7/18/2025

CyberChannel: Week of 7/13/25

Google Gemini Flaw Exposes Users to Advanced Phishing via Email Summaries 

A critical Google Gemini flaw has been identified, allowing sophisticated phishing attacks through email summaries. This vulnerability leverages "prompt-injection" techniques, where attackers embed hidden malicious instructions within emails using HTML/CSS. When Google Gemini generates AI summaries, it unknowingly displays these harmful prompts as legitimate content, potentially directing users to dangerous phishing sites. Unlike traditional spam, these cybersecurity threats bypass standard filters due to their trusted appearance within Gemini's interface, creating a significant risk for users despite no current evidence of in-the-wild exploitation.

Gigabyte Firmware Flaw: Malware Can Disable Secure Boot & Gain Full Control 

A critical UEFI firmware vulnerability impacts numerous Gigabyte motherboards (legacy Intel-based), allowing malware to bypass Secure Boot. This serious security flaw enables attackers to execute code in System Management Mode (SMM), gaining persistent, stealthy control over the system, undetected by standard operating system defenses. While requiring initial administrative access, exploitation occurs early in the boot process. Gigabyte urges users to perform a firmware update to mitigate this significant security risk.  

Interlock Ransomware Unleashes "FileFix" Attack for Stealthy Malware Delivery 

The Interlock ransomware group is now using a novel "FileFix" attack to distribute its malware, including advanced PHP and Node.js Remote Access Trojans (RATs). This sophisticated cybersecurity threat compromises legitimate websites, tricking users into a fake "human verification" process that coaxes them into executing malicious commands, effectively bypassing traditional security. Once active, the Interlock RAT establishes persistence, performs reconnaissance, and leverages services like Cloudflare Tunnel for stealthy command-and-control, representing a significant and evolving malware delivery method impacting various industries. 

Police Bust "Diskstation" Ransomware Gang Targeting Synology NAS Devices 

An international law enforcement operation led by Europol has successfully dismantled the "Diskstation" ransomware gang, which specifically targeted Synology NAS devices globally since 2021. This cybercrime group, operating from Romania, exploited internet-exposed Network-Attached Storage (NAS) devices to encrypt data and demand significant ransomware payments. Through forensic analysis and blockchain tracing, police identified key suspects, leading to raids and the arrest of the alleged primary operator 

North Korean XORIndex Malware Found in 67 Malicious npm Packages 

North Korean threat actors are exploiting the npm Registry with 67 malicious packages, deploying advanced XORIndex malware within their "Contagious Interview" cybersecurity campaign. This highly obfuscated malware specifically targets JavaScript developers in the open-source ecosystem, designed to exfiltrate critical host telemetry and cryptocurrency wallet credentials.  

CVE-2025-25257: FortiWeb Vulnerability Enables Unauthenticated RCE Attacks 

A critical Fortinet FortiWeb vulnerability (CVE-2025-25257) is allowing unauthenticated remote code execution (RCE) due to a SQL injection flaw. Attackers are actively exploiting this in the wild, deploying webshells on unpatched FortiWeb appliances via public Proof-of-Concept exploits. These successful FortiWeb hacks grant attackers persistent access and control over the affected devices. Organizations must patch immediately or disable the administrative interface to mitigate this severe cybersecurity risk. 

U.S. Army Soldier Pleads Guilty to Hacking & Extortion of Tech/Telecom Firms 

A former U.S. Army soldier, Cameron John Wagenius ("kiberphan0m"), has pleaded guilty to hacking and extortion charges, targeting 10 prominent tech and telecom firms. While on active duty, Wagenius orchestrated data breaches, stealing sensitive data like customer records and call logs using tools such as SSH Brute. He then attempted to extort over $1 million in ransom from these companies, threatening to leak the stolen information on cybercrime forums. Wagenius also admitted to unlawfully transferring confidential phone records and is linked to the Snowflake data breach, highlighting a significant cybersecurity threat from inside actors. 

Salt Typhoon Breaches National Guard: Chinese Hackers Steal Network Configs 

A Chinese state-sponsored hacking group, Salt Typhoon, successfully breached a U.S. Army National Guard network for nine months, stealing critical network configurations, administrator credentials, and service members' personal data. This cybersecurity breach highlights the persistent threat from Chinese hackers who target old vulnerabilities in networking devices. Salt Typhoon, linked to China's Ministry of State Security, has a history of compromising U.S. government and critical infrastructure, prompting the Department of Homeland Security (DHS) to issue warnings and urge immediate patching and stronger access controls to combat these sophisticated APT attacks.  

New AI Malware Threat: LameHug Uses LLMs for Dynamic Data Exfiltration 

A new cybersecurity threat, LameHug malware, is emerging, characterized by its innovative use of AI Large Language Models (LLMs) to craft Windows data-theft commands in real-time. This sophisticated AI-powered malware dynamically generates precise commands for data exfiltration from compromised systems. Leveraging LLM capabilities, LameHug can adapt its attack methods on the fly, posing a significant challenge to traditional security defenses and marking an advanced step in how threat actors weaponize artificial intelligence for more potent and evasive malware attacks. 

CVE-2025-5777: Citrix Bleed 2 Actively Exploited Before Public PoCs 

A critical Citrix Bleed 2 vulnerability (CVE-2025-5777) in Citrix NetScaler ADC and Gateway appliances was actively exploited by threat actors for weeks, even as Citrix denied attacks. This security flaw (a memory disclosure vulnerability) allows attackers to bypass MFA and hijack user sessions by leaking sensitive data like session tokens. With public PoC exploits now available, widespread exploitation has led to its inclusion in CISA's Known Exploited Vulnerabilities catalog. Organizations must urgently patch Citrix Bleed 2 and terminate all sessions to mitigate this severe cybersecurity risk and prevent further Citrix hacks. 


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