KNOTWEED File Hashes July 2022

let sha256Hashes = dynamic(["78c255a98003a101fa5ba3f49c50c6922b52ede601edac5db036ab72efc57629", "0588f61dc7e4b24554cffe4ea56d043d8f6139d2569bc180d4a77cf75b68792f", "441a3810b9e89bae12eea285a63f92e98181e9fb9efd6c57ef6d265435484964", "cbae79f66f724e0fe1705d6b5db3cc8a4e89f6bdf4c37004aa1d45eeab26e84b", "fd6515a71530b8329e2c0104d0866c5c6f87546d4b44cc17bbb03e64663b11fc", "5d169e083faa73f2920c8593fb95f599dad93d34a6aa2b0f794be978e44c8206", "7f29b69eb1af1cc6c1998bad980640bfe779525fd5bb775bc36a0ce3789a8bfc", "02a59fe2c94151a08d75a692b550e66a8738eb47f0001234c600b562bf8c227d", "7f84bf6a016ca15e654fb5ebc36fd7407cb32c69a0335a32bfc36cb91e36184d", "afab2e77dc14831f1719e746042063a8ec107de0e9730249d5681d07f598e5ec", "894138dfeee756e366c65a197b4dbef8816406bc32697fac6621601debe17d53", "4611340fdade4e36f074f75294194b64dcf2ec0db00f3d958956b4b0d6586431", "c96ae21b4cf2e28eec222cfe6ca903c4767a068630a73eca58424f9a975c6b7d", "fa30be45c5c5a8f679b42ae85410f6099f66fe2b38eb7aa460bcc022babb41ca", "e64bea4032cf2694e85ede1745811e7585d3580821a00ae1b9123bb3d2d442d6"]);
(union isfuzzy=true
(CommonSecurityLog
| where FileHash in (sha256Hashes)
| project TimeGenerated, Message, SourceUserID, FileHash, Type
| extend timestamp = TimeGenerated, FileHashCustomEntity = 'SHA256', Account = SourceUserID
),
(imFileEvent
| where TargetFileSHA256 has_any (sha256Hashes)
| extend Account = ActorUsername, Computer = DvcHostname, IPAddress = SrcIpAddr, CommandLine = ActingProcessCommandLine, FileHash = TargetFileSHA256
| project Type, TimeGenerated, Computer, Account, IPAddress, CommandLine, FileHash
),
(Event
| where Source =~ "Microsoft-Windows-Sysmon"
| where EventID == 1
| extend EvData = parse_xml(EventData)
| extend EventDetail = EvData.DataItem.EventData.Data
| extend Image = EventDetail.[4].["#text"],  CommandLine = EventDetail.[10].["#text"], Hashes = tostring(EventDetail.[17].["#text"])
| extend Hashes = extract_all(@"(?P<key>\w+)=(?P<value>[a-zA-Z0-9]+)", dynamic(["key","value"]), Hashes)
| extend Hashes = column_ifexists("Hashes", ""), CommandLine = column_ifexists("CommandLine", "")
| extend Hashes = todynamic(Hashes) | mv-expand Hashes
| where (Hashes[0] =~ "SHA256" and Hashes[1] has_any (sha256Hashes)) 
| project TimeGenerated, EventDetail, UserName, Computer, Type, Source, Hashes, CommandLine, Image
| extend Type = strcat(Type, ": ", Source)
| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\', -1)[-1]), FileHashCustomEntity = tostring(Hashes[1])
),
(DeviceEvents
| where InitiatingProcessSHA256 has_any (sha256Hashes) or SHA256 has_any (sha256Hashes)
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath
),
(DeviceFileEvents
| where SHA256 has_any (sha256Hashes)
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath
),
(DeviceImageLoadEvents
| where SHA256 has_any (sha256Hashes)
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath
)
)

queryFrequency: 1d
entityMappings:
- entityType: File
  fieldMappings:
  - columnName: FileHashCustomEntity
    identifier: Name
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: FullName
- entityType: Process
  fieldMappings:
  - columnName: ProcessCustomEntity
    identifier: ProcessId
- entityType: Host
  fieldMappings:
  - columnName: HostCustomEntity
    identifier: HostName
severity: High
tags:
- KNOTWEED
triggerThreshold: 0
relevantTechniques:
- T1203
query: |
