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Threat actor

Earth Yako

Last fetched

Earth Yako is a threat actor tracked in WhisperGraph's MITRE ATT&CK corpus, observed using 0 techniques and also known as 2 other names.

Also known as

Operation RestyLink, Enelink

Description

Earth Yako is a threat actor that has been actively targeting researchers in academic organizations and think tanks in Japan. They use spearphishing emails with malicious attachments to gain initial access to their targets' systems. Earth Yako's objectives and patterns suggest a possible connection to a Chinese APT group, but conclusive proof of their nationality is lacking. They have been observed using various malware delivery methods and techniques, such as the use of Winword.exe for DLL Hijacking.

Techniques by tactic

No ATT&CK techniques are recorded for Earth Yako in WhisperGraph.

Attributed infrastructure

None published. WhisperGraph carries no ATTRIBUTED_TO edge to Earth Yako today — this states the absence of a published link, not that Earth Yako has no infrastructure.

References

© The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

Related pages

Pivot from Earth Yako into its techniques, tactics and any attributed infrastructure.

Queries

Resolves the slug to this actor, merging every duplicate node sharing the same name.


MATCH (a:ACTOR)
WHERE a.name =~ $pattern OR any(x IN a.aliases WHERE x =~ $pattern)
RETURN a.id AS id, a.name AS name, a.aliases AS aliases, a.description AS description,
       a.references AS references, a.campaigns AS campaigns
LIMIT 25
Run yourself →

Techniques this actor uses, grouped by the tactic each one serves.


MATCH (a:ACTOR {name: $name})-[:USES_TECHNIQUE]->(t:ATTACK_PATTERN)
OPTIONAL MATCH (t)-[:USES_TACTIC]->(tac:ATTACK_PATTERN)
RETURN t.id AS techniqueId, t.name AS techniqueName, tac.id AS tacticId, tac.name AS tacticName
LIMIT 1000
Run yourself →

Infrastructure publicly attributed to this actor.


MATCH (n)-[:ATTRIBUTED_TO]->(a:ACTOR {name: $name})
RETURN labels(n)[0] AS kind, n.name AS name
LIMIT 25
Run yourself →

Or query Whisper from your own LLM workflow via the Whisper MCP server.