovery." Flax Typhoon is known for living up to the "stealth" in its tradecraft by extensively incorporating living-off-the-l...
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2025 Pentest Report: How Attackers Break In

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Discover real exploitable vulnerabilities and defense gaps in our free Cybersecurity Awareness Month report.
From HealthKick to GOVERSHELL: The Evolution of UTA0388's Espionage Malware

From HealthKick to GOVERSHELL: The Evolution of UTA0388's Espionage Malware

Oct 09, 2025 Cyber Espionage / Artificial Intelligence
A China-aligned threat actor codenamed UTA0388 has been attributed to a series of spear-phishing campaigns targeting North America, Asia, and Europe that are designed to deliver a Go-based implant known as GOVERSHELL . "The initially observed campaigns were tailored to the targets, and the messages purported to be sent by senior researchers and analysts from legitimate-sounding, completely fabricated organizations," Volexity said in a Wednesday report. "The goal of these spear phishing campaigns was to socially engineer targets into clicking links that led to a remotely hosted archive containing a malicious payload." Since then, the threat actor behind the attacks is said to have leveraged different lures and fictional identities, spanning several languages, including English, Chinese, Japanese, French, and German. Early iterations of the campaigns have been found to embed links to phishing content either hosted on a cloud-based service or their own infrastruc...
New Report Links Research Firms BIETA and CIII to China’s MSS Cyber Operations

New Report Links Research Firms BIETA and CIII to China's MSS Cyber Operations

Oct 06, 2025 Network Security / Cyber Espionage
A Chinese company named the Beijing Institute of Electronics Technology and Application (BIETA) has been assessed to be likely led by the Ministry of State Security (MSS). The assessment comes from evidence that at least four BIETA personnel have clear or possible links to MSS officers and their relationship with the University of International Relations, which is known to share links with the MSS, according to Recorded Future. The names of the four individuals include Wu Shizhong, He Dequan, You Xingang, and Zhou Linna. "BIETA and its subsidiary, Beijing Sanxin Times Technology Co., Ltd. (CIII), research, develop, import, and sell technologies that almost certainly support intelligence, counterintelligence, military, and other missions relevant to China's national development and security," the company said in a report shared with The Hacker News. "Their activities include researching methods of steganography that can likely support covert communications (COVCOM) a...
Confucius Hackers Hit Pakistan With New WooperStealer and Anondoor Malware

Confucius Hackers Hit Pakistan With New WooperStealer and Anondoor Malware

Oct 02, 2025 Malware / Cyber Espionage
The threat actor known as Confucius has been attributed to a new phishing campaign that has targeted Pakistan with malware families like WooperStealer and Anondoor. "Over the past decade, Confucius has repeatedly targeted government agencies, military organizations, defense contractors, and critical industries -- especially in Pakistan – using spear-phishing and malicious documents as initial access vectors," Fortinet FortiGuard Labs researcher Cara Lin said . Confucius is a long-running hacking group that's believed to have been active since 2013 and operating across South Asia. Recent campaigns undertaken by the threat actor have employed a Python-based backdoor called Anondoor, signaling an evolution of the group's tradecraft and its technical agility. One of the attack chains documented by Fortinet targeted users in Pakistan sometime in December 2024, tricking recipients into opening a .PPSX file, which then triggers the delivery of WooperStealer using DLL ...
Phantom Taurus: New China-Linked Hacker Group Hits Governments With Stealth Malware

Phantom Taurus: New China-Linked Hacker Group Hits Governments With Stealth Malware

Sep 30, 2025 Cyber Espionage / Malware
Government and telecommunications organizations across Africa, the Middle East, and Asia have emerged as the target of a previously undocumented China-aligned nation-state actor dubbed Phantom Taurus over the past two-and-a-half years. "Phantom Taurus' main focus areas include ministries of foreign affairs, embassies, geopolitical events, and military operations," Palo Alto Networks Unit 42 researcher Lior Rochberger said . "The group's primary objective is espionage. Its attacks demonstrate stealth, persistence, and an ability to quickly adapt their tactics, techniques, and procedures (TTPs)." It's worth pointing out that the hacking group was first detailed by the cybersecurity company back in June 2023 under the moniker CL-STA-0043 . Then last May, the threat cluster was graduated to a temporary group, TGR-STA-0043 , following revelations about its sustained cyber espionage efforts aimed at governmental entities since at least late 2022 as part of...
UNC5221 Uses BRICKSTORM Backdoor to Infiltrate U.S. Legal and Technology Sectors

UNC5221 Uses BRICKSTORM Backdoor to Infiltrate U.S. Legal and Technology Sectors

Sep 24, 2025 Cyber Espionage / Threat Intelligence
Companies in the legal services, software-as-a-service (SaaS) providers, Business Process Outsourcers (BPOs), and technology sectors in the U.S. have been targeted by a suspected China-nexus cyber espionage group to deliver a known backdoor referred to as BRICKSTORM . The activity, attributed to UNC5221 and closely related, suspected China-nexus threat clusters, is designed to facilitate persistent access to victim organizations for over a year, Mandiant and Google Threat Intelligence Group (GTIG) said in a new report shared with The Hacker News. It's assessed that the objective of BRICKSTORM targeting SaaS providers is to gain access to downstream customer environments or the data SaaS providers host on their customers' behalf, while the targeting of the U.S. legal and technological spheres is likely an attempt to gather information related to national security and international trade, as well as steal intellectual property to advance the development of zero-day exploits. ...
UNC1549 Hacks 34 Devices in 11 Telecom Firms via LinkedIn Job Lures and MINIBIKE Malware

