Cybersecurity Brief
Thursday 1 May 2025
In this brief SonicWall, Co-op, Ascension, Commvault, WordPress, WhatsApp, +10 more
- Vendors
- SonicWall, Co-op, Ascension, Commvault, WordPress, WhatsApp, Microsoft, NSO Group, Meta
- Threat actors
- LabHost, RansomHub, TheWizards, Nebulous Mantis, Billbug, Scattered Spider, Hive0117
Major Incidents and Breaches
SonicWall SMA100 Exploitation
- SonicWall has confirmed active exploitation of two now-patched vulnerabilities in its SMA100 Secure Mobile Access appliances. Attackers are targeting unpatched systems in the wild.
UK Retailer Co-op Cyberattack
- Co-op Food, a major UK supermarket chain, experienced limited operational disruption after a cyberattack, prompting the shutdown of some IT systems.
Ascension Healthcare Data Breach
- Ascension, a large US healthcare provider, is notifying patients of a data breach stemming from a December 2024 third-party hacking incident, with personal and health information stolen.
Commvault Azure Breach
- Data protection firm Commvault reported a breach of its Azure environment by a nation-state actor but stated customer backup data was not impacted.
Phishing Platform LabHost Takedown
- The FBI released a list of 42,000 phishing domains tied to the dismantled LabHost phishing-as-a-service (PhaaS) operation, one of the largest of its kind.
RansomHub Ransomware Group Offline
- The RansomHub ransomware-as-a-service operation’s infrastructure has gone dark since 1 April 2025, causing affiliates to migrate to other groups such as Qilin and DragonForce.
Newly Discovered Vulnerabilities and Exploitation
SonicWall SMA100 Flaws
- Multiple vulnerabilities in SonicWall’s SMA100 appliances are being actively exploited. Patches are available, but unpatched systems remain at risk.
WordPress Plugin Backdoor
- A malware campaign is distributing a malicious WordPress plugin disguised as a security tool, which injects a backdoor onto compromised sites.
AI Prompt Injection in Model Context Protocol (MCP)
- Researchers have demonstrated that MCP is susceptible to prompt injection attacks, which can be leveraged for both offensive and defensive purposes in AI systems.
Windows 11 Update Issues
- Microsoft confirmed that Windows 11 24H2 updates via WSUS are failing after recent security updates, though this appears to be an operational rather than security vulnerability.
Notable Threat Actor Activity
TheWizards APT (China-Aligned)
- TheWizards APT group is abusing IPv6 SLAAC features to launch adversary-in-the-middle (AitM) attacks, hijacking software updates to distribute Windows malware, particularly targeting Asian gambling sectors. Their Spellbinder tool facilitates lateral movement and AitM operations.
Nebulous Mantis (Russian-speaking)
- The Nebulous Mantis group has targeted NATO-linked entities with multi-stage malware attacks using the RomCom RAT since mid-2022.
Billbug (Lotus Panda) – China-Linked
- Billbug has expanded cyber-espionage operations in Southeast Asia, deploying custom malware against government and private sector targets.
DarkWatchman Malware Resurgence
- Hive0117, a financially motivated group, is conducting attacks against Russian industries using a retooled version of the DarkWatchman malware.
Scattered Spider Arrest
- A suspected member of the Scattered Spider group was extradited from Spain to the US to face cybercrime charges.
North Korean IT Worker Infiltration
- North Korea continues to covertly place IT workers in Western organisations, leveraging AI tools to enhance the effectiveness and stealth of their operations.
Trends, Tools, and Tactics
Infostealer Surge via Phishing
- IBM X-Force reports an 84% year-on-year increase in infostealer malware delivered through phishing emails, underlining the growing threat from credential theft.
Phishing Campaigns Leveraging Current Events
- Threat actors are exploiting crises such as the Iberian blackout by impersonating national airlines and offering compensation to lure victims.
DHS Impersonation for Phishing
- Cybercriminals are impersonating the US Department of Homeland Security in phishing campaigns, exploiting fear around deportation efforts.
Customer Account Takeovers
- Account takeover attacks remain a significant and costly issue, with attackers leveraging phishing and credential theft to compromise consumer and enterprise accounts.
AI Risks: Code Hallucinations & Deepfake Impersonation
- AI-generated code is increasingly prone to ‘package confusion’ attacks due to hallucinated dependencies, raising supply chain risks.
- AI-powered threats such as deepfakes and impersonation scams are becoming more prevalent, targeting identity systems.
Malicious Plugins and Supply Chain Risks
- The use of malicious plugins, especially in widely used platforms like WordPress, highlights ongoing supply chain threats to web infrastructure.
Regulatory and Policy Developments
CISA Restructuring Delays
- The release of the US Cybersecurity and Infrastructure Security Agency (CISA) restructuring plan is delayed due to internal hurdles and leadership changes.
WhatsApp vs NSO Group Legal Proceedings
- Meta’s lawsuit against NSO Group over Pegasus spyware use is progressing, with experts predicting significant financial damages but ongoing concern about spyware proliferation.
Critical Infrastructure Security Challenges
- DARPA and other US federal research agencies highlighted persistent challenges in securing critical infrastructure at RSAC 2025.
DHS and CISA Leadership Statements
- US Department of Homeland Security and CISA leadership are calling for a renewed focus on efficiency and mission alignment within the agency.
Other Noteworthy Developments
WhatsApp ‘Private Processing’
- WhatsApp introduced ‘Private Processing,’ a privacy-preserving technology enabling secure cloud-based AI features.
AI Content Detection
- AI content detectors are reportedly becoming more reliable, supporting efforts to distinguish synthetic from human-generated content.
Secure Browser Recommendations
- New expert reviews of secure browsers highlight evolving privacy and security features for end-user protection.