New Threat Cluster OP-512 Targets Microsoft IIS Servers with Custom Web Shell Framework
New Threat Cluster OP-512 Targets Microsoft IIS Servers with Custom Web Shell Framework 2026-06-05 at 18:33 By Cybersecurity researchers have discovered a previously unreported threat cluster dubbed OP-512 (where “OP” stands for “opponent”) that has been observed targeting Microsoft Internet Information Services (IIS) servers to deploy a bespoke web shell framework. ReliaQuest has assessed with moderate […]
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