UNC1549 Hacks 34 Devices in 11 Telecom Firms via LinkedIn Job Lures and MINIBIKE Malware

Sep 19, 2025 Cyber Espionage / Threat Intelligence
An Iran-nexus cyber espionage group known as UNC1549 has been attributed to a new campaign targeting European telecommunications companies, successfully infiltrating 34 devices across 11 organizations as part of a recruitment-themed activity on LinkedIn. Swiss cybersecurity company PRODAFT is tracking the cluster under the name Subtle Snail . It's assessed to be affiliated with Iran's Islamic Revolutionary Guard Corps (IRGC). The targeted 11 companies are located in Canada, France, the United Arab Emirates, the United Kingdom, and the United States. "The group operates by posing as HR representatives from legitimate entities to engage employees, then compromises them through deployment of a MINIBIKE backdoor variant that communicates with command-and-control (C2) infrastructure proxied through Azure cloud services to bypass detection," the company said in a report shared with The Hacker News. UNC1549 (aka TA455), believed to be active since at least June 2022, ...
Russian Hackers Gamaredon and Turla Collaborate to Deploy Kazuar Backdoor in Ukraine

Russian Hackers Gamaredon and Turla Collaborate to Deploy Kazuar Backdoor in Ukraine

Sep 19, 2025 Malware / Cyber Espionage
Cybersecurity researchers have discerned evidence of two Russian hacking groups Gamaredon and Turla collaborating together to target and co-comprise Ukrainian entities. Slovak cybersecurity company ESET said it observed the Gamaredon tools PteroGraphin and PteroOdd being used to execute Turla group's Kazuar backdoor on an endpoint in Ukraine in February 2025, indicating that Turla is very likely actively collaborating with Gamaredon to gain access to specific machines in Ukraine and deliver the Kazuar backdoor.  "PteroGraphin was used to restart the Kazuar v3 backdoor, possibly after it crashed or was not launched automatically," ESET said in a report shared with The Hacker News. "Thus, PteroGraphin was probably used as a recovery method by Turla." In a separate instance in April and June 2025, ESET said it also detected the deployment of Kazuar v2 through two other Gamaredon malware families tracked as PteroOdd and PteroPaste. Both Gamaredon (aka Aqua B...
Chinese TA415 Uses VS Code Remote Tunnels to Spy on U.S. Economic Policy Experts

Chinese TA415 Uses VS Code Remote Tunnels to Spy on U.S. Economic Policy Experts

Sep 17, 2025 Cyber Espionage / Malware
A China-aligned threat actor known as TA415 has been attributed to spear-phishing campaigns targeting the U.S. government, think tanks, and academic organizations utilizing U.S.-China economic-themed lures. "In this activity, the group masqueraded as the current Chair of the Select Committee on Strategic Competition between the United States and the Chinese Communist Party (CCP), as well as the U.S.-China Business Council, to target a range of individuals and organizations predominantly focused on U.S.-China relations, trade, and economic policy," Proofpoint said in an analysis. The enterprise security company said the activity, observed throughout July and August 2025, is likely an effort on part of Chinese state-sponsored threat actors to facilitate intelligence gathering amid ongoing U.S.-China trade talks, adding the hacking group shares overlaps with a threat cluster tracked broadly under the names APT41 and Brass Typhoon (formerly Barium). The findings come days...
Critical CVE-2025-5086 in DELMIA Apriso Actively Exploited, CISA Issues Warning

Critical CVE-2025-5086 in DELMIA Apriso Actively Exploited, CISA Issues Warning

Sep 12, 2025 Vulnerability / Cyber Espionage
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a critical security flaw impacting Dassault Systèmes DELMIA Apriso Manufacturing Operations Management (MOM) software to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. The vulnerability, tracked as CVE-2025-5086 , carries a CVSS score of 9.0 out of 10.0. According to Dassault, the issue impacts versions from Release 2020 through Release 2025. "Dassault Systèmes DELMIA Apriso contains a deserialization of untrusted data vulnerability that could lead to a remote code execution," the agency said in an advisory. The addition of CVE-2025-5086 to the KEV catalog comes after the SANS Internet Storm Center reported seeing exploitation attempts targeting the flaw that originate from the IP address 156.244.33[.]162 , which geolocates to Mexico. The attacks involve sending an HTTP request to the "/apriso/WebServices/FlexNetOperationsService.sv...
China-Linked APT41 Hackers Target U.S. Trade Officials Amid 2025 Negotiations

