// question
A Windows host executed an ICMP-based network reconnaissance using a looping instruction in cmd.exe. Identify the exact command line that was used to perform the ping sweep.
Reference KQL answer and model-by-model comparison.
6db1f57f-d1d5-4223-8a66-55c9c65a9592
question id
19/23
models correct
1
valid answer
83%
success rate
// reference answer
Human-validated correct answer for this question.
for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i
// model comparison
| Model | Answer | KQL query | Status | Tries | Time | Cost |
|---|---|---|---|---|---|---|
| gemini-2.5-flash-preview-04-17 | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where ActionType == "ProcessCreated" | where FileName == "cmd.exe" | where ProcessCommandLine contains "for" and ProcessCommandLine contains "ping" | project Timestamp, DeviceName, InitiatingProcessCommandLine, ProcessCommandLine, AccountName | pass | 1 | 8.68s | 0.0030 |
| gpt-35-turbo | ping -n 5 127.0.0.1 >nul 2>&1 | DeviceProcessEvents | where ActionType == 'ProcessCreated' and ProcessCommandLine contains 'ping' and ProcessCommandLine contains '-t' and ProcessCommandLine contains 'cmd.exe' | fail | 1 | 2.08s | 0.0030 |
| gpt-4-turbo-2024-04-09 | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where FileName == 'cmd.exe' and ProcessCommandLine has 'for' and ProcessCommandLine has 'ping' | project DeviceName, ProcessCommandLine, TimeGenerated | distinct ProcessCommandLine | pass | 1 | 7.70s | 0.0490 |
| gpt-4.1 | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents
| where tolower(FileName) == "cmd.exe" or tolower(InitiatingProcessFileName) == "cmd.exe"
| where (
(tolower(ProcessCommandLine) has "for" and tolower(ProcessCommandLine) has "ping" and ProcessCommandLine matches regex @"for.+(%%?\w).+ping")
or
(tolower(InitiatingProcessCommandLine) has "for" and tolower(InitiatingProcessCommandLine) has "ping" and InitiatingProcessCommandLine matches regex @"for.+(%%?\w).+ping")
)
| project TimeGenerated, DeviceName, AccountName, FileName, ProcessCommandLine, InitiatingProcessCommandLine
| order by TimeGenerated desc | pass | 5 | 30.65s | 0.0606 |
| gpt-4.1-finetuned | no answer | no query generated | fail | 5 | 0.00s | 0.0529 |
| gpt-4.1-mini | for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where InitiatingProcessParentFileName == "cmd.exe" | where ProcessCommandLine contains "ping" | where ProcessCommandLine matches regex @".*(for|while|foreach).* ping.*" | project DeviceName, ProcessCommandLine, TimeGenerated | order by TimeGenerated desc | pass | 2 | 6.06s | 0.0042 |
| gpt-4.1-nano | for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents
| where FileName == 'cmd.exe'
| where ProcessCommandLine has_any ('for', 'while') or ProcessCommandLine contains 'ping'
| project DeviceName, ProcessId, ProcessCommandLine, ProcessCreationTime, InitiatingProcessFileName | pass | 3 | 25.47s | 0.0010 |
| gpt-4o | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents
| where InitiatingProcessFileName == "cmd.exe"
| where InitiatingProcessCommandLine has_all ("ping", "-n", "&&") or InitiatingProcessCommandLine has_any ("for", "loop", "%%")
| project TimeGenerated, DeviceName, InitiatingProcessCommandLine, InitiatingProcessAccountDomain, InitiatingProcessAccountName | pass | 2 | 6.30s | 0.0378 |
