RansomHouse on DanSec Daily

Cybersecurity Brief – 2026-05-10

Sun, 10 May 2026 00:00:00 +0000

Major Incidents or Breaches

The JDownloader website was compromised to distribute malicious installers for both Windows and Linux users. The Windows installer deployed a Python-based RAT (Remote Access Trojan).
NVIDIA confirmed a data breach affecting GeForce NOW users in Armenia, exposing user information.
Trellix experienced a source code repository breach, with the RansomHouse threat group claiming responsibility and leaking proof-of-intrusion images.
Zara suffered a data breach exposing personal information of over 197,000 customers.
Instructure, the company behind the Canvas educational platform, was hit by a second attack claimed by ShinyHunters, with PII of hundreds of millions at risk. The attack also resulted in defacement of school login portals and ransom demands.
The Canvas system, used by thousands of educational institutions, went offline due to a cyberattack, disrupting students during finals.
AI firm Braintrust reported a breach in which attackers accessed an AWS account and compromised AI provider secrets, prompting API key rotation.
Polish Security Agency reported ICS (Industrial Control Systems) breaches at five water treatment plants, where attackers gained the ability to modify operational parameters, posing a direct risk to public water supplies.

Newly Discovered Vulnerabilities

cPanel released updates for three newly discovered vulnerabilities in cPanel and Web Host Manager (WHM), which could allow privilege escalation, code execution, and denial-of-service attacks.
A new Linux local privilege escalation vulnerability, “Dirty Frag,” was disclosed, following closely after the “Copy Fail” vulnerability (CVE-2026-31431).
CISA issued an emergency directive for U.S. federal agencies to patch a high-severity Ivanti Endpoint Manager Mobile (EPMM) vulnerability exploited as a zero-day within four days.

Notable Threat Actor Activity

A previously undocumented Brazilian banking trojan, TCLBANKER, was identified targeting 59 banking, fintech, and cryptocurrency platforms via WhatsApp and Outlook-based worms.
Quasar Linux RAT (QLNX), a new Linux remote access trojan, is targeting developer systems to steal credentials and facilitate software supply chain compromise.
ShinyHunters escalated attacks against the Canvas platform, moving from data theft to ransom-driven defacement of school login portals.
RansomHouse claimed responsibility for the Trellix source code repository breach.
A malicious repository on Hugging Face impersonated an OpenAI project to deliver information-stealing malware to Windows users.

Trends, Tools, or Tactics of Interest

Reports indicate the time between initial phishing email delivery and full organizational compromise has reduced to seconds, highlighting increased attack speed and automation.
Fraudulent Android apps masquerading as call history tools were discovered on Google Play Store, tricking users into unauthorized payments and amassing 7.3 million downloads.
Research into SOC operations revealed a trend of missed low-severity threats, with data from 25 million alerts showing that at least one significant threat per week is overlooked due to alert fatigue and volume.
Attacker use of Windows Phone Link to steal one-time passwords (OTPs) was highlighted in recent malware campaigns.
A report noted that Microsoft Edge loads saved passwords into memory in plaintext at startup, which could be exploited by attackers with local access.
A hackable robot lawn mower was identified as a potential new vector for physical and digital attacks due to security weaknesses.

Regulatory or Policy Developments Affecting the Security Industry

CISA has mandated a four-day patch window for federal agencies to address critical vulnerabilities, reflecting an ongoing shift toward shorter patch cycles.
The US government is reportedly moving toward a 72-hour patch cycle for critical vulnerabilities affecting federal systems.

Cybersecurity Brief – 2026-05-09

Sat, 09 May 2026 00:00:00 +0000

Major Incidents or Breaches

NVIDIA confirmed a data breach affecting GeForce NOW users in Armenia, with user information exposed.
Trellix source code repository breach was claimed by the RansomHouse threat group, who leaked images as proof of intrusion.
Zara suffered a data breach exposing personal information of 197,000 customers, as reported by Have I Been Pwned.
Instructure, the edtech company behind the Canvas learning platform, experienced a second attack claimed by ShinyHunters; PII of hundreds of millions potentially at risk.
The Canvas system used by thousands of schools and universities was taken offline by a cyberattack, disrupting operations during final exams.
ShinyHunters escalated their attacks on Canvas by defacing school login portals with ransom messages.
AI firm Braintrust suffered a breach in which hackers accessed an AWS account and compromised AI provider secrets, prompting API key rotation.
The Polish Security Agency reported ICS breaches at five water treatment plants, where attackers gained the ability to modify operational parameters, posing a direct risk to public water supply.

