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high advisory

Microsoft Security Updates — July 2026

Roundup of Microsoft security advisories published in July 2026.

PoC PowerShell +511 roundup
11c 354i updated
high threat

Trigona Ransomware Employing Custom Data Exfiltration Tool

Trigona ransomware is using a custom data exfiltration tool named 'uploader_client.exe' to steal data from compromised environments, enhancing speed and evasion.

Windows +3 Trigona ransomware data exfiltration custom tool
2r 4t 1i