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CamoFei, also tracked as ChamelGang, is a China-linked threat actor active since at least 2019 whose operations encompass cyberespionage, denial-of-service attacks, and ransomware deployment. Its targets have included organizations in the United States, Brazil, India, Russia, Taiwan, and Japan. Identified victims include the Presidency of Brazil and the All-India Institute of Medical Sciences, demonstrating targeting of government and healthcare organizations. Chinese state sponsorship has not been established by the available evidence. The actor has deployed CatB ransomware and used a stolen code-signing certificate to sign malicious tooling. The same certificate has been associated with Cobalt Strike payloads and tools supporting bring-your-own-vulnerable-driver attacks, which abuse vulnerable kernel drivers to disable security software. CamoFei and ChamelGang activity has been linked to the later Warlock ransomware operation tracked as Longlegs and Storm-2603, with additional connections to CL-CRI-1040. Those related operations exploit on-premises Microsoft SharePoint Server vulnerabilities and employ DLL sideloading, vulnerable-driver abuse, legitimate remote-access tooling, and Active Directory infrastructure to distribute ransomware. These connections do not establish that every associated tracking name represents an identical actor. CamoFei's combination of espionage and ransomware activity does not support assigning a single dominant motivation.
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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.
3 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
3 malware families attributed to this actor across reporting.
2 CVEs this actor has used in observed campaigns. 2 of them exploited in the wild.
ToolShell combined CVE-2025-49704 and CVE-2025-49706. CISA confirmed that the chain enabled unauthorized access to on-premises SharePoint servers, exposure of internal configurations, and remote code execution.
ToolShell combined CVE-2025-49704 and CVE-2025-49706. CISA confirmed that the chain enabled unauthorized access to on-premises SharePoint servers, exposure of internal configurations, and remote code execution.
1 indicator attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An earlier activity cluster linked by Symantec to Longlegs. Mentioned as historical attribution context, without cluster-specific details about the current attacks or an explicit identification as a Longlegs alias.
An older activity cluster cited for similarities to Warlock, without specific operations, malware, or techniques attributed to it in this content.
Named as a cluster historically associated with Longlegs. The content does not establish that it is an alias or subgroup, or attribute specific activity in the reported intrusions to it.
Mentioned as an older China-nexus activity cluster connected to Longlegs. No distinct campaign, malware use, targeting, or operational techniques are attributed to CamoFei in this reference.
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.