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China-Linked OP-512 Uses Cryptographically Unique Web Shells in Patient IIS Server Espionage Campaign
Cybercrime

China-Linked OP-512 Uses Cryptographically Unique Web Shells in Patient IIS Server Espionage Campaign

9 June 2026 dark6

ReliaQuest has uncovered OP-512, a new China-linked threat cluster targeting IIS servers with a custom web shell framework that generates...