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Unfading Sea Haze: New Espionage Campaign in the South China Sea

ID: 1c8e674c-b75b-5de5-8263-da92e72123da

STIX ID: report--1c8e674c-b75b-5de5-8263-da92e72123da

Feed Name: Bitdefender Labs

Threat Score
85/100

Date Published: 2024-05-22

Date Updated: 2026-04-27

Author: Bitdefender

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Bitdefender analyzed an espionage campaign named Unfading Sea Haze targeting at least eight military and government organizations in the South China Sea region; the actor (attributed to Chinese-aligned interests) uses spear-phishing with zipped LNKs to deploy SerialPktdoor and multiple .NET backdoors and Gh0stRat variants, abuses legitimate RMM as fallback access, and exfiltrates documents, browser data, and messaging app files.

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