| gpt-5-high | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | let ping_loop_regex = @"\bfor\s+/(l|f)\b[^\r\n]*\bdo\b[^\r\n]*\bping\b|\bset\s+/a\b[^\r\n]*&[^\r\n]*\bping\b[^\r\n]*&[^\r\n]*\bgoto\b"; DeviceProcessEvents | where ActionType == "ProcessCreated" | where FileName =~ "cmd.exe" | where isnotempty(ProcessCommandLine) | extend pcl = tolower(ProcessCommandLine) | where pcl has "ping" and (pcl matches regex ping_loop_regex) | project TimeGenerated, DeviceName, AccountDomain, AccountName, ProcessCommandLine | summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated), Executions=count() by DeviceName, AccountDomain, AccountName, ProcessCommandLine | order by LastSeen desc | pass | 1 | 68.05s | 0.0438 |
| gpt-5-mini-high | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | let cmdSources = (
DeviceProcessEvents
| extend CmdLine = coalesce(ProcessCommandLine, InitiatingProcessCommandLine)
| project Timestamp, DeviceName, FileName, ProcessId, CmdLine, InitiatingProcessFileName
)
| union (
DeviceEvents
| extend CmdLine = coalesce(ProcessCommandLine, InitiatingProcessCommandLine)
| project Timestamp, DeviceName, FileName, ProcessId, CmdLine, InitiatingProcessFileName
);
cmdSources
| where isnotempty(CmdLine)
| where (FileName has_cs "cmd.exe") or (InitiatingProcessFileName has_cs "cmd.exe") or tolower(CmdLine) contains "cmd.exe"
| where tolower(CmdLine) contains "ping"
| where (tolower(CmdLine) contains "for /l" or tolower(CmdLine) contains "for /f" or tolower(CmdLine) contains "for %")
| summarize FirstSeen=min(Timestamp), LastSeen=max(Timestamp), Examples=make_set(CmdLine, 20) by DeviceName, FileName, ProcessId
| mv-expand Examples
| project DeviceName, FileName, ProcessId, PingSweepCommandLine=Examples, FirstSeen, LastSeen
| order by FirstSeen desc | pass | 5 | 65.28s | 0.0185 |
| gpt-5-mini-low | cmd.exe /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | // Find cmd.exe-based ping sweeps using looping constructs let loopPingRegex = @"(?i)\bfor\b.*\bping\b|\bping\b.*\bfor\b"; // Primary: process creation events (best fidelity) let proc = DeviceProcessEvents | where FileName has_cs "cmd.exe" or ProcessCommandLine has_cs "cmd.exe" | where isnotempty(ProcessCommandLine) and ProcessCommandLine matches regex loopPingRegex | project TimeGenerated, DeviceName, AccountName, FileName, ProcessId, CommandLine = ProcessCommandLine; // Supplementary: other device events that may contain process command lines let dev = DeviceEvents | where (FileName has_cs "cmd.exe") or (ProcessCommandLine has_cs "cmd.exe") or (InitiatingProcessFileName has_cs "cmd.exe") | extend ProcessId = coalesce(ProcessId, InitiatingProcessId), CommandLine = coalesce(ProcessCommandLine, InitiatingProcessCommandLine) | where isnotempty(CommandLine) and CommandLine matches regex loopPingRegex | project TimeGenerated, DeviceName, AccountName, FileName, ProcessId, CommandLine; union isfuzzy=true proc, dev | summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated), Devices=make_set(DeviceName), Users=make_set(AccountName), Count=count(), PIDs=make_set(ProcessId) by CommandLine | order by FirstSeen desc | project FirstSeen, LastSeen, Count, Devices, Users, PIDs, CommandLine | take 100 // NOTE: TimeGenerated/time range is applied by the caller/environment. If needed, add an explicit where TimeGenerated between(...) filter. | pass | 2 | 37.26s | 0.0098 |
| gpt-5-mini-medium | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | union DeviceProcessEvents, DeviceEvents
| where FileName =~ "cmd.exe" or ProcessCommandLine has "cmd.exe"
| where ProcessCommandLine has "ping"
| where (
tolower(ProcessCommandLine) contains "for"
or ProcessCommandLine contains "%i"
or ProcessCommandLine contains "%%i"
or tolower(ProcessCommandLine) contains " do "
)
// get the most recent record for each distinct command line
| summarize arg_max(TimeGenerated, *) by ProcessCommandLine
| project TimeGenerated, DeviceName, ProcessId, InitiatingProcessId, InitiatingProcessFileName, AccountName, ProcessCommandLine, InitiatingProcessCommandLine
