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Code Issues Projects Releases Wiki Activity

Detection Resources and Other Updates (#179)

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* Add detection links for scripts

* Add detection links for OtherMSBins. Fixed and updated as needed.

* Add detection links for MSBins. Fixed and updated as needed.

* Add detection links for oslibraries

* Updating template for Detections

* Removing empty Detection:Sigma entries

* Remove redundant blank line

* Replacing commit URL with file URL

Co-authored-by: root <root@DESKTOP-5CR935D.localdomain>
Co-authored-by: Wietze <wietze@users.noreply.github.com>
This commit is contained in:
bohops
2021-11-15 08:19:03 -05:00
committed by GitHub
parent 2031916b1a
commit 23dd0236ae
145 changed files with 558 additions and 181 deletions
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14
yml/OSBinaries/Microsoft.Workflow.Compiler.yml
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@@ -28,11 +28,17 @@ Commands:
Full_Path:
- Path: C:\Windows\Microsoft.Net\Framework64\v4.0.30319\Microsoft.Workflow.Compiler.exe
Code_Sample:
- Code:
- Code:
Detection:
- IOC: Microsoft.Workflow.Compiler.exe would not normally be run on workstations.
- IOC: The presence of csc.exe or vbc.exe as child processes of Microsoft.Workflow.Compiler.exe
- IOC: Presence of "<CompilerInput" in a text file.
- Sigma: https://github.com/SigmaHQ/sigma/blob/85d47aeabc25bbd023284849f4466c1e00b855ce/rules/windows/process_creation/win_workflow_compiler.yml
- Splunk: https://github.com/splunk/security_content/blob/961a81d4a5cb5c5febec4894d6d812497171a85c/detections/endpoint/suspicious_microsoft_workflow_compiler_usage.yml
- Splunk: https://github.com/splunk/security_content/blob/18f63553a9dc1a34122fa123deae2b2f9b9ea391/detections/endpoint/suspicious_microsoft_workflow_compiler_rename.yml
- Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_unusual_process_network_connection.toml
- Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_network_connection_from_windows_binary.toml
- BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules
- IOC: Microsoft.Workflow.Compiler.exe would not normally be run on workstations.
- IOC: The presence of csc.exe or vbc.exe as child processes of Microsoft.Workflow.Compiler.exe
- IOC: Presence of "<CompilerInput" in a text file.
Resources:
- Link: https://twitter.com/mattifestation/status/1030445200475185154
- Link: https://posts.specterops.io/arbitrary-unsigned-code-execution-vector-in-microsoft-workflow-compiler-exe-3d9294bc5efb