Nasreddine Bencherchali
b86a494f55
new: Potential CommandLine Obfuscation Using Unicode Characters From Suspicious Image - A detection replacement for `e0552b19-5a83-4222-b141-b36184bb8d79` remove: OMIGOD SCX RunAsProvider ExecuteShellCommand - Auditd - Moved to "unsupported" folder, due to the need of correlation. remove: Potential Persistence Via COM Search Order Hijacking - Moved to "deprecated" in favour of `790317c0-0a36-4a6a-a105-6e576bf99a14`. update: Potential CommandLine Obfuscation Using Unicode Characters - Moved to "threat-hunting" due to the nature FPs update: Potential Remote WMI ActiveScriptEventConsumers Activity - Moved to "threat-hunting" as its meant as an enrichment rule.
35 lines
1.4 KiB
YAML
35 lines
1.4 KiB
YAML
title: OMIGOD SCX RunAsProvider ExecuteShellCommand - Auditd
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id: 045b5f9c-49f7-4419-a236-9854fb3c827a
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status: unsupported # This rule requires correlations. See https://github.com/SigmaHQ/sigma/discussions/4440#discussioncomment-7070862 and https://user-images.githubusercontent.com/9653181/133756156-4fb9c2b1-aa65-4380-957b-72170de36fc4.png
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description: |
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Rule to detect the use of the SCX RunAsProvider Invoke_ExecuteShellCommand to execute any UNIX/Linux command using the /bin/sh shell.
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SCXcore, started as the Microsoft Operations Manager UNIX/Linux Agent, is now used in a host of products including Microsoft Operations Manager.
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Microsoft Azure, and Microsoft Operations Management Suite.
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references:
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- https://www.wiz.io/blog/omigod-critical-vulnerabilities-in-omi-azure
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- https://github.com/Azure/Azure-Sentinel/pull/3059
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author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
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date: 2021-09-17
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modified: 2024-09-02
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tags:
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- attack.privilege-escalation
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- attack.initial-access
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- attack.execution
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- attack.t1068
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- attack.t1190
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- attack.t1203
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logsource:
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product: linux
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service: auditd
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detection:
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selection:
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type: 'SYSCALL'
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syscall: 'execve'
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uid: 0
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cwd: '/var/opt/microsoft/scx/tmp'
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comm: 'sh'
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condition: selection
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falsepositives:
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- Legitimate use of SCX RunAsProvider Invoke_ExecuteShellCommand.
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level: high
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