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CL-STA-0046 is a suspected China-linked threat actor associated with the use of EarthWorm, an open-source SOCKS5 tunneling and port-forwarding utility commonly used to support covert communications and internal pivoting. Public reporting links the cluster to tooling overlap with other China-linked intrusion sets, including APT41 and Volt Typhoon, but the available information does not establish that these are the same actor. High-confidence reporting specifically ties CL-STA-0046 to use of EarthWorm in prior operations. Based on the observed tooling association, the actor demonstrates post-compromise tradecraft consistent with stealthy network tunneling, proxying, and support for lateral movement inside victim environments. Available information is insufficient to confidently characterize specific victim sectors, countries targeted, sub-groups, or a fuller intrusion lifecycle beyond this tooling association.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Attributed origin per open-source reporting.
1 distinct technique observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
1 malware family attributed to this actor across reporting.
1 CVE this actor has used in observed campaigns. 1 of them exploited in the wild.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Referenced as a China-linked activity cluster previously associated with use of the EarthWorm tunneling tool in past attacks.
Referenced as a threat actor previously associated with use of the EarthWorm network tunneling tool.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.