Unfading Sea HazeThreat actor
Unfading Sea Haze is a threat actor focused on espionage, targeting government and military organizations in the South China Sea region since 2018. They employ spear-phishing emails with malicious attachments to gain initial access, followed by the deployment of custom malware such as Gh0st RAT variants and SharpJSHandler.From MISP Galaxy
Last reported 8 months ago, by JPCERT/CC Eyes1 report
ATT&CK techniques
3 techniques · each with the sentence it comes from- T1014Rootkit
“For persistence, combinations of rootkits, backdoors, and loaders are used.”
- T1053.005Scheduled Task
“Persistence was achieved by registering the malware in the Startup folder and creating scheduled tasks.”
- T1553.002Code Signing
“…onitoring persistence mechanisms with Autoruns and EDR solutions, and restricting AutoIt execution through AppLocker or WDAC based on code-signing information.”
Reports per month
last 12 monthsOctober so far (hatched). Counted by report, not by story.
What the reports say
1 report, newest first · the exact sentence from each-
JSAC2026 -Day 1-“Tool overlap provided strong evidence linking this cluster to “Unfading Sea Haze.””
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