Newly Discovered Vulnerabilities

cPanel released patches for three vulnerabilities in cPanel and Web Host Manager (WHM) that could allow privilege escalation, code execution, and denial-of-service.
A new local privilege escalation (LPE) vulnerability in the Linux kernel, dubbed “Dirty Frag,” was disclosed, following the recent “Copy Fail” (CVE-2026-31431) vulnerability.
Quasar Linux RAT (QLNX), a previously undocumented Linux remote access trojan, was identified targeting developer systems, enabling credential theft and post-compromise activity.
Microsoft Edge was found to load saved passwords into system memory in plaintext on startup, making them susceptible to theft if the device is already compromised; Microsoft states this is “by design.”
Ivanti Endpoint Manager Mobile (EPMM) was subject to a high-severity zero-day vulnerability exploited in the wild, prompting urgent patching directives.

Notable Threat Actor Activity

RansomHouse claimed responsibility for the Trellix source code breach and published proof of access.
ShinyHunters continued their campaign against Instructure/Canvas, including login portal defacement and ransom demands.
TCLBANKER, a newly identified Brazilian banking trojan, was observed targeting 59 banking, fintech, and cryptocurrency platforms via WhatsApp and Outlook-based worms.
Fraudulent Android apps on Google Play, purporting to provide call history access, were discovered stealing user payments after 7.3 million downloads.
Malware leveraging Windows Phone Link to steal one-time passwords (OTPs) was reported in active use.
PamDOORa, a new Linux backdoor, was identified in the wild.
A train hacker was arrested in connection with cyberattacks on critical infrastructure.

Trends, Tools, or Tactics of Interest

The time between phishing email delivery and full organizational compromise has reportedly shrunk to seconds, highlighting increasing attack speed.
Analysis of 25 million SOC alerts revealed that low-severity threats are frequently missed, with at least one missed threat per week in large enterprises.
Overwhelmed SOC teams are unable to keep pace with attacker speed; AI is being promoted as a tool to accelerate alert triage and investigation.
Cybersecurity is increasingly intersecting with geopolitical and cognitive warfare, particularly noted in the African context.
Attackers are increasingly targeting software supply chains by compromising developer credentials and systems.
Attackers are exploiting social engineering and fraudulent apps at scale via official app stores.

Regulatory or Policy Developments Affecting the Security Industry

CISA mandated U.S. federal agencies to patch the Ivanti EPMM zero-day vulnerability within four days.
The US government is targeting 72-hour patch cycles for critical vulnerabilities.
A new frontrunner for the CISA Director position was reported.

Cybersecurity Brief – 2026-05-08

Fri, 08 May 2026 00:00:00 +0000

Major Incidents or Breaches

The ShinyHunters extortion group breached Instructure’s Canvas platform, exploiting a new vulnerability to deface login portals across hundreds of colleges and universities, disrupting classes and coursework nationwide. The campaign involved mass ransomware extortion and data theft.
RansomHouse ransomware group claimed responsibility for a breach of cybersecurity vendor Trellix, publishing screenshots of access to internal services.
Daemon Tools confirmed a supply chain attack affecting its distribution infrastructure; the vendor reports the attack has been contained, compromised files removed, and installation packages validated.
A massive AI investment scam operation was uncovered, spanning 15,500 domains and using the Keitaro ad-tracking platform for targeted victim exposure.
Thousands of web applications built using AI-driven platforms were found to be leaking sensitive corporate and personal data due to misconfiguration and insecure defaults.

