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New Threat Cluster OP-512 Targets Microsoft IIS Servers with Custom Web Shell Framework

Cybersecurity researchers identified a previously unreported threat cluster, OP-512, targeting Microsoft Internet Information Services (IIS) servers to deploy a custom web shell framework. ReliaQuest assessed with moderate to high confidence that the espionage-focused activity is linked to China.

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New Threat Cluster OP-512 Targets Microsoft IIS Servers with Custom Web Shell Framework

Cybersecurity researchers identified a previously unreported threat cluster, OP-512, targeting Microsoft Internet Information Services (IIS) servers to deploy a custom web shell framework. ReliaQuest assessed with moderate to high confidence that the espionage-focused activity is linked to China.