SOURGUM Actor IOC - July 2021
| Id | 94749332-1ad9-49dd-a5ab-5ff2170788fc |
| Rulename | SOURGUM Actor IOC - July 2021 |
| Description | Identifies a match across IOC’s related to an actor tracked by Microsoft as SOURGUM |
| Severity | High |
| Tactics | Persistence |
| Techniques | T1546 |
| Required data connectors | AzureFirewall AzureMonitor(VMInsights) CEF CheckPoint CiscoASA DNS F5 Fortinet MicrosoftThreatProtection Office365 PaloAltoNetworks SecurityEvents WindowsFirewall WindowsForwardedEvents WindowsSecurityEvents |
| Kind | Scheduled |
| Query frequency | 6h |
| Query period | 6h |
| Trigger threshold | 0 |
| Trigger operator | gt |
| Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Analytic Rules/SOURGUM_IOC.yaml |
| Version | 1.2.1 |
| Arm template | 94749332-1ad9-49dd-a5ab-5ff2170788fc.json |
let iocs = externaldata(DateAdded:string,IoC:string,Type:string,TLP:string) [@"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/SOURGUM.csv"] with (format="csv", ignoreFirstRecord=True);
let domains = (iocs | where Type =~ "domainname"| project IoC);
let sha256Hashes = (iocs | where Type =~ "sha256" | project IoC);
let file_path1 = (iocs | where Type =~ "filepath1" | project IoC);
let file_path2 = (iocs | where Type =~ "filepath2" | project IoC);
let file_path3 = (iocs | where Type =~ "filepath3" | project IoC);
let reg_key = (iocs | where Type =~ "regkey" | project IoC);
(union isfuzzy=true
(CommonSecurityLog
| where DestinationHostName has_any (domains) or RequestURL has_any (domains) or Message has_any (domains)
| parse Message with * '(' DNSName ')' *
| project TimeGenerated, Message, SourceUserID, RequestURL, DestinationHostName, Type, SourceIP, DestinationIP, DNSName
| extend timestamp = TimeGenerated, AccountCustomEntity = SourceUserID, UrlCustomEntity = RequestURL , IPCustomEntity = DestinationIP, DNSCustomEntity = DNSName
),
(DnsEvents
| where Name in~ (domains)
| project TimeGenerated, Computer, IPAddresses, Name, ClientIP, Type
| extend DNSName = Name, Host = Computer
| extend timestamp = TimeGenerated, HostCustomEntity = Host, DNSCustomEntity = DNSName, IPCustomEntity = IPAddresses
),
(VMConnection
| where RemoteDnsCanonicalNames has_any (domains)
| parse RemoteDnsCanonicalNames with * '["' DNSName '"]' *
| project TimeGenerated, Computer, Direction, RemoteDnsCanonicalNames, ProcessName, SourceIp, DestinationIp, DestinationPort, DNSName,BytesSent, BytesReceived, RemoteCountry, Type
| extend timestamp = TimeGenerated, IPCustomEntity = DestinationIp, HostCustomEntity = Computer, ProcessCustomEntity = ProcessName, DNSCustomEntity = DNSName
),
(Event
| where Source == "Microsoft-Windows-Sysmon"
| where EventID == 3
| extend EvData = parse_xml(EventData)
| extend EventDetail = EvData.DataItem.EventData.Data
| extend SourceIP = tostring(EventDetail.[9].["#text"]), DestinationIP = tostring(EventDetail.[14].["#text"]), Image = EventDetail.[4].["#text"]
| where Image has_any (file_path1) or Image has_any (file_path3)
| project TimeGenerated, SourceIP, DestinationIP, Image, UserName, Computer, EventDetail, Type
| extend timestamp = TimeGenerated, AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\', -1)[-1]), HostCustomEntity = Computer , IPCustomEntity = DestinationIP
),
(DeviceNetworkEvents
| where (RemoteUrl has_any (domains)) or (InitiatingProcessSHA256 in (sha256Hashes) and InitiatingProcessFolderPath has_any (file_path1)) or InitiatingProcessFolderPath has_any (file_path3)
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, RemoteIP, RemoteUrl, LocalIP, Type
| extend timestamp = TimeGenerated, IPCustomEntity = RemoteIP, HostCustomEntity = DeviceName, UrlCustomEntity =RemoteUrl
),
(AzureDiagnostics
| where ResourceType == "AZUREFIREWALLS"
| where Category == "AzureFirewallDnsProxy"
| project TimeGenerated,Resource, msg_s, Type
| parse msg_s with "DNS Request: " ClientIP ":" ClientPort " - " QueryID " " Request_Type " " Request_Class " " Request_Name ". " Request_Protocol " " Request_Size " " EDNSO_DO " " EDNS0_Buffersize " " Responce_Code " " Responce_Flags " " Responce_Size " " Response_Duration
| where Request_Name has_any (domains)
| extend timestamp = TimeGenerated, DNSName = Request_Name, IPCustomEntity = ClientIP
),
