Cybersecurity Brief – 2025-09-25

Thu, 25 Sep 2025 00:00:00 +0000

Major Incidents or Breaches

Boyd Gaming reported a data breach affecting employees and other individuals, as disclosed to the SEC.
A US Federal Civilian Executive Branch (FCEB) agency was breached via exploitation of a critical GeoServer vulnerability (CVE-2024-36401); attackers deployed China Chopper and remote access scripts and remained undetected for three weeks.
European airports experienced widespread disruptions due to a ransomware attack linked to the RTX group; the UK National Crime Agency arrested a suspect in connection with the incident. The attack on Collins Aerospace is believed to have involved HardBit ransomware.
Interpol-led law enforcement seized over $439 million in cash and cryptocurrency from cybercrime rings worldwide during a five-month joint operation.
A record-breaking DDoS attack peaked at 22 Tbps and 10 billion packets per second (Bpps), targeting a European network infrastructure company and linked to the Aisuru botnet.
The Python Package Index (PyPI) urged users to reset credentials following a new wave of phishing attacks using a fake PyPI website.
GitHub users were targeted in a large-scale phishing campaign impersonating Y Combinator via GitHub notifications, delivering cryptocurrency drainers.
KNP Logistics Group, a 158-year-old business, collapsed following a cyber incident attributed to poor password security.

Newly Discovered Vulnerabilities

Cisco disclosed a high-severity, actively exploited SNMP vulnerability in IOS and IOS XE Software allowing remote code execution or denial-of-service; patches have been released.
Two critical vulnerabilities were identified in Wondershare RepairIt, exposing private user data and enabling potential tampering with AI models.
Supermicro hardware was found to have two firmware vulnerabilities in its Baseboard Management Controller (BMC), which could allow attackers to create persistent backdoors by updating systems with malicious images.
A flaw in multiple OnePlus OxygenOS versions allows installed apps to access SMS data and metadata without permissions or user interaction; the issue remains unpatched.
Ongoing exploit attempts have been observed against an older Hikvision camera vulnerability.
SonicWall SMA devices were targeted with the ‘OVERSTEP’ backdoor; SonicWall released updates for SMA 100 appliances to remove the malware and improve file checks.

Notable Threat Actor Activity

Suspected Chinese threat actors (RedNovember) have been targeting global government and private sector organizations using Pantegana and Cobalt Strike.
UNC5221, believed to be China-nexus, used the BRICKSTORM backdoor to infiltrate US legal, SaaS, BPO, and technology sectors; Google reports the malware has been used for over a year for data theft and persistent espionage.
UNC6148 deployed the OVERSTEP backdoor in ongoing attacks against SonicWall SMA devices, enabling system control, credential theft, and evasion.
A new malware family, YiBackdoor, was discovered with significant code overlap with IcedID and Latrodectus, suggesting shared development or tool reuse.
A new ransomware variant, Obscura, was observed spreading from a victim’s domain controller.
Scattered Spider: A core member surrendered to authorities amid claims of the group’s shutdown; US prosecutors charged a UK national, linking the group to $115 million in ransomware payments.
Russian threat actors conducted a disinformation campaign targeting the upcoming Moldovan elections, linked to previous 2022 operations.
An npm package was found to use steganography (QR codes) to hide a credential-stealing malware, posing a supply chain risk.

Trends, Tools, or Tactics of Interest

Attackers are exploiting payment iframe security weaknesses to deploy malicious overlays on checkout pages, facilitating credit card data theft.
Burp Suite introduced Burp AI, providing on-demand AI assistance for penetration testing workflows.
AI pentesting is emerging, with new agentic capabilities being integrated into security tools.
Kali Linux 2025.3 was released, featuring ten new tools, Nexmon support, and NetHunter improvements.
OpenAI is internally testing a new GPT-5-based AI agent, “GPT-Alpha”.
Police forces are increasingly using drones equipped with license plate recognition technology.
GitHub is implementing enhanced security measures for npm supply chain protection, including mandatory 2FA, short-lived granular tokens, and trusted publishing workflows.

Regulatory or Policy Developments Affecting the Security Industry

GitHub announced new security requirements for npm package publishing, including mandatory two-factor authentication, expiring granular tokens, and trusted publishing, in response to recent supply chain attacks.

