<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>DarkBit on DanSec Daily</title><link>https://blog.dansec.red/actors/darkbit/</link><description>Recent content in DarkBit on DanSec Daily</description><generator>Hugo</generator><language>en-gb</language><lastBuildDate>Tue, 12 Aug 2025 00:00:00 +0000</lastBuildDate><atom:link href="https://blog.dansec.red/actors/darkbit/rss.xml" rel="self" type="application/rss+xml"/><item><title>Cybersecurity Brief – 2025-08-12</title><link>https://blog.dansec.red/posts/2025-08-12-cybersecurity-news/</link><pubDate>Tue, 12 Aug 2025 00:00:00 +0000</pubDate><guid>https://blog.dansec.red/posts/2025-08-12-cybersecurity-news/</guid><description>&lt;h2 id="major-incidents-or-breaches"&gt;Major Incidents or Breaches&lt;/h2&gt;&#10;&lt;ul&gt;&#10;&lt;li&gt;Connex Credit Union disclosed a data breach affecting 172,000 members, with attackers stealing personal and financial information after breaching its systems.&lt;/li&gt;&#10;&lt;li&gt;The Netherlands&amp;rsquo; National Cyber Security Centre (NCSC) reported exploitation of Citrix NetScaler vulnerability CVE-2025-6543 to breach critical organisations in the country.&lt;/li&gt;&#10;&lt;li&gt;Air France experienced a data breach resulting in the leak of frequent flyer data (as per Check Point’s weekly threat bulletin).&lt;/li&gt;&#10;&lt;li&gt;A major automaker’s dealership platform used by over 1,000 US dealerships was found to be vulnerable, allowing car hacking and personal data theft, including the ability for unauthorised remote vehicle unlocking.&lt;/li&gt;&#10;&lt;li&gt;Two hackers reportedly breached North Korean state-sponsored group Kimsuky, stealing and leaking internal data.&lt;/li&gt;&#10;&lt;li&gt;Law enforcement, in collaboration with international partners, took down infrastructure and seized over $1 million associated with the BlackSuit (Royal) ransomware group.&lt;/li&gt;&#10;&lt;li&gt;Over 29,000 Microsoft Exchange servers remain unpatched against a high-severity vulnerability, leaving them exposed to lateral movement and cloud environment compromise.&lt;/li&gt;&#10;&lt;/ul&gt;&#10;&lt;h2 id="newly-discovered-vulnerabilities"&gt;Newly Discovered Vulnerabilities&lt;/h2&gt;&#10;&lt;ul&gt;&#10;&lt;li&gt;Researchers identified new security flaws in the TETRA (Terrestrial Trunked Radio) communications protocol, including weaknesses in its proprietary end-to-end encryption, impacting law enforcement and critical infrastructure communications.&lt;/li&gt;&#10;&lt;li&gt;A critical vulnerability in the OPC UA industrial protocol was disclosed, exposing utilities and factories to risk despite the protocol’s use of complex cryptography.&lt;/li&gt;&#10;&lt;li&gt;A sandbox escape with remote code execution was discovered in Google Chrome, earning a $250,000 bug bounty.&lt;/li&gt;&#10;&lt;li&gt;A path traversal vulnerability in WinRAR (CVE-2025-8088) was exploited as a zero-day by the Russian &amp;lsquo;RomCom&amp;rsquo; group, targeting financial, defence, manufacturing, and logistics sectors in Europe and Canada.&lt;/li&gt;&#10;&lt;li&gt;A BadUSB attack technique, dubbed BadCam, was demonstrated against Lenovo Linux webcams, allowing persistent compromise via malicious USB devices.&lt;/li&gt;&#10;&lt;li&gt;Flaws in a major automaker’s dealership portal exposed customer and vehicle data and enabled unauthorised remote access to vehicles.&lt;/li&gt;&#10;&lt;/ul&gt;&#10;&lt;h2 id="notable-threat-actor-activity"&gt;Notable Threat Actor Activity&lt;/h2&gt;&#10;&lt;ul&gt;&#10;&lt;li&gt;The Russian-linked &amp;lsquo;RomCom&amp;rsquo; hacking group exploited the WinRAR CVE-2025-8088 zero-day in targeted attacks on organisations in Europe and Canada.&lt;/li&gt;&#10;&lt;li&gt;North Korean Kimsuky hackers were themselves compromised, with internal data reportedly leaked by adversarial actors.&lt;/li&gt;&#10;&lt;li&gt;US authorities charged four Ghanaian nationals for their involvement in a $100 million fraud ring involving romance scams and business email compromise attacks.&lt;/li&gt;&#10;&lt;li&gt;The BlackSuit (Royal) ransomware gang suffered infrastructure seizures and asset forfeiture following coordinated law enforcement action.&lt;/li&gt;&#10;&lt;li&gt;An affiliate of the REvil ransomware group accused the Russian government of orchestrating the 2021 Kaseya supply chain attack.&lt;/li&gt;&#10;&lt;li&gt;Malicious actors have been actively exploiting a critical Erlang/OTP SSH vulnerability, with 70% of detected attacks targeting operational technology (OT) firewalls.&lt;/li&gt;&#10;&lt;/ul&gt;&#10;&lt;h2 id="trends-tools-or-tactics-of-interest"&gt;Trends, Tools, or Tactics of Interest&lt;/h2&gt;&#10;&lt;ul&gt;&#10;&lt;li&gt;Surge in exploitation of Erlang/OTP SSH vulnerabilities, with a focus on OT firewall targets.&lt;/li&gt;&#10;&lt;li&gt;Increase in “native phishing” campaigns, where attackers abuse Microsoft 365 apps such as OneNote and OneDrive to deliver internal phishing lures.&lt;/li&gt;&#10;&lt;li&gt;Jailbreaking techniques for GPT-5 were demonstrated using “echo chamber” prompts and storytelling, bypassing safeguards without using inappropriate language.&lt;/li&gt;&#10;&lt;li&gt;The DarkBit ransomware (linked to MuddyWater) encryption was cracked by researchers, enabling free victim data recovery.&lt;/li&gt;&#10;&lt;li&gt;Exposure of persistent threats via USB-based attacks (BadCam) targeting Linux webcams.&lt;/li&gt;&#10;&lt;li&gt;Ongoing risk from large numbers of unpatched Exchange servers, facilitating potential lateral movement and cloud compromise.&lt;/li&gt;&#10;&lt;/ul&gt;&#10;&lt;h2 id="regulatory-or-policy-developments"&gt;Regulatory or Policy Developments&lt;/h2&gt;&#10;&lt;ul&gt;&#10;&lt;li&gt;The Netherlands&amp;rsquo; NCSC issued a public warning regarding active exploitation of Citrix NetScaler CVE-2025-6543, urging immediate remediation for critical infrastructure.&lt;/li&gt;&#10;&lt;/ul&gt;</description></item></channel></rss>