Newly Discovered Vulnerabilities

CVE-2025-68670: A pre-authentication remote code execution (RCE) vulnerability was discovered in the xrdp server component, affecting Kaspersky USB Redirector. The issue has been patched.
Dirty Frag: A new, unpatched local privilege escalation (LPE) vulnerability in the Linux kernel allows attackers to gain root access on all major Linux distributions. It is a successor to the recently disclosed Copy Fail vulnerability.
CVE-2026-6973: Ivanti Endpoint Manager Mobile (EPMM) is affected by a high-severity RCE vulnerability, which has been exploited in limited zero-day attacks. Ivanti has released a patch.
PAN-OS Firewall Zero-Day: Palo Alto Networks disclosed that a critical RCE vulnerability in PAN-OS firewalls has been exploited in the wild since at least April 9, 2026. The campaign exhibits hallmarks of Chinese state-sponsored activity.
Vulnerabilities in Claude AI and associated tools (Claude Chrome extension, Claude Code, Cursor CLI, Gemini CLI, CoPilot CLI) allow code execution and OAuth token theft via malicious repositories or hijacking, due to lax permissions and insufficient warning dialogs.
Chrome 148 was released, addressing 127 security vulnerabilities, including critical-severity integer overflow and use-after-free bugs.

Notable Threat Actor Activity

PCPJack: A new credential-stealing malware framework, PCPJack, is actively targeting exposed cloud infrastructure. It spreads worm-like by exploiting five CVEs, steals credentials, and removes competing TeamPCP malware from infected environments. PCPJack uses parquet files for stealthy, pre-validated target discovery.
ShinyHunters: Conducted a mass extortion and ransomware campaign against the Canvas education platform, impacting thousands of educational institutions.
TCLBanker: A new banking trojan is self-spreading via WhatsApp and Outlook, targeting 59 banking, fintech, and cryptocurrency platforms. Initial infection is delivered through a trojanized MSI installer.
Ongoing campaigns using ClickFix social engineering are distributing Vidar Stealer malware, as warned by the Australian Cyber Security Center.
Fake Claude AI website is distributing a new Windows backdoor, “Beagle,” through malicious downloads.

Trends, Tools, or Tactics of Interest

Credential theft and session hijacking remain prevalent, with attackers using phishing, malicious packages (e.g., PyPI packages delivering ZiChatBot), and browser-based techniques to bypass traditional security controls.
APT groups are increasingly leveraging C2 frameworks for attacks, as detailed in a Q1 2026 vulnerabilities and exploits report.
Attackers are exploiting browser activity (copy/paste, AI prompts) to bypass data loss prevention (DLP) controls, highlighting gaps in current endpoint protection strategies.
AI-integrated attacks are becoming more sophisticated, targeting both vision-language models and SaaS platforms, though some recent attempts failed to breach OT/ICS environments.
Cloud infrastructure is a primary target for worm-like malware and credential stealers, with new frameworks focusing on lateral movement and removal of competing threats.
There is a continued trend of attackers abusing software supply chains and public repositories (e.g., PyPI) to distribute malware.

Regulatory or Policy Developments Affecting the Security Industry

A UK report on the Online Safety Act indicates some progress in online age checks, but highlights ongoing issues with workarounds, persistent harm, and unresolved privacy concerns.

Cybersecurity Brief – 2025-12-22

Mon, 22 Dec 2025 00:00:00 +0000

Major Incidents or Breaches

Hackers stole millions of PornHub users’ data for extortion purposes.
The U.S. Department of Justice indicted 54 individuals for a multi-million dollar ATM jackpotting scheme involving the use of Ploutus malware.

Newly Discovered Vulnerabilities

Cisco disclosed a zero-day vulnerability for which no patch is currently available.

Notable Threat Actor Activity

The Iranian Infy (aka Prince of Persia) APT group has resurfaced after nearly five years of inactivity, exhibiting new malware activity.

Trends, Tools, or Tactics of Interest

Android malware operations are increasingly merging the use of malicious dropper apps with SMS theft and remote access trojan (RAT) capabilities at scale, as seen in campaigns distributing the Wonderland SMS stealer.
RansomHouse ransomware-as-a-service has upgraded its encryptor, moving from a single-phase linear technique to a multi-layered data processing method, enhancing the complexity of its encryption process.

Cybersecurity Brief – 2025-12-21

Sun, 21 Dec 2025 00:00:00 +0000

Major Incidents or Breaches

PornHub has suffered a data breach in which hackers stole data belonging to millions of users. The attackers are reportedly using the stolen information for extortion purposes.