(AzureDiagnostics
| where ResourceType == "AZUREFIREWALLS"
| where Category == "AzureFirewallApplicationRule"
| project TimeGenerated,Resource, msg_s
| parse msg_s with Protocol 'request from ' SourceHost ':' SourcePort 'to ' DestinationHost ':' DestinationPort '. Action:' Action
| where DestinationHost has_any (domains)
| extend timestamp = TimeGenerated, DNSName = DestinationHost, IPCustomEntity = SourceHost
),
(AZFWDnsQuery
| where QueryName has_any (domains)
| extend timestamp = TimeGenerated, DNSName = QueryName, IPCustomEntity = SourceIp
),
(AZFWApplicationRule
| where Fqdn has_any (domains)
| extend timestamp = TimeGenerated, DNSName = Fqdn, IPCustomEntity = SourceIp
),
(Event
| where Source == "Microsoft-Windows-Sysmon"
| where EventID == 1
| extend EvData = parse_xml(EventData)
| extend EventDetail = EvData.DataItem.EventData.Data
| parse EventDetail with * 'SHA256=' SHA256 '",' *
| extend Image = EventDetail.[4].["#text"], CommandLine = EventDetail.[10].["#text"]
| where (SHA256 has_any (sha256Hashes) and Image has_any (file_path1)) or (Image has_any (file_path3)) or ( CommandLine has_any (file_path3)) or ( CommandLine has_any (file_path1)) or ( CommandLine has 'reg add' and CommandLine has_any (reg_key) and CommandLine has_any (file_path2))
| project TimeGenerated, EventDetail, UserName, Computer, Type, Source, SHA256, CommandLine, Image
| extend Type = strcat(Type, ": ", Source)
| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\', -1)[-1]), AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = SHA256
),
(DeviceRegistryEvents
| where RegistryKey has_any (reg_key) and RegistryValueData has_any (file_path2)
| 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
),
(DeviceProcessEvents
| where ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3)) or ( InitiatingProcessCommandLine has 'reg add' and InitiatingProcessCommandLine has_any (reg_key) and InitiatingProcessCommandLine has_any (file_path2)) or (InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3))
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, FolderPath, Type
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256
),
(DeviceFileEvents
| where (InitiatingProcessSHA256 has_any (sha256Hashes) and InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3)) or ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3))
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, RequestAccountName, RequestSourceIP, InitiatingProcessSHA256, FolderPath, Type
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = RequestAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256
),
(DeviceEvents
| where ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3)) or ( InitiatingProcessCommandLine has 'reg add' and InitiatingProcessCommandLine has_any (reg_key) and InitiatingProcessCommandLine has_any (file_path2)) or (InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3))
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, FolderPath, Type
| extend CommandLine = InitiatingProcessCommandLine
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256
),
( SecurityEvent
| where EventID == 4688
| where ( CommandLine has_any (file_path1)) or ( CommandLine has_any (file_path3)) or ( CommandLine has 'reg add' and CommandLine has_any (reg_key) and CommandLine has_any (file_path2)) or (NewProcessName has_any (file_path1)) or (NewProcessName has_any (file_path3)) or (ParentProcessName has_any (file_path1)) or (ParentProcessName has_any (file_path3))
| project TimeGenerated, Computer, NewProcessName, ParentProcessName, Account, NewProcessId, Type
| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = Account, ProcessCustomEntity = NewProcessName
)
)
version: 1.2.1
status: Available
queryFrequency: 6h
requiredDataConnectors:
- connectorId: DNS
dataTypes:
- DnsEvents
- connectorId: AzureMonitor(VMInsights)
dataTypes:
- VMConnection
- connectorId: F5
dataTypes:
- CommonSecurityLog
- connectorId: CiscoASA
dataTypes:
- CommonSecurityLog
- connectorId: PaloAltoNetworks
dataTypes:
- CommonSecurityLog
- connectorId: Fortinet
dataTypes:
- CommonSecurityLog
- connectorId: CheckPoint
dataTypes:
- CommonSecurityLog
- connectorId: CEF
dataTypes:
- CommonSecurityLog
- connectorId: MicrosoftThreatProtection
