S9034 Tsundere Botnet

malwareEnterprise

platformsLinux · macOS · Windows

also known asTsundere Botnet · DinDoor

Tsundere Botnet is a botnet first reported in mid-2025 that is delivered via MSI installer or a PowerShell script. It leverages Node.js and JavaScript for payload delivery and execution, and uses smart contracts on the blockchain to host command and control (C2) addresses. Tsundere Botnet is attributed to a likely Russian-speaking threat actor. A variant named DinDoor has been linked to MuddyWater operations and uses the Deno runtime for execution rather than Node.js.

techniques used (17)

ATT&CK techniques this enables or maps to.

T1027.010Command Obfuscation
T1027.013Encrypted/Encoded File
T1036.005Match Legitimate Resource Name or Location
T1059.001PowerShell
T1059.007JavaScript
T1071.001Web Protocols
T1082System Information Discovery
T1102.001Dead Drop Resolver
T1105Ingress Tool Transfer
T1140Deobfuscate/Decode Files or Information
T1195.001Compromise Software Dependencies and Development Tools
T1218.007Msiexec
T1480Execution Guardrails
T1547.001Registry Run Keys / Startup Folder
T1564.003Hidden Window
T1567.002Exfiltration to Cloud Storage
T1614System Location Discovery

used by groups (1)

Threat groups associated with this.

G0069MuddyWater

source

Where this definition is published.

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