  let sha256Hashes = dynamic(["78c255a98003a101fa5ba3f49c50c6922b52ede601edac5db036ab72efc57629", "0588f61dc7e4b24554cffe4ea56d043d8f6139d2569bc180d4a77cf75b68792f", "441a3810b9e89bae12eea285a63f92e98181e9fb9efd6c57ef6d265435484964", "cbae79f66f724e0fe1705d6b5db3cc8a4e89f6bdf4c37004aa1d45eeab26e84b", "fd6515a71530b8329e2c0104d0866c5c6f87546d4b44cc17bbb03e64663b11fc", "5d169e083faa73f2920c8593fb95f599dad93d34a6aa2b0f794be978e44c8206", "7f29b69eb1af1cc6c1998bad980640bfe779525fd5bb775bc36a0ce3789a8bfc", "02a59fe2c94151a08d75a692b550e66a8738eb47f0001234c600b562bf8c227d", "7f84bf6a016ca15e654fb5ebc36fd7407cb32c69a0335a32bfc36cb91e36184d", "afab2e77dc14831f1719e746042063a8ec107de0e9730249d5681d07f598e5ec", "894138dfeee756e366c65a197b4dbef8816406bc32697fac6621601debe17d53", "4611340fdade4e36f074f75294194b64dcf2ec0db00f3d958956b4b0d6586431", "c96ae21b4cf2e28eec222cfe6ca903c4767a068630a73eca58424f9a975c6b7d", "fa30be45c5c5a8f679b42ae85410f6099f66fe2b38eb7aa460bcc022babb41ca", "e64bea4032cf2694e85ede1745811e7585d3580821a00ae1b9123bb3d2d442d6"]);
  (union isfuzzy=true
  (CommonSecurityLog
  | where FileHash in (sha256Hashes)
  | project TimeGenerated, Message, SourceUserID, FileHash, Type
  | extend timestamp = TimeGenerated, FileHashCustomEntity = 'SHA256', Account = SourceUserID
  ),
  (imFileEvent
  | where TargetFileSHA256 has_any (sha256Hashes)
  | extend Account = ActorUsername, Computer = DvcHostname, IPAddress = SrcIpAddr, CommandLine = ActingProcessCommandLine, FileHash = TargetFileSHA256
  | project Type, TimeGenerated, Computer, Account, IPAddress, CommandLine, FileHash
  ),
  (Event
  | where Source =~ "Microsoft-Windows-Sysmon"
  | where EventID == 1
  | extend EvData = parse_xml(EventData)
  | extend EventDetail = EvData.DataItem.EventData.Data
  | extend Image = EventDetail.[4].["#text"],  CommandLine = EventDetail.[10].["#text"], Hashes = tostring(EventDetail.[17].["#text"])
  | extend Hashes = extract_all(@"(?P<key>\w+)=(?P<value>[a-zA-Z0-9]+)", dynamic(["key","value"]), Hashes)
  | extend Hashes = column_ifexists("Hashes", ""), CommandLine = column_ifexists("CommandLine", "")
  | extend Hashes = todynamic(Hashes) | mv-expand Hashes
  | where (Hashes[0] =~ "SHA256" and Hashes[1] has_any (sha256Hashes)) 
  | project TimeGenerated, EventDetail, UserName, Computer, Type, Source, Hashes, CommandLine, Image
  | extend Type = strcat(Type, ": ", Source)
  | extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\', -1)[-1]), FileHashCustomEntity = tostring(Hashes[1])
  ),
  (DeviceEvents
  | where InitiatingProcessSHA256 has_any (sha256Hashes) or SHA256 has_any (sha256Hashes)
  | project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type
  | extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath
  ),
  (DeviceFileEvents
  | where SHA256 has_any (sha256Hashes)
  | project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type
  | extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath
  ),
  (DeviceImageLoadEvents
  | where SHA256 has_any (sha256Hashes)
  | project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type
  | extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath
  )
  )  
id: a779e2d5-9109-4f0a-a75e-f3d4f3c58560
triggerOperator: gt
version: 1.0.2
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
  dataTypes:
  - DeviceEvents
  - DeviceFileEvents
  - DeviceImageLoadEvents
- connectorId: SecurityEvents
  dataTypes:
  - SecurityEvents
- connectorId: WindowsFirewall
  dataTypes:
  - WindowsFirewall
description: |
  'This query looks for references to known KNOTWEED file hashes in various logs.
    This query was published July 2022.
