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SonicWall security advisory (AV26-884)
Canada's Cyber Centre issued advisory AV26-884 warning that SonicWall Network Security Manager On-Prem 4.3.0 and earlier are affected by multiple vulnerabilities.
The Canadian Centre for Cyber Security published advisory AV26-884 on September 4, 2026, flagging SonicWall Network Security Manager (NSM) On-Prem across VMware, Hyper-V, Azure, and KVM deployments, versions 4.3.0 and earlier, as affected by multiple vulnerabilities. The advisory does not list CVE identifiers, exploit details, or in-the-wild exploitation. Administrators are encouraged to review the referenced links and apply updates as they become available.
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Cortex XDR™ Detects New Phishing Campaign Installing NetSupport Manager RAT
Cortex XDR threat hunters uncovered a phishing campaign delivering the NetSupport Manager RAT via a fake password-protected NortonLifelock Word document.
Unit 42 identified a January 2020 phishing campaign using a Microsoft Word document disguised as a password-protected NortonLifelock file. Enabling macros triggered an obfuscated command that built alpaca.bat in the temp directory, which used msiexec to download an MSI payload from quickwaysignstx.com, filtered on the Windows Installer user-agent string. The payload installed a PowerShell script and the campaign, which has delivered NetSupport Manager RAT since at least 2018, showed related activity dating back to early November 2019.
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