Duo Tech
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Detects dropped builder/README/config files from underground Ransomware-as-a-Service kits bundling FUD AES-256 crypters, private stubs, decrypters, and key generators for Windows 10/11 ransomware payloads
Detects PowerShell or WMIC commands used by Starland RAT to gather system hardware identifiers, RAM capacity, and installed antivirus products via CIM/WMI queries during victim profiling.
Detects outbound network traffic to a specific .onion domain associated with underground ransomware or crypter sales. This suggests potential interaction with C2 or malicious infrastructure hosted via the Tor network.
Detects push operations to an Azure Container Registry. This activity is a common administrative task but can also indicate an adversary pushing a malicious, backdoored, or unauthorized container image into an environment, potentially for persistence or supply chain attack purposes.
Detects the execution of binaries (exe, dll, msi) or scripts via rundll32/msiexec from the user's Local AppData Temp directory. This behavior is commonly associated with staging and executing secondary payloads by malware such as the Starland RAT, which frequently drops and runs its payloads from these locations to evade detection.
Detects pythonw.exe or python.exe process execution running under the WDAGUtilityAccount user context, which Starland RAT checks against its hardcoded sandbox-account blacklist before continuing execution. Observing this account name paired with the Python runtime used by the RAT's loader chain is a strong indicator of the malware executing (or attempting to execute) inside a sandboxed analysis environment.
This rule detects potential ransomware activity by monitoring for high-frequency file rename events (more than 50 in a single dataset aggregation) or file renames resulting in the specific extension '.God8Damn'. Such patterns are highly characteristic of ransomware encrypting local or network files.
Detects process injection attempts leveraging Asynchronous Procedure Calls (APC) by monitoring process access events for a characteristic API call sequence involving VirtualAllocEx, WriteProcessMemory, QueueUserAPC, and CreateRemoteThread, commonly associated with the Starland RAT.
Detects the execution of PowerShell scripts associated with the WLDR Agent, specifically looking for indicators of RunspacePool initialization, module runspace starts, and message queue communication patterns.
Detects the execution of PowerShell scripts associated with the WLDR Agent, specifically looking for indicators of RunspacePool initialization, module runspace starts, and message queue communication patterns.
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