Question Analysis
You notice rundll32.exe being used with desk.cpl,InstallScreenSaver on a Windows endpoint. Investigate your process creation logs to find which .scr file was loaded by this unusual invocation.
83a95136-a496-423c-81d3-1c6750133917
Question ID
9/16
Models Correct
1
Valid Answer
56%
Success Rate
Reference Answer
Human-validated correct answer for this question
not_an_scr.scr
Model Performance Comparison
See how different AI models performed on this question
| Model | Answer | KQL Query | Status | Attempts | Time | Cost |
|---|---|---|---|---|---|---|
| gemini-2.5-flash-preview-04-17 | not_an_scr.scr | DeviceProcessEvents
| where FileName == "rundll32.exe"
| where ProcessCommandLine contains "desk.cpl,InstallScreenSaver"
| extend ScreenSaverFile = extract(@',InstallScreenSaver (.*\.scr)', 1, ProcessCommandLine)
| project Timestamp, DeviceName, ProcessCommandLine, ScreenSaverFile | Correct | 1 | 8.49s | 0.0028 |
| gpt-35-turbo | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0118 |
| gpt-4-turbo-2024-04-09 | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.2488 |
| gpt-4.1 | not_an_scr.scr | DeviceProcessEvents
| where FileName =~ "rundll32.exe"
| where ProcessCommandLine has "desk.cpl,InstallScreenSaver" and ProcessCommandLine contains ".scr"
| extend ScreenSaverPath = extract(@"([A-Za-z]:\\[^ ]+?\.scr)", 1, ProcessCommandLine)
| project TimeGenerated, DeviceName, AccountName, ProcessCommandLine, ScreenSaverPath
| order by TimeGenerated desc | Correct | 1 | 3.93s | 0.0111 |
| gpt-4.1-finetuned | not_an_scr.scr | // This query targets rundll32.exe invocations of desk.cpl for InstallScreenSaver
DeviceProcessEvents
| where InitiatingProcessCommandLine has "rundll32.exe" and InitiatingProcessCommandLine has ",InstallScreenSaver"
| where FileName =~ "rundll32.exe" and ProcessCommandLine has ",InstallScreenSaver"
| project TimeGenerated, DeviceName, ProcessCommandLine, InitiatingProcessCommandLine, FileName, ProcessCreationTime, AccountName, AccountDomain
| Correct | 1 | 6.79s | 0.0114 |
| gpt-4.1-mini | not_an_scr.scr | DeviceProcessEvents
| where ProcessCommandLine has "desk.cpl,InstallScreenSaver" and FileName =~ "rundll32.exe"
| extend LoadedScrFile = extract(@"\b([\w\.-]+\.scr)\b", 1, ProcessCommandLine)
| project DeviceName, ProcessCreationTime, ProcessCommandLine, LoadedScrFile
| where isnotempty(LoadedScrFile)
| order by ProcessCreationTime desc | Correct | 1 | 3.60s | 0.0023 |
| gpt-4.1-nano | not_an_scr.scr | DeviceProcessEvents
| where FileName has "rundll32.exe"
| where ProcessCommandLine contains "desk.cpl,InstallScreenSaver"
| project ProcessId, ProcessCommandLine, InitiatingProcessFileName, InitiatingProcessFolderPath, InitiatingProcessCreationTime
| extend loadedScrFile = extract(@"(\w+\.scr)", 1, ProcessCommandLine)
| where isnotempty(loadedScrFile) | Correct | 2 | 174.80s | 0.0140 |
| gpt-4o | not_an_scr.scr | DeviceProcessEvents
| where InitiatingProcessCommandLine contains "desk.cpl,InstallScreenSaver"
| where ProcessCommandLine contains ".scr"
| project FileName, FolderPath, ProcessCommandLine, InitiatingProcessCommandLine, TimeGenerated, DeviceName | Correct | 3 | 30.91s | 0.0411 |
| grok-3-beta | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0917 |
| grok-3-mini-beta | not_an_scr.scr | DeviceProcessEvents
| where FileName == 'rundll32.exe'
| where ProcessCommandLine contains 'desk.cpl' and ProcessCommandLine contains 'InstallScreenSaver'
| extend ScrFile = extract(@'(?i)rundll32\.exe\s+desk\.cpl,InstallScreenSaver\s+([^\s]+\.scr)', 1, ProcessCommandLine)
| project TimeGenerated, DeviceName, ProcessCommandLine, ScrFile
| order by TimeGenerated desc | Correct | 1 | 12.77s | 0.0016 |
| o1-high | not_an_scr.scr | DeviceProcessEvents
| where FileName =~ "rundll32.exe"
| where ProcessCommandLine has "desk.cpl,InstallScreenSaver"
| extend LoadedScr = extract(@"desk\.cpl,InstallScreenSaver\s+([^\s]+\.scr)", 1, ProcessCommandLine)
| where isnotempty(LoadedScr)
| project TimeGenerated, DeviceName, AccountName, InitiatingProcessAccountName, ProcessCommandLine, LoadedScr
| order by TimeGenerated desc | Correct | 3 | 48.71s | 0.4229 |
| o1-low | not_an_scr.scr | DeviceProcessEvents
| where FileName == "rundll32.exe"
| where ProcessCommandLine has_cs "desk.cpl,InstallScreenSaver"
| extend LoadedScrFile = extract(@"desk\.cpl,InstallScreenSaver\s+([^\s]+\.scr)", 1, ProcessCommandLine)
| project TimeGenerated, DeviceName, AccountDomain, AccountName, ProcessCommandLine, LoadedScrFile
| order by TimeGenerated desc | Correct | 1 | 20.55s | 0.1716 |
| o3-mini-high | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0469 |
| o3-mini-low | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0486 |
| o4-mini-high | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0428 |
| o4-mini-low | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0569 |