Tag: oast

1 Attack Reports | 0 Vulnerabilities

Attack reports

The Mystery OAST Host Behind a Regionally Focused Exploit Operation

A long-running, attacker-operated OAST service on Google Cloud has been observed driving a focused exploit operation. The actor combines stock Nuclei templates with custom payloads to expand their reach. All observed activity targeted canaries deployed in Brazil, indicating a deliberate regional fo…
exploit
brazil
google cloud
CVE-2025-4428
CVE-2025-2611
2025-11-28
oast
fastjson
regional targeting
nuclei
scanning infrastructure
Published: November 28, 2025
Linked vulnerabilities : CVE-2025-4428, CVE-2025-2611 (CVSS 9.3)
Downloadable IOCs: 9
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