Question Analysis
An attacker leveraged a PowerShell command on a Windows host to enumerate browser bookmark files across all user profiles. Examine the process execution logs to determine the exact filename that was being searched for.
faab755e-4299-48ec-8202-fc7885eb6545
Question ID
6/16
Models Correct
1
Valid Answer
38%
Success Rate
Reference Answer
Human-validated correct answer for this question
Bookmarks
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 | Bookmarks | DeviceProcessEvents
| where FileName =~ "powershell.exe"
| where ProcessCommandLine has "Get-ChildItem" or ProcessCommandLine has "dir"
| where ProcessCommandLine has @"C:\Users\"
| where ProcessCommandLine has "Bookmarks" or ProcessCommandLine has "places.sqlite" or ProcessCommandLine has "*.html" or ProcessCommandLine has "*.url"
| project Timestamp, DeviceName, AccountName, ProcessCommandLine, InitiatingProcessFileName, InitiatingProcessCommandLine | Correct | 4 | 39.64s | 0.0206 |
| 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 | 0.2306 |
| gpt-4.1 | Bookmarks | DeviceProcessEvents
| where FileName =~ "powershell.exe"
| where ProcessCommandLine has_any ("Bookmarks", "bookmarks", "Bookmarks.bak", "Favorites", "favorites.db", "favicons.db", "places.sqlite", "user_data")
| extend SearchedFile = extract(@"(Bookmarks(\\.bak)?|favorites\\.db|favicons\\.db|places\\.sqlite|user_data)", 0, ProcessCommandLine)
| where isnotempty(SearchedFile)
| project TimeGenerated, DeviceName, AccountName, ProcessCommandLine, SearchedFile | Correct | 1 | 9.20s | 0.0114 |
| gpt-4.1-finetuned | /.config/chromium/Bookmarks | // Step 1: Find PowerShell events related to Chrome Bookmark
DeviceProcessEvents
| where InitiatingProcessCommandLine has "Bookmarks" and InitiatingProcessCommandLine has "Chrome"
// Step 2: Extract the exact filename being searched for
| summarize arg_max(Timestamp, *) by InitiatingProcessCommandLine
| extend RawFileName = extract(@'Open-FileName\s+"?([a-zA-Z0-9 _.-]*)', 1, InitiatingProcessCommandLine)
// Step 3: Clean up the filename value
| extend Filename = trim("\"", RawFileName)
| project Filename, InitiatingProcessCommandLine, AccountName, DeviceName, Timestamp
// Step 4: Keep the latest entry if there are duplicates
| summarize arg_max(Timestamp, *) by Filename
| sort by Filename asc | Correct | 3 | 27.27s | 0.0337 |
| gpt-4.1-mini | \Desktop\YOUR_FILES.txt | DeviceProcessEvents
| where InitiatingProcessFileName contains "powershell"
| where ProcessCommandLine has_any (".url", ".website", "bookmarks", "favorites", ".json", ".adr", ".bookmark", ".dat", ".txt")
| extend SearchedFilePattern = extract(@"([\w:\\\/\._\-]+\.(url|website|json|adr|txt|dat|bookmark|favorites?))", 0, ProcessCommandLine)
| where isnotempty(SearchedFilePattern)
| summarize Count = count(), Devices = make_set(DeviceName), Users = make_set(InitiatingProcessAccountName) by SearchedFilePattern
| order by Count desc
| project SearchedFilePattern, Count, Devices, Users | Incorrect | 4 | 29.90s | 0.0053 |
| gpt-4.1-nano | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0013 |
| gpt-4o | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0471 |
| grok-3-beta | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0979 |
| grok-3-mini-beta | Bookmarks | DeviceProcessEvents
| where FileName endswith "powershell.exe"
| where ProcessCommandLine contains "Get-ChildItem" or ProcessCommandLine contains "dir" or ProcessCommandLine contains "bookmarks"
| project DeviceName, Timestamp, ProcessCommandLine
| order by Timestamp desc | Correct | 1 | 15.79s | 0.0024 |
| o1-high | Bookmarks | DeviceProcessEvents
| where ActionType == "ProcessCreated"
| where tolower(FileName) contains "powershell" or tolower(InitiatingProcessFileName) contains "powershell"
| where tolower(ProcessCommandLine) contains "bookmark"
| project TimeGenerated, DeviceName, AccountName, ProcessCommandLine, FolderPath, FileName
| order by TimeGenerated desc | Correct | 2 | 56.02s | 0.3955 |
| o1-low | Bookmarks | DeviceProcessEvents
| where ActionType == "ProcessCreated"
| where FileName =~ "powershell.exe"
| where tolower(ProcessCommandLine) contains "bookmark" or tolower(ProcessCommandLine) contains "favorites"
| project TimeGenerated, DeviceName, AccountDomain, AccountName, FolderPath, ProcessCommandLine | Correct | 2 | 43.12s | 0.3485 |
| o3-mini-high | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0493 |
| o3-mini-low | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0433 |
| o4-mini-high | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0387 |
| o4-mini-low | No answer provided | No query generated | Incorrect | 5 | 0.00s | 0.0358 |