The Hacker News | #1 Trusted Source for Cybersecurity News — Index Page

Individuals and organizations in Cambodia have emerged as the target of a new campaign that delivers an open-source remote access trojan (RAT) called Spark RAT . "The samples employ diverse lure themes, suggesting an effort to appeal to a broad range of potential victims. These include government notices, public health materials, real estate-related content, and other topics," Acronis Threat Research Unit (TRU) researchers Darrel Virtusio and Subhajeet Singha said in an analysis published Wednesday. The multi-stage attack is notable for employing the bring your own vulnerable driver (BYOVD) technique to load a legitimate-but-vulnerable driver associated with OPSWAT AppRemover ("ardrv.sys") to escalate privileges and neutralize security software. Attack chains likely make use of targeting phishing emails to distribute compressed archives containing an Inno Setup executable and trick recipients into running it using wide-ranging lures, including Cambodian gove...

Threat actors linked by Arctic Wolf to Dark Caracal with medium confidence deployed a previously undocumented Go-based malware framework, GoCaracal , during a June 2026 intrusion at an unnamed communications organization in Venezuela. GoCaracal provides operators with remote shell access and payload execution, while the extended profile adds browser data theft, keylogging, remote desktop control, and SOCKS5 proxying. Arctic Wolf also published a YARA rule and representative indicators of compromise (IoCs) that defenders can use to hunt for the malware. "We assess with medium confidence that this activity is linked to Dark Caracal," Arctic Wolf said. Arctic Wolf based the assessment on Bandook use, recurring Delphi-loader characteristics, Spanish-language financial lures, malicious SVGs, URL shorteners, document-themed infrastructure, hosting-provider preferences, and Latin American targeting. In its  technical analysis of GoCaracal , Arctic Wolf said the malware ap...

Academic researchers have disclosed a Rowhammer attack impacting NVIDIA workstation GPUs with GDDR6 memory that defeats error correction codes (ECC), the mitigation NVIDIA recommends against GPU Rowhammer, and enables denial-of-service (DoS) and privilege escalation to a root shell. Dubbed GPUThor , the attack was developed by researchers at the University of Toronto, who hammered four DRAM banks for 24 hours each on four Ampere-class cards, inducing bit flips on each. The following GPUs were tested and found vulnerable - RTX A6000 (48 GB GDDR6) RTX A5000 (24 GB GDDR6) RTX A4500 (20 GB GDDR6) RTX A4000 (16 GB GDDR6) Mounting the attack requires the ability to launch an unprivileged CUDA kernel on the target GPU, either as a co-tenant on a shared card or as untrusted code on a single-tenant machine. The researchers advise avoiding cross-tenant GPU sharing, monitoring ECC error counters, and restricting untrusted CUDA workloads. "Recently, researchers at the U...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added six flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, including a high-severity security vulnerability impacting Citrix NetScaler ADC and NetScaler Gateway, citing evidence of active exploitation. The vulnerabilities are listed below - CVE-2019-1068 - A remote code execution vulnerability in  Microsoft SQL Server that could allow an attacker to execute code in the context of the SQL Server Database Engine service account. CVE-2026-8452 - An improper restriction of operations within the bounds of a memory buffer vulnerability in Citrix NetScaler ADC and NetScaler Gateway that could lead to denial-of-service. CVE-2022-0995 - An out-of-bounds memory write vulnerability in  Linux Kernel that could allow a local user to gain privileged access or cause a denial of service on the system. CVE-2015-5287 - A privilege escalation vulnerability in  Red Hat Automatic B...

The U.S. Department of Justice (DoJ) on Wednesday announced the disruption of two hacking platforms named QScan and QTRouter operated by Chinese threat actors to target critical infrastructure and other sensitive networks in the country. The activity has been attributed to a Chinese state-sponsored group known as QTFY, employed by Nanjing Xinjiuwei Network Technology Company (南京鑫玖维网络科技有限公司).  "Among the targets of QTFY are the National Aeronautics and Space Administration, Federal Reserve, Department of Energy, Department of Justice, Department of Health and Human Services, National Institutes of Health, and the U.S. Senate," DoJ said. Damon Rouse, a security researcher at Lumen Black Lotus Labs who has been tracking the activity for over the past 18 months, told The Hacker News that the digital quartermaster has been active since May 2018. Nanjing counts both China's Ministry of State Security (MSS) and the People's Liberation Army (PLA) among its customers. ...