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Flax Typhoon is a China-linked state-sponsored espionage threat actor, also tracked as Ethereal Panda and Storm-0919. The group has been associated with operations supporting the strategic interests of the People’s Republic of China and has been reported targeting government agencies, critical infrastructure, and technology networks, with particular emphasis on Taiwan and the United States. Flax Typhoon has also been linked to long-duration compromises of internet-facing enterprise applications, including ArcGIS Server environments, where it reportedly used malicious server extensions to maintain persistent remote code execution and year-long access. A defining characteristic of Flax Typhoon activity is its use of compromised internet-connected devices as operational relay infrastructure. The group has been tied to botnets composed of routers and other IoT devices, including infrastructure publicly associated with Integrity Technology Group. These compromised-device networks have been used as proxy layers to obscure operator origin, support command and control, and facilitate follow-on intrusion activity. Reporting has also linked Flax Typhoon to broader operational relay box and proxy-network tradecraft seen across multiple PRC-linked intrusion sets. Observed tradecraft includes initial access through exposed or weakly protected internet-facing systems, persistence through web shells and malicious server-side components, command execution, use of encoded commands, and defense evasion through layered proxy infrastructure. Flax Typhoon has been associated with post-compromise activity on IIS and ArcGIS-related systems, and overlapping tradecraft has been noted in other China-linked web-shell-centric intrusions. The actor’s operations align with cyber espionage and strategic pre-positioning rather than financially motivated crime.
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.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
35 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
12 malware families attributed to this actor across reporting.
7 additional families tracked in Mallory.
4 CVEs this actor has used in observed campaigns. 4 of them exploited in the wild.
There was also widespread, global targeting, such as a government agency in Kazakhstan, along with more targeted scanning and likely exploitation attempts against vulnerable software including Atlassian Confluence servers and Ivanti Connect Secure appliances (likely via CVE-2024-21887) in the same sectors.
VulnCheck observed an attacker in the wild using mount as a “download and execute” GTFOBin while attempting to exploit Hikvision CVE-2021-36260... CVE-2021-36260 is a command injection vulnerability affecting the /SDK/webLanguage endpoint.
CISA first warned of the issues in September, when it ordered all agencies to patch CVE-2025-20333 and CVE-2025-20362 — two vulnerabilities impacting Cisco Adaptive Security Appliances (ASA).
CISA first warned of the issues in September, when it ordered all agencies to patch CVE-2025-20333 and CVE-2025-20362 — two vulnerabilities impacting Cisco Adaptive Security Appliances (ASA).
11 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Operated a botnet of compromised routers and other internet-connected devices, using Integrity Tech infrastructure as the control layer.
Operated a botnet of compromised routers and other internet-connected devices, with Integrity Tech infrastructure identified as the control layer.
Referenced as the threat actor linked to operations facilitated by Beijing Integrity Technology Co.; described as targeting government agencies, critical infrastructure, and technology networks globally.
Referenced as the threat actor linked to state-sponsored cyber operations facilitated by Beijing Integrity Technology Co., targeting government agencies, critical infrastructure, and technology networks globally.
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.