Notable Threat Actor Activity

The Iranian APT group Infy (also known as Prince of Persia) has resurfaced after nearly five years of inactivity. New malware activity attributed to Infy has been observed targeting victims in Sweden.
RansomHouse ransomware-as-a-service operators have upgraded their encryption techniques, moving from a single-phase linear approach to a more complex, multi-layered data processing method.
The U.S. Department of Justice has indicted 54 individuals involved in a large-scale ATM jackpotting scheme. The conspiracy utilised Ploutus malware to compromise ATMs and steal millions of dollars.

Newly Discovered Vulnerabilities

Cisco has disclosed a zero-day vulnerability for which there is currently no available patch.

Trends, Tools, or Tactics of Interest

RansomHouse’s enhancement of its encryptor to a multi-layered data processing model indicates a trend toward increased sophistication in ransomware encryption techniques.

Regulatory or Policy Developments Affecting the Security Industry

The U.S. Department of Justice’s action against the ATM jackpotting scheme demonstrates ongoing law enforcement efforts targeting cybercrime operations involving malware and large-scale financial theft.

Cybersecurity Brief – 2025-12-17

Wed, 17 Dec 2025 00:00:00 +0000

Major Incidents or Breaches

Petróleos de Venezuela (PDVSA), Venezuela’s state-owned oil company, suffered a cyberattack that disrupted export operations over the weekend.
SoundCloud disclosed a data breach affecting approximately 20% of its users, with attackers accessing user data.
Askul, an e-commerce and logistics company, was targeted by the RansomHouse ransomware group in October, resulting in the compromise of 700,000 records.
A new report highlights that most “parked” domains-largely expired or unused domains-now serve malicious content, increasing risks from direct navigation.
Urban VPN Proxy, a popular Chrome extension with 8 million users, was found to be harvesting data from AI chatbot conversations, including ChatGPT, Claude, Gemini, and Copilot.
A security flaw at a photo booth operator’s website exposed hundreds of private customer photos online.

Newly Discovered Vulnerabilities

Two critical authentication bypass vulnerabilities in Fortinet FortiGate devices are under active exploitation, enabling unauthorised access to admin accounts and theft of configuration files.
The React2Shell vulnerability is being actively exploited to deploy Linux backdoors such as KSwapDoor and ZnDoor.
A vulnerability in JumpCloud Remote Assist allows attackers to write arbitrary data or delete files to gain System privileges.
Kaspersky researchers detailed a vulnerability in a vehicle’s head unit modem, which allowed full system access.
A malicious NuGet package, typosquatting the legitimate Tracer.Fody .NET library, was discovered stealing cryptocurrency wallet data.

Notable Threat Actor Activity

Amazon’s threat intelligence team reported a years-long Russian GRU campaign targeting Western critical infrastructure, particularly in the energy and cloud sectors, from 2021 to 2025. The campaign has shifted from exploiting vulnerabilities to leveraging misconfigured edge devices.
The Ink Dragon espionage group (also known as CL-STA-0049, Earth Alux) was profiled for its sustained and sophisticated offensive operations, including the use of relay networks.
An ongoing campaign is targeting AWS customers with compromised IAM credentials to conduct large-scale cryptocurrency mining.
The ‘GhostPoster’ campaign is distributing malicious Firefox extensions that hide JavaScript in addon logos to monitor activity and deploy backdoors, with over 50,000 downloads.
Cellik, a new Android malware-as-a-service (MaaS), is being marketed on underground forums with capabilities to embed in any app and build malicious versions from Google Play apps.
A phishing campaign targeting executives is using phony award offers to harvest credentials.
European law enforcement dismantled a Ukrainian call center fraud ring responsible for over €10 million in losses across Europe.

Trends, Tools, or Tactics of Interest

Ransomware groups are increasingly targeting hypervisors to encrypt multiple virtual machines simultaneously.
There is a surge in Android mobile adware and malware, particularly Triada and MobiDash, in late 2025.
Threat actors are increasingly exploiting third-party risks introduced by rapid adoption of open source and AI-powered coding assistants.
The majority of parked domains now serve malicious content, making direct navigation to such domains riskier.
Fortinet FortiGate vulnerabilities are being exploited within a week of public disclosure, indicating rapid weaponisation of new flaws.
AI-assisted coding platforms are accelerating software development, increasing the attack surface and third-party risks.
KnowBe4 released deepfake training modules to help organisations combat AI-driven threats.
Microsoft announced it will block Exchange Online access for mobile devices running outdated email software.
Amazon observed Russian state actors shifting tactics from exploiting vulnerabilities to abusing misconfigured infrastructure in critical sectors.

