AV detections related to SpringShell Vulnerability
Id | 3bd33158-3f0b-47e3-a50f-7c20a1b88038 |
Rulename | AV detections related to SpringShell Vulnerability |
Description | This query looks for Microsoft Defender AV detections related to the SpringShell vulnerability. In Microsoft Sentinel, the SecurityAlerts table includes only the Device Name of the affected device. This query joins the DeviceInfo table to clearly connect other information such as device group, IP, logged-on users, etc. This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available. Reference: https://www.microsoft.com/security/blog/2022/04/04/springshell-rce-vulnerability-guidance-for-protecting-against-and-detecting-cve-2022-22965/ |
Severity | High |
Tactics | InitialAccess |
Techniques | T1190 |
Required data connectors | MicrosoftThreatProtection |
Kind | Scheduled |
Query frequency | 1d |
Query period | 1d |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/AVSpringShell.yaml |
Version | 1.0.3 |
Arm template | 3bd33158-3f0b-47e3-a50f-7c20a1b88038.json |
let SpringShell_threats = dynamic(["Trojan:Python/SpringShellExpl", "Exploit:Python/SpringShell", "Backdoor:PHP/Remoteshell.V", "SpringShell"]);
DeviceInfo
| extend DeviceName = tolower(DeviceName)
| join kind=inner ( SecurityAlert
| where ProviderName =~ "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
| where ThreatName in~ (SpringShell_threats) or ThreatFamilyName in~ (SpringShell_threats)
| extend CompromisedEntity = tolower(CompromisedEntity)
) on $left.DeviceName == $right.CompromisedEntity
| summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities
| extend HostName = tostring(split(CompromisedEntity, ".")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)
triggerOperator: gt
queryFrequency: 1d
description: |
'This query looks for Microsoft Defender AV detections related to the SpringShell vulnerability. In Microsoft Sentinel, the SecurityAlerts table includes only the Device Name of the affected device.
This query joins the DeviceInfo table to clearly connect other information such as device group, IP, logged-on users, etc. This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available.
Reference: https://www.microsoft.com/security/blog/2022/04/04/springshell-rce-vulnerability-guidance-for-protecting-against-and-detecting-cve-2022-22965/'
status: Available
kind: Scheduled
triggerThreshold: 0
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
dataTypes:
- SecurityAlert
version: 1.0.3
queryPeriod: 1d
name: AV detections related to SpringShell Vulnerability
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/AVSpringShell.yaml
id: 3bd33158-3f0b-47e3-a50f-7c20a1b88038
tags:
- CVE-2022-22965
- SpringShell
- Spring4Shell
tactics:
- InitialAccess
relevantTechniques:
- T1190
severity: High
entityMappings:
- fieldMappings:
- identifier: FullName
columnName: CompromisedEntity
- identifier: HostName
columnName: HostName
- identifier: DnsDomain
columnName: HostNameDomain
entityType: Host
- fieldMappings:
- identifier: Address
columnName: PublicIP
entityType: IP
query: |
let SpringShell_threats = dynamic(["Trojan:Python/SpringShellExpl", "Exploit:Python/SpringShell", "Backdoor:PHP/Remoteshell.V", "SpringShell"]);
DeviceInfo
| extend DeviceName = tolower(DeviceName)
| join kind=inner ( SecurityAlert
| where ProviderName =~ "MDATP"
| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)
| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)
| where ThreatName in~ (SpringShell_threats) or ThreatFamilyName in~ (SpringShell_threats)
| extend CompromisedEntity = tolower(CompromisedEntity)
) on $left.DeviceName == $right.CompromisedEntity
| summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities
| extend HostName = tostring(split(CompromisedEntity, ".")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2023-02-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/3bd33158-3f0b-47e3-a50f-7c20a1b88038')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/3bd33158-3f0b-47e3-a50f-7c20a1b88038')]",
"properties": {
"alertRuleTemplateName": "3bd33158-3f0b-47e3-a50f-7c20a1b88038",
"customDetails": null,
"description": "'This query looks for Microsoft Defender AV detections related to the SpringShell vulnerability. In Microsoft Sentinel, the SecurityAlerts table includes only the Device Name of the affected device.\n This query joins the DeviceInfo table to clearly connect other information such as device group, IP, logged-on users, etc. This would allow the Microsoft Sentinel analyst to have more context related to the alert, if available.\n Reference: https://www.microsoft.com/security/blog/2022/04/04/springshell-rce-vulnerability-guidance-for-protecting-against-and-detecting-cve-2022-22965/'\n",
"displayName": "AV detections related to SpringShell Vulnerability",
"enabled": true,
"entityMappings": [
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "CompromisedEntity",
"identifier": "FullName"
},
{
"columnName": "HostName",
"identifier": "HostName"
},
{
"columnName": "HostNameDomain",
"identifier": "DnsDomain"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "PublicIP",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/AVSpringShell.yaml",
"query": "let SpringShell_threats = dynamic([\"Trojan:Python/SpringShellExpl\", \"Exploit:Python/SpringShell\", \"Backdoor:PHP/Remoteshell.V\", \"SpringShell\"]);\nDeviceInfo\n| extend DeviceName = tolower(DeviceName)\n| join kind=inner ( SecurityAlert\n| where ProviderName =~ \"MDATP\"\n| extend ThreatName = tostring(parse_json(ExtendedProperties).ThreatName)\n| extend ThreatFamilyName = tostring(parse_json(ExtendedProperties).ThreatFamilyName)\n| where ThreatName in~ (SpringShell_threats) or ThreatFamilyName in~ (SpringShell_threats)\n| extend CompromisedEntity = tolower(CompromisedEntity)\n) on $left.DeviceName == $right.CompromisedEntity\n| summarize by DisplayName, ThreatName, ThreatFamilyName, PublicIP, AlertSeverity, Description, tostring(LoggedOnUsers), DeviceId, TenantId , bin(TimeGenerated, 1d), CompromisedEntity, tostring(LoggedOnUsers), ProductName, Entities\n| extend HostName = tostring(split(CompromisedEntity, \".\")[0]), DomainIndex = toint(indexof(CompromisedEntity, '.'))\n| extend HostNameDomain = iff(DomainIndex != -1, substring(CompromisedEntity, DomainIndex + 1), CompromisedEntity)\n",
"queryFrequency": "P1D",
"queryPeriod": "P1D",
"severity": "High",
"status": "Available",
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"InitialAccess"
],
"tags": [
"CVE-2022-22965",
"SpringShell",
"Spring4Shell"
],
"techniques": [
"T1190"
],
"templateVersion": "1.0.3",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}