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En este documento se describe un tipo de hallazgo de amenazas en Security Command Center. Los hallazgos de amenazas los generan los detectores de amenazas cuando detectan una amenaza potencial en tus recursos de la nube. Para ver una lista completa de las detecciones de amenazas disponibles, consulta el índice de detecciones de amenazas.
Información general
Se ha iniciado un proceso con redirección de flujo a un socket conectado remoto. Generar una shell conectada a la red puede permitir que un atacante realice acciones arbitrarias después de una vulneración inicial limitada.
Nombre completo del proyecto: el proyecto afectado Google Cloud
Enlaces relacionados, especialmente los siguientes campos:
Indicador de VirusTotal: enlace a la página de análisis de VirusTotal.
En la pestaña JSON, anota los siguientes campos:
resource:
project_display_name: el nombre del proyecto que contiene el recurso.
sourceProperties:
Reverse_Shell_Stdin_Redirection_Dst_Ip: la dirección IP remota de la conexión
Reverse_Shell_Stdin_Redirection_Dst_Port: el puerto remoto
Reverse_Shell_Stdin_Redirection_Src_Ip: la dirección IP local de la conexión
Reverse_Shell_Stdin_Redirection_Src_Port: el puerto local
Container_Image_Uri: el nombre de la imagen del contenedor que se está ejecutando.
Busca hallazgos relacionados que se hayan producido a una hora similar en el contenedor afectado. Estos resultados pueden indicar que la actividad era maliciosa,
en lugar de que no se hayan seguido las prácticas recomendadas.
Comprueba el valor del hash SHA-256 del archivo binario marcado como malicioso en VirusTotal haciendo clic en el enlace del indicador de VirusTotal. VirusTotal es un servicio propiedad de Alphabet que proporciona contexto sobre archivos, URLs, dominios y direcciones IP potencialmente maliciosos.
Para desarrollar un plan de respuesta, combina los resultados de tu investigación con la investigación de MITRE y el análisis de VirusTotal.
[[["Es fácil de entender","easyToUnderstand","thumb-up"],["Me ofreció una solución al problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Es difícil de entender","hardToUnderstand","thumb-down"],["La información o el código de muestra no son correctos","incorrectInformationOrSampleCode","thumb-down"],["Me faltan las muestras o la información que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-09-10 (UTC)."],[],[],null,["| Premium and Enterprise [service tiers](/security-command-center/docs/service-tiers)\n\nThis document describes a threat finding type in Security Command Center. Threat findings are generated by\n[threat detectors](/security-command-center/docs/concepts-security-sources#threats) when they detect\na potential threat in your cloud resources. For a full list of available threat findings, see [Threat findings index](/security-command-center/docs/threat-findings-index).\n\nOverview\n\nA process started with stream redirection to a remote connected socket. Spawning\na network-connected shell can allow an attacker to perform arbitrary actions\nafter a limited initial compromise.\n\n[Cloud Run Threat Detection](/security-command-center/docs/cloud-run-threat-detection-overview) is the source\nof this finding.\n\nHow to respond\n\nTo respond to this finding, do the following:\n\nReview finding details\n\n1. Open the `Reverse Shell` finding as directed in [Reviewing\n findings](/security-command-center/docs/how-to-investigate-threats#reviewing_findings).\n Review the details on the **Summary** and **JSON** tabs.\n\n2. On the **Summary** tab, review the information in the following sections:\n\n - **What was detected** , especially the following fields:\n - **Program binary**: the absolute path of the process started with stream redirection to a remote socket\n - **Arguments**: the arguments provided when the process binary was invoked\n - **Affected resource** , especially the following fields:\n - **Resource full name** : the [full resource name](/apis/design/resource_names) of the affected Cloud Run resource\n - **Project full name**: the affected Google Cloud project\n - **Related links** , especially the following fields:\n - **VirusTotal indicator**: link to the VirusTotal analysis page\n3. On the **JSON** tab, note the following fields:\n\n - `resource`:\n - `project_display_name`: the name of the project that contains the asset.\n - `sourceProperties`:\n - `Reverse_Shell_Stdin_Redirection_Dst_Ip`: the remote IP address of the connection\n - `Reverse_Shell_Stdin_Redirection_Dst_Port`: the remote port\n - `Reverse_Shell_Stdin_Redirection_Src_Ip`: the local IP address of the connection\n - `Reverse_Shell_Stdin_Redirection_Src_Port`: the local port\n - `Container_Image_Uri`: the name of the container image being executed.\n4. Look for related findings that occurred at a similar time for the affected\n container. Such findings might indicate that this activity was malicious,\n instead of a failure to follow best practices.\n\n5. Review the settings of the affected container.\n\n6. Check the logs for the affected container.\n\nResearch attack and response methods\n\n1. Review the MITRE ATT\\&CK framework entries for this finding type: [Command and\n Scripting Interpreter](https://attack.mitre.org/techniques/T1059/) and [Ingress Tool Transfer](https://attack.mitre.org/techniques/T1105/).\n2. Check the SHA-256 hash value for the binary flagged as malicious on [VirusTotal](https://www.virustotal.com) by clicking the link in **VirusTotal indicator**. VirusTotal is an Alphabet-owned service that provides context on potentially malicious files, URLs, domains, and IP addresses.\n3. To develop a response plan, combine your investigation results with the MITRE research and VirusTotal analysis.\n\nImplement your response\n\nFor response recommendations, see [Respond to Cloud Run threat\nfindings](/security-command-center/docs/respond-cloud-run-threats).\n\nWhat's next\n\n- Learn [how to work with threat\n findings in Security Command Center](/security-command-center/docs/how-to-investigate-threats).\n- Refer to the [Threat findings index](/security-command-center/docs/threat-findings-index).\n- Learn how to [review a\n finding](/security-command-center/docs/how-to-investigate-threats#reviewing_findings) through the Google Cloud console.\n- Learn about the [services that\n generate threat findings](/security-command-center/docs/concepts-security-sources#threats)."]]