| sort by TimeGenerated desc | pass | 1 | 36.26s | 0.0077 |
| gpt-5-nano-high | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where tolower(InitiatingProcessFileName) == "cmd.exe" | where InitiatingProcessCommandLine contains "ping" and InitiatingProcessCommandLine contains "for /l" | project TimeGenerated, DeviceName, InitiatingProcessAccountName, InitiatingProcessCommandLine | sort by TimeGenerated desc | take 5 | pass | 1 | 37.73s | 0.0022 |
| gpt-5-nano-medium | no answer | no query generated | fail | 5 | 0.00s | 0.0073 |
| grok-3-beta | no answer | no query generated | fail | 5 | 0.00s | 0.1014 |
| grok-3-mini-beta | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where FileName =~ 'cmd.exe' | where ProcessCommandLine contains 'ping' and ProcessCommandLine contains 'for' | project TimeGenerated, DeviceName, ProcessCommandLine | order by TimeGenerated desc | limit 10 | pass | 1 | 12.76s | 0.0016 |
| o1-high | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents
| where ActionType =~ "ProcessCreated"
| where FileName =~ "cmd.exe"
| where ProcessCommandLine has_all ("ping", "for")
| project TimeGenerated, DeviceName, AccountDomain, AccountName, ProcessCommandLine
| order by TimeGenerated desc | pass | 1 | 47.18s | 0.2618 |
| o1-low | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where ActionType == "ProcessCreated" | where FileName == "cmd.exe" | where ProcessCommandLine contains "for /L" and ProcessCommandLine contains "ping" | project TimeGenerated, DeviceName, AccountName, ProcessCommandLine | pass | 1 | 37.96s | 0.2467 |
| o3-high | cmd.exe /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents
| where TimeGenerated between (ago(7d) .. now()) // Portal/function time-range overrides this
| where FileName =~ "cmd.exe"
| where ProcessCommandLine has_any ("for /l", "FOR /L")
| where ProcessCommandLine has "ping"
| where ProcessCommandLine matches regex @"(?i)for\s+/l\s+%+[a-z0-9]+\s+in\s+\([^)]*\)\s+do\s+ping"
| project TimeGenerated,
DeviceName,
AccountName,
ProcessCommandLine
| summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated), ExecCount=count() by DeviceName, AccountName, ProcessCommandLine
| order by LastSeen desc | pass | 1 | 32.08s | 0.0240 |
| o3-mini-high | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where InitiatingProcessFileName =~ "cmd.exe" | where InitiatingProcessCommandLine contains "ping" and InitiatingProcessCommandLine contains "for /l" | project TimeGenerated, DeviceName, InitiatingProcessCommandLine | order by TimeGenerated desc | pass | 1 | 15.01s | 0.0148 |
| o3-mini-low | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where InitiatingProcessFileName =~ "cmd.exe" | where InitiatingProcessCommandLine has "ping" | where InitiatingProcessCommandLine has "for" | project TimeGenerated, DeviceName, InitiatingProcessCommandLine | sort by TimeGenerated desc | pass | 1 | 27.20s | 0.0145 |
| o4-mini-high | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents // Apply your time range filter here (e.g. | where TimeGenerated between (start .. end)) | where FileName == "cmd.exe" | where ProcessCommandLine matches regex @"(?i)for\s+/?l.*ping" | project TimeGenerated, DeviceName, ProcessCommandLine | sort by TimeGenerated desc | pass | 1 | 90.18s | 0.0144 |
| o4-mini-low | "cmd.exe" /c for /l %i in (1,1,254) do ping -n 1 -w 100 192.168.1.%i | DeviceProcessEvents | where FileName == "cmd.exe" | where ProcessCommandLine has "for /L" and ProcessCommandLine has "ping" | project TimeGenerated, DeviceName, AccountName, ProcessCommandLine | sort by TimeGenerated asc | pass | 2 | 105.38s | 0.0214 |