China-Linked APT41 Hackers Target U.S. Trade Officials Amid 2025 Negotiations

Sep 10, 2025 Malware / Cyber Espionage
The House Select Committee on China has formally issued an advisory warning of an "ongoing" series of highly targeted cyber espionage campaigns linked to the People's Republic of China (PRC) amid contentious U.S.–China trade talks. "These campaigns seek to compromise organizations and individuals involved in U.S.-China trade policy and diplomacy, including U.S. government agencies, U.S. business organizations, D.C. law firms and think tanks, and at least one foreign government," the committee said . The committee noted that suspected threat actors from China impersonated Republican Party Congressman John Robert Moolenaar in phishing emails sent to trusted counterparts with an aim to deceive them and trick them into opening files and links that would grant them unauthorized access to their systems and sensitive information without their knowledge. The end goal of the attacks was to steal valuable data by abusing software and cloud services to cover up traces...
45 Previously Unreported Domains Expose Longstanding Salt Typhoon Cyber Espionage

45 Previously Unreported Domains Expose Longstanding Salt Typhoon Cyber Espionage

Sep 09, 2025 Cyber Espionage / Telecom Security
Threat hunters have discovered a set of previously unreported domains, some going back to May 2020, that are associated with China-linked threat actors Salt Typhoon and UNC4841. "The domains date back several years, with the oldest registration activity occurring in May 2020, further confirming that the 2024 Salt Typhoon attacks were not the first activity carried out by this group," Silent Push said in a new analysis shared with The Hacker News. The identified infrastructure, totaling 45 domains, has also been identified as sharing some level of overlap with another China-associated hacking group tracked as UNC4841 , which is best known for its zero-day exploitation of a security flaw in Barracuda Email Security Gateway (ESG) appliances (CVE-2023-2868, CVSS score: 9.8). Salt Typhoon , active since 2019, drew widespread attention last year for its targeting of telecommunications services providers in the U.S. Believed to be operated by China's Ministry of State Secur...
Noisy Bear Campaign Targeting Kazakhstan Energy Sector Outed as a Planned Phishing Test

Noisy Bear Campaign Targeting Kazakhstan Energy Sector Outed as a Planned Phishing Test

Sep 06, 2025 Malware / Cyber Espionage
A threat actor possibly of Russian origin has been attributed to a new set of attacks targeting the energy sector in Kazakhstan. The activity, codenamed Operation BarrelFire, is tied to a new threat group tracked by Seqrite Labs as Noisy Bear. The threat actor has been active since at least April 2025. "The campaign is targeted towards employees of KazMunaiGas or KMG where the threat entity delivered a fake document related to the KMG IT department, mimicking official internal communication and leveraging themes such as policy updates, internal certification procedures, and salary adjustments," security researcher Subhajeet Singha said . The infection chain begins with a phishing email containing a ZIP attachment, which includes a Windows shortcut (LNK) downloader, a decoy document related to KazMunaiGas, and a README.txt file with instructions written in both Russian and Kazakh to run a program named "KazMunayGaz_Viewer." The email, per the cybersecurity compa...
Iranian Hackers Exploit 100+ Embassy Email Accounts in Global Phishing Targeting Diplomats

Iranian Hackers Exploit 100+ Embassy Email Accounts in Global Phishing Targeting Diplomats

Sep 03, 2025 Data Breach / Cyber Espionage
An Iran-nexus group has been linked to a "coordinated" and "multi-wave" spear-phishing campaign targeting the embassies and consulates in Europe and other regions across the world. The activity has been attributed by Israeli cybersecurity company Dream to Iranian-aligned operators connected to broader offensive cyber activity undertaken by a group known as Homeland Justice . "Emails were sent to multiple government recipients worldwide, disguising legitimate diplomatic communication," the company said . "Evidence points toward a broader regional espionage effort aimed at diplomatic and governmental entities during a time of heightened geopolitical tension." The attack chains involve the use of spear-phishing emails with themes related to geopolitical tensions between Iran and Israel to send a malicious Microsoft Word that, when opened, urges recipients to "Enable Content" in order to execute an embedded Visual Basic for Application...
Researchers Warn of MystRodX Backdoor Using DNS and ICMP Triggers for Stealthy Control

Researchers Warn of MystRodX Backdoor Using DNS and ICMP Triggers for Stealthy Control

Sep 02, 2025 Cyber Espionage / Network Security
Cybersecurity researchers have disclosed a stealthy new backdoor called MystRodX that comes with a variety of features to capture sensitive data from compromised systems. "MystRodX is a typical backdoor implemented in C++, supporting features like file management, port forwarding, reverse shell, and socket management," QiAnXin XLab said in a report published last week. "Compared to typical backdoors, MystRodX stands out in terms of stealth and flexibility." MystRodX, also called ChronosRAT, was first documented by Palo Alto Networks Unit 42 last month in connection with a threat activity cluster called CL-STA-0969 that it said exhibits overlaps with a China-nexus cyber espionage group dubbed Liminal Panda. The malware's stealth stems from the use of various levels of encryption to obscure source code and payloads, while its flexibility allows it to dynamically enable different functions based on a configuration, such as choosing TCP or HTTP for network co...
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