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Questo documento descrive un tipo di risultato di minaccia in Security Command Center. I risultati delle minacce vengono generati dai
rilevatori di minacce quando rilevano
una potenziale minaccia nelle tue risorse cloud. Per un elenco completo dei risultati relativi alle minacce disponibili, consulta l'Indice dei risultati relativi alle minacce.
Panoramica
Cloud Run Threat Detection ha osservato un processo che ha generato in modo imprevisto un processo shell secondario. Questo evento potrebbe indicare che un utente malintenzionato sta tentando di utilizzare in modo illecito comandi e script
della shell.
Indicatore VirusTotal: link alla pagina di analisi di VirusTotal
Nella scheda JSON, prendi nota dei seguenti campi:
processes: un array contenente tutti i processi correlati al problema. Questo
array include il processo della shell figlio e il processo padre.
resource:
project_display_name: il nome del progetto che contiene gli asset.
Cerca risultati correlati che si sono verificati in un momento simile per il contenitore interessato. Questi risultati potrebbero indicare che l'attività era dannosa,
anziché un mancato rispetto delle best practice.
Rivedi le impostazioni del contenitore interessato.
Controlla il valore hash SHA-256 del file binario segnalato come dannoso su
VirusTotal facendo clic sul link nell'indicatore VirusTotal. VirusTotal è un servizio di proprietà di Alphabet che
fornisce il contesto di file, URL, domini e indirizzi IP potenzialmente
dannosi.
Per sviluppare un piano di risposta, combina i risultati dell'indagine con la ricerca MITRE e l'analisi di VirusTotal.
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Difficile da capire","hardToUnderstand","thumb-down"],["Informazioni o codice di esempio errati","incorrectInformationOrSampleCode","thumb-down"],["Mancano le informazioni o gli esempi di cui ho bisogno","missingTheInformationSamplesINeed","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-09-05 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\nCloud Run Threat Detection observed a process that unexpectedly spawned a child shell\nprocess. This event might indicate that an attacker is trying to abuse shell\ncommands and scripts.\n\nDetection service\n\n[Cloud Run Threat Detection](/security-command-center/docs/cloud-run-threat-detection-overview)\n\nHow to respond\n\nTo respond to this finding, do the following:\n\nReview finding details\n\n1. Open the `Unexpected Child 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 - **Parent process**: the process that unexpectedly created the child shell process\n - **Child process**: the child shell process\n - **Arguments**: the arguments provided to the child shell process binary\n - **Environment variables**: the environment variables of the child shell process binary\n - **Containers**: the name of the container\n - **Containers URI**: the image URI of the container\n - **Affected resource** , especially the following fields:\n - **Resource display name**: the name of the affected resource.\n - **Resource full name** : the [full resource name](/apis/design/resource_names) of the affected Cloud Run resource\n - **Related links** , especially the following field:\n - **VirusTotal indicator**: link to the VirusTotal analysis page\n3. On the **JSON** tab, note the following fields:\n\n - `processes`: an array containing all processes related to the finding. This array includes the child shell process and the parent process.\n - `resource`:\n - `project_display_name`: name of the project that contains the assets.\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 entry for this finding type: [Command and\n Scripting Interpreter: Unix\n Shell](https://attack.mitre.org/techniques/T1059/004/).\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)."]]