Cybersecurity Brief – 2025-07-17

Thu, 17 Jul 2025 00:00:00 +0000

Major Incidents or Breaches

UK retailer Co-op confirmed the theft of personal data belonging to 6.5 million members following a major cyberattack in April, which also disrupted operations and caused food shortages.
Louis Vuitton disclosed that customer data breaches in the UK, South Korea, and Turkey are linked to a single security incident, reportedly associated with the ShinyHunters group.
United Natural Foods, Inc. (UNFI) projected up to $400 million in sales impact and $50–$60 million in net income loss due to a June cyberattack that disrupted operations, with insurance expected to cover most losses.
Compumedics, a medical technology company, suffered a ransomware attack by the VanHelsing group, resulting in the theft of files affecting 318,000 individuals.
An adoption agency left 1.1 million sensitive records of children and parents exposed on the open web due to a data misconfiguration.
A former US Army colonel leaked national secrets via a foreign dating app after being targeted by a scammer.
Amazon warned 200 million Prime customers about an ongoing phishing campaign targeting their login credentials.

Newly Discovered Vulnerabilities

Cisco disclosed a critical vulnerability in Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) that allows unauthenticated attackers to execute code as root.
Google released a critical Chrome update addressing six vulnerabilities, including CVE-2025-6558, a high-severity sandbox escape zero-day exploited in the wild.
Researchers identified a critical design flaw in delegated Managed Service Accounts (dMSAs) in Windows Server 2025, enabling cross-domain attacks and persistent access.
Oracle patched a critical bug in its Cloud Code Editor that could allow attackers to compromise the full suite of developer tools in Oracle Cloud Infrastructure.
Public exploits for a recently patched remote code execution vulnerability in Fortinet FortiWeb are suspected to be linked to ongoing attacks involving web shells on exposed instances.
Google’s AI-driven “Big Sleep” framework discovered and blocked exploitation of a critical SQLite vulnerability before it was weaponised.

Notable Threat Actor Activity

Threat cluster UNC6148 is exploiting a likely zero-day vulnerability to deploy the OVERSTEP backdoor and rootkit on fully patched, end-of-life SonicWall SMA 100 series appliances. The campaign is financially motivated and has suspected ties to the Abyss ransomware group.
The pro-Russian hacktivist group NoName057(16), responsible for DDoS attacks on European and NATO-related targets, had its infrastructure disrupted in an international law enforcement operation coordinated by Europol (Operation Eastwood).
The VanHelsing ransomware group was identified as responsible for the Compumedics breach.
Chinese APT group Salt Typhoon (aka APT41) compromised a US National Guard unit’s network, accessing internal and inter-unit communications.
A former US Army soldier pleaded guilty to hacking and extorting at least ten US tech and telecom companies, including AT&T and Verizon.
Matanbuchus 3.0, a new variant of the malware loader, is being distributed via Microsoft Teams and features enhanced evasion techniques, including EDR detection and DNS-based C2 communication.

Trends, Tools, or Tactics of Interest

Manufacturing remains a prime target for cyberattacks in Europe due to increased digital connectivity and automation.
Attackers are engineering phishing campaigns to bypass secure email gateways, using advanced tactics to evade perimeter detection.
AI-driven social engineering attacks are increasing in sophistication, leveraging deepfakes, fake recruiters, and cloned executive personas for targeted campaigns.
The new Konfety Android malware variant uses APK manipulation and dynamic code loading, combined with the evil twin Wi-Fi technique, to evade detection and commit ad fraud.
Free file sharing services continue to be abused for data exfiltration, as evidenced by recent malicious samples using platforms like catbox.moe.
Organizations are rapidly integrating AI into security workflows, but concerns remain over AI agents’ elevated privileges and the need for identity-first security controls.
Matanbuchus 3.0’s use of advanced stealth features and delivery via collaboration platforms highlights an ongoing trend of leveraging trusted business tools for initial access.
There is a growing emphasis on aligning cybersecurity budgets with measurable risk reduction and financial impact.

Regulatory or Policy Developments Affecting the Security Industry

Europol’s Operation Eastwood demonstrates continued international cooperation in disrupting cybercriminal infrastructure, particularly pro-Russian hacktivist operations targeting critical infrastructure and NATO-aligned entities.
Cambodia conducted a major anti-cybercrime operation, arresting more than 1,000 suspects in coordinated raids across multiple provinces.
The US Department of Homeland Security faces renewed scrutiny over the collection and retention of DNA from approximately 133,000 migrant children, raising privacy and civil liberties concerns.

UNC6148 on DanSec Daily

Cybersecurity Brief – 2025-09-25

Major Incidents or Breaches

Newly Discovered Vulnerabilities

Notable Threat Actor Activity

Trends, Tools, or Tactics of Interest

Regulatory or Policy Developments Affecting the Security Industry

Cybersecurity Brief – 2025-07-17

Major Incidents or Breaches

Newly Discovered Vulnerabilities

Notable Threat Actor Activity

Trends, Tools, or Tactics of Interest

Regulatory or Policy Developments Affecting the Security Industry