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Merge pull request #10399 from JouniMi/impacket_wmiexec
Adding query to hunt for impacket wmiexec
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Hunting Queries/Microsoft 365 Defender/Execution/detect-impacket-wmiexec.yaml
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| id: e5c65f1f-2bf8-4b42-af8b-1f6adfeda0cc | ||
| name: detect-impacket-wmiexec | ||
| description: | | ||
| This query looks for signs of impacket wmiexec module usage. May hit other wmi execution-like techniques too. | ||
| Author: Jouni Mikkola | ||
| More info: https://threathunt.blog/impacket-part-2/ | ||
| requiredDataConnectors: | ||
| - connectorId: MicrosoftThreatProtection | ||
| dataTypes: | ||
| - DeviceEvents | ||
| - DeviceNetworkEvents | ||
| - DeviceProcessEvents | ||
| tactics: | ||
| - Execution | ||
| relevantTechniques: | ||
| - T1047 | ||
| query: | | ||
| let LookupTime = 30d; | ||
| let GetRareWMIProcessLaunches = materialize ( | ||
| DeviceEvents | ||
| | where Timestamp > ago(LookupTime) | ||
| | where ActionType == @"ProcessCreatedUsingWmiQuery" | ||
| | where isnotempty(FileName) | ||
| | summarize count() by SHA1, InitiatingProcessCommandLine | ||
| | where count_ < 5 | distinct SHA1); | ||
| DeviceEvents | ||
| | where Timestamp > ago(LookupTime) | ||
| | where ActionType == @"ProcessCreatedUsingWmiQuery" | ||
| | where SHA1 in~ (GetRareWMIProcessLaunches) | ||
| | where isnotempty(FileName) | ||
| | project DeviceName, WMIProcessLaunchTimestmap = Timestamp, ProcessLaunchedByWMI = tolower(FileName), ProcessLaunchedByWMICommandLine = tolower(ProcessCommandLine), ProcessLaunchedByWMICreationTime = ProcessCreationTime, ProcessLaunchedByWMISHA1 = tolower(SHA1), ProcessLaunchedByWMIID = ProcessId, InitiatingProcessFileName, InitiatingProcessCommandLine, InitiatingProcessParentCreationTime, InitiatingProcessParentFileName | ||
| | join kind=leftouter ( | ||
| DeviceProcessEvents | ||
| | where Timestamp > ago(LookupTime) | ||
| | where InitiatingProcessSHA1 in~ (GetRareWMIProcessLaunches) | ||
| |project DeviceName, ChildProcessTimestamp = Timestamp, ProcessLaunchedByWMI = tolower(InitiatingProcessFileName), ProcessLaunchedByWMICommandLine = tolower(InitiatingProcessCommandLine), ProcessLaunchedByWMICreationTime = InitiatingProcessCreationTime, ProcessLaunchedByWMISHA1 = tolower(InitiatingProcessSHA1), ProcessLaunchedByWMIID = InitiatingProcessId, WMIchild = FileName, WMIChildCommandline = ProcessCommandLine | ||
| ) on DeviceName, ProcessLaunchedByWMI, ProcessLaunchedByWMICommandLine, ProcessLaunchedByWMISHA1, ProcessLaunchedByWMIID | ||
| | join kind=leftouter ( | ||
| DeviceNetworkEvents | ||
| | where Timestamp > ago(LookupTime) | ||
| | where InitiatingProcessSHA1 in~ (GetRareWMIProcessLaunches) | ||
| |project DeviceName, ChildProcessTimestamp = Timestamp, ProcessLaunchedByWMI = tolower(InitiatingProcessFileName), ProcessLaunchedByWMICommandLine = tolower(InitiatingProcessCommandLine), ProcessLaunchedByWMICreationTime = InitiatingProcessCreationTime, ProcessLaunchedByWMISHA1 = tolower(InitiatingProcessSHA1), ProcessLaunchedByWMIID = InitiatingProcessId, WMIProcessRemoteIP = RemoteIP, WMIProcessRemoteURL = RemoteUrl | ||
| ) on DeviceName, ProcessLaunchedByWMI, ProcessLaunchedByWMICommandLine, ProcessLaunchedByWMISHA1, ProcessLaunchedByWMIID | ||
| | where isnotempty(WMIProcessRemoteIP) or isnotempty(WMIchild) | ||
| | summarize ConnectedAddresses = make_set(WMIProcessRemoteIP), ConnectedURLs = make_set(WMIProcessRemoteURL), LaunchedProcessNames = make_set(WMIchild), LaunchedProcessCmdlines = make_set(WMIChildCommandline) by DeviceName, ProcessLaunchedByWMI, ProcessLaunchedByWMICommandLine, ProcessLaunchedByWMICreationTime, ProcessLaunchedByWMISHA1, ProcessLaunchedByWMIID |