Regulatory or Policy Developments Affecting the Security Industry

The Texas Attorney General filed lawsuits against five major TV manufacturers, alleging illegal collection and sale of user viewing data without consent via Automated Content Recognition.
Afripol is intensifying regional cooperation to address cybercrime challenges amid rapid digitisation and increased cybercriminal activity in Africa.
Google announced it will discontinue its dark web monitoring report in early 2026.

Cybersecurity Brief – 2025-12-16

Tue, 16 Dec 2025 00:00:00 +0000

Major Incidents or Breaches

SoundCloud confirmed a security breach resulting in the theft of a user database containing member data and subsequent disruption of VPN access for users.
Askul Corporation, a Japanese e-commerce company, disclosed that RansomHouse hackers stole approximately 740,000 customer records in an October ransomware attack.
PornHub is being extorted by the ShinyHunters gang following the theft of Premium member search and watch history data, reportedly accessed via a Mixpanel data breach.
700Credit, a U.S.-based financial services provider, reported a data breach impacting 5.8 million individuals, with stolen data including names, addresses, dates of birth, and Social Security numbers.

Newly Discovered Vulnerabilities

FreePBX patched multiple critical vulnerabilities, including an authentication bypass, SQL injection, and file upload flaws, all of which could enable remote code execution.
Atlassian released updates for Bamboo, Bitbucket, Confluence, Crowd, Fisheye/Crucible, and Jira to address a critical Apache Tika vulnerability.
Apple patched two actively exploited WebKit zero-days in macOS and iOS, which are linked to a previously patched Chrome flaw. The vulnerabilities were used in sophisticated attacks.
React2Shell (CVE-2025-55182) remote code execution vulnerability continues to be actively exploited, with new exploits surfacing.
Microsoft confirmed that December 2025 security updates are causing failures in Message Queuing (MSMQ) and breaking VPN networking for Windows Subsystem for Linux (WSL) users.

Notable Threat Actor Activity

Five additional Chinese threat groups have been linked by Google to ongoing exploitation of the React2Shell vulnerability for malware delivery. Iranian threat actors have also been observed leveraging the same flaw.
The ShadyPanda threat group was identified as responsible for a large-scale campaign hijacking popular Chrome and Edge browser extensions.
Phantom Stealer is being distributed via phishing emails with malicious ISO attachments, targeting various sectors in Russia.
The pro-Russia CyberVolk ransomware group’s VolkLocker variant was found to contain a flaw that allows victims to decrypt their files without paying ransom.
SantaStealer, a new information stealer malware offered as malware-as-a-service, is being promoted on Telegram and hacker forums, featuring in-memory operation to evade file-based detection.

Trends, Tools, or Tactics of Interest

Phishing attacks are increasingly abusing free Cloudflare Pages to host phishing portals, aiding in evasion of security scanners.
Phishing trends in 2025 show a shift beyond email, with increased use of social platforms, search ads, and browser-based techniques to bypass multi-factor authentication and steal session tokens.
Deepfake attacks are becoming more realistic and compelling, raising concerns about their use in social engineering and disinformation.
Militant and extremist groups are experimenting with AI technologies, including propaganda and deepfakes, to expand their influence.
A Chrome browser extension with a “Featured” badge and six million users was discovered intercepting and collecting user prompts from AI chatbots.
PayPal closed a loophole that allowed scammers to send legitimate-looking emails from service@paypal.com, which were used to push tech support scams.
Pig butchering scams are being highlighted as a growing global crisis, involving large-scale, long-term social engineering fraud.

Regulatory or Policy Developments Affecting the Security Industry

Google announced the discontinuation of its dark web monitoring/report tool in early 2026, impacting users’ ability to monitor exposure of personal information on the dark web.
The French Ministry of the Interior confirmed a cyberattack that compromised its email servers.
Cyber insurance managing general agents (MGAs) are increasingly shaping policies to better reflect real-world cyber risk, with a focus on sector-specific expertise.
A third individual pleaded guilty in the U.S. for involvement in a credential stuffing attack against DraftKings, underlining ongoing law enforcement activity against cybercrime.