    Ref: https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/'  
queryPeriod: 1d
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Analytic Rules/KNOTWEEDFileHashesJuly2022.yaml
status: Available
name: KNOTWEED File Hashes July 2022
tactics:
- Execution
kind: Scheduled

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/a779e2d5-9109-4f0a-a75e-f3d4f3c58560')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/a779e2d5-9109-4f0a-a75e-f3d4f3c58560')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "KNOTWEED File Hashes July 2022",
        "description": "'This query looks for references to known KNOTWEED file hashes in various logs.\n  This query was published July 2022.\n  Ref: https://www.microsoft.com/security/blog/2022/07/27/untangling-knotweed-european-private-sector-offensive-actor-using-0-day-exploits/'\n",
        "severity": "High",
        "enabled": true,
        "query": "let sha256Hashes = dynamic([\"78c255a98003a101fa5ba3f49c50c6922b52ede601edac5db036ab72efc57629\", \"0588f61dc7e4b24554cffe4ea56d043d8f6139d2569bc180d4a77cf75b68792f\", \"441a3810b9e89bae12eea285a63f92e98181e9fb9efd6c57ef6d265435484964\", \"cbae79f66f724e0fe1705d6b5db3cc8a4e89f6bdf4c37004aa1d45eeab26e84b\", \"fd6515a71530b8329e2c0104d0866c5c6f87546d4b44cc17bbb03e64663b11fc\", \"5d169e083faa73f2920c8593fb95f599dad93d34a6aa2b0f794be978e44c8206\", \"7f29b69eb1af1cc6c1998bad980640bfe779525fd5bb775bc36a0ce3789a8bfc\", \"02a59fe2c94151a08d75a692b550e66a8738eb47f0001234c600b562bf8c227d\", \"7f84bf6a016ca15e654fb5ebc36fd7407cb32c69a0335a32bfc36cb91e36184d\", \"afab2e77dc14831f1719e746042063a8ec107de0e9730249d5681d07f598e5ec\", \"894138dfeee756e366c65a197b4dbef8816406bc32697fac6621601debe17d53\", \"4611340fdade4e36f074f75294194b64dcf2ec0db00f3d958956b4b0d6586431\", \"c96ae21b4cf2e28eec222cfe6ca903c4767a068630a73eca58424f9a975c6b7d\", \"fa30be45c5c5a8f679b42ae85410f6099f66fe2b38eb7aa460bcc022babb41ca\", \"e64bea4032cf2694e85ede1745811e7585d3580821a00ae1b9123bb3d2d442d6\"]);\n(union isfuzzy=true\n(CommonSecurityLog\n| where FileHash in (sha256Hashes)\n| project TimeGenerated, Message, SourceUserID, FileHash, Type\n| extend timestamp = TimeGenerated, FileHashCustomEntity = 'SHA256', Account = SourceUserID\n),\n(imFileEvent\n| where TargetFileSHA256 has_any (sha256Hashes)\n| extend Account = ActorUsername, Computer = DvcHostname, IPAddress = SrcIpAddr, CommandLine = ActingProcessCommandLine, FileHash = TargetFileSHA256\n| project Type, TimeGenerated, Computer, Account, IPAddress, CommandLine, FileHash\n),\n(Event\n| where Source =~ \"Microsoft-Windows-Sysmon\"\n| where EventID == 1\n| extend EvData = parse_xml(EventData)\n| extend EventDetail = EvData.DataItem.EventData.Data\n| extend Image = EventDetail.[4].[\"#text\"],  CommandLine = EventDetail.[10].[\"#text\"], Hashes = tostring(EventDetail.[17].[\"#text\"])\n| extend Hashes = extract_all(@\"(?P<key>\\w+)=(?P<value>[a-zA-Z0-9]+)\", dynamic([\"key\",\"value\"]), Hashes)\n| extend Hashes = column_ifexists(\"Hashes\", \"\"), CommandLine = column_ifexists(\"CommandLine\", \"\")\n| extend Hashes = todynamic(Hashes) | mv-expand Hashes\n| where (Hashes[0] =~ \"SHA256\" and Hashes[1] has_any (sha256Hashes)) \n| project TimeGenerated, EventDetail, UserName, Computer, Type, Source, Hashes, CommandLine, Image\n| extend Type = strcat(Type, \": \", Source)\n| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\\\', -1)[-1]), FileHashCustomEntity = tostring(Hashes[1])\n),\n(DeviceEvents\n| where InitiatingProcessSHA256 has_any (sha256Hashes) or SHA256 has_any (sha256Hashes)\n| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type\n| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath\n),\n(DeviceFileEvents\n| where SHA256 has_any (sha256Hashes)\n| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type\n| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath\n),\n(DeviceImageLoadEvents\n| where SHA256 has_any (sha256Hashes)\n| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, Type\n| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = InitiatingProcessSHA256,  CommandLine = InitiatingProcessCommandLine,Image = InitiatingProcessFolderPath\n)\n)\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution"
        ],
        "techniques": [
          "T1203"
        ],
        "alertRuleTemplateName": "a779e2d5-9109-4f0a-a75e-f3d4f3c58560",
        "customDetails": null,
        "entityMappings": [
          {
            "entityType": "File",
            "fieldMappings": [
              {
                "identifier": "Name",
                "columnName": "FileHashCustomEntity"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AccountCustomEntity"
              }
            ]
          },
          {
            "entityType": "Process",
            "fieldMappings": [
              {
                "identifier": "ProcessId",
                "columnName": "ProcessCustomEntity"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "identifier": "HostName",
                "columnName": "HostCustomEntity"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Analytic Rules/KNOTWEEDFileHashesJuly2022.yaml",
        "tags": [
          "KNOTWEED"
        ],
        "status": "Available",
        "templateVersion": "1.0.2"
      }
    }
  ]
}