dataTypes:
- DeviceNetworkEvents
- DeviceRegistryEvents
- DeviceFileEvents
- DeviceEvents
- DeviceProcessEvents
- connectorId: SecurityEvents
dataTypes:
- SecurityEvent
- connectorId: Office365
dataTypes:
- OfficeActivity
- connectorId: AzureFirewall
dataTypes:
- AzureDiagnostics
- AZFWApplicationRule
- AZFWDnsQuery
- connectorId: WindowsFirewall
dataTypes:
- WindowsFirewall
- connectorId: WindowsSecurityEvents
dataTypes:
- SecurityEvents
- connectorId: WindowsForwardedEvents
dataTypes:
- WindowsEvent
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: FullName
entityType: Account
- fieldMappings:
- columnName: HostCustomEntity
identifier: FullName
entityType: Host
- fieldMappings:
- columnName: IPCustomEntity
identifier: Address
entityType: IP
- fieldMappings:
- columnName: ProcessCustomEntity
identifier: ProcessId
entityType: Process
- fieldMappings:
- columnName: AlgorithmCustomEntity
identifier: Algorithm
- columnName: FileHashCustomEntity
identifier: Value
entityType: FileHash
kind: Scheduled
queryPeriod: 6h
severity: High
query: |
let iocs = externaldata(DateAdded:string,IoC:string,Type:string,TLP:string) [@"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/SOURGUM.csv"] with (format="csv", ignoreFirstRecord=True);
let domains = (iocs | where Type =~ "domainname"| project IoC);
let sha256Hashes = (iocs | where Type =~ "sha256" | project IoC);
let file_path1 = (iocs | where Type =~ "filepath1" | project IoC);
let file_path2 = (iocs | where Type =~ "filepath2" | project IoC);
let file_path3 = (iocs | where Type =~ "filepath3" | project IoC);
let reg_key = (iocs | where Type =~ "regkey" | project IoC);
(union isfuzzy=true
(CommonSecurityLog
| where DestinationHostName has_any (domains) or RequestURL has_any (domains) or Message has_any (domains)
| parse Message with * '(' DNSName ')' *
| project TimeGenerated, Message, SourceUserID, RequestURL, DestinationHostName, Type, SourceIP, DestinationIP, DNSName
| extend timestamp = TimeGenerated, AccountCustomEntity = SourceUserID, UrlCustomEntity = RequestURL , IPCustomEntity = DestinationIP, DNSCustomEntity = DNSName
),
(DnsEvents
| where Name in~ (domains)
| project TimeGenerated, Computer, IPAddresses, Name, ClientIP, Type
| extend DNSName = Name, Host = Computer
| extend timestamp = TimeGenerated, HostCustomEntity = Host, DNSCustomEntity = DNSName, IPCustomEntity = IPAddresses
),
(VMConnection
| where RemoteDnsCanonicalNames has_any (domains)
| parse RemoteDnsCanonicalNames with * '["' DNSName '"]' *
| project TimeGenerated, Computer, Direction, RemoteDnsCanonicalNames, ProcessName, SourceIp, DestinationIp, DestinationPort, DNSName,BytesSent, BytesReceived, RemoteCountry, Type
| extend timestamp = TimeGenerated, IPCustomEntity = DestinationIp, HostCustomEntity = Computer, ProcessCustomEntity = ProcessName, DNSCustomEntity = DNSName
),
(Event
| where Source == "Microsoft-Windows-Sysmon"
| where EventID == 3
| extend EvData = parse_xml(EventData)
| extend EventDetail = EvData.DataItem.EventData.Data
| extend SourceIP = tostring(EventDetail.[9].["#text"]), DestinationIP = tostring(EventDetail.[14].["#text"]), Image = EventDetail.[4].["#text"]
| where Image has_any (file_path1) or Image has_any (file_path3)
| project TimeGenerated, SourceIP, DestinationIP, Image, UserName, Computer, EventDetail, Type
| extend timestamp = TimeGenerated, AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\', -1)[-1]), HostCustomEntity = Computer , IPCustomEntity = DestinationIP
),
(DeviceNetworkEvents
| where (RemoteUrl has_any (domains)) or (InitiatingProcessSHA256 in (sha256Hashes) and InitiatingProcessFolderPath has_any (file_path1)) or InitiatingProcessFolderPath has_any (file_path3)
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, RemoteIP, RemoteUrl, LocalIP, Type
| extend timestamp = TimeGenerated, IPCustomEntity = RemoteIP, HostCustomEntity = DeviceName, UrlCustomEntity =RemoteUrl
),
(AzureDiagnostics
| where ResourceType == "AZUREFIREWALLS"
| where Category == "AzureFirewallDnsProxy"
| project TimeGenerated,Resource, msg_s, Type
| parse msg_s with "DNS Request: " ClientIP ":" ClientPort " - " QueryID " " Request_Type " " Request_Class " " Request_Name ". " Request_Protocol " " Request_Size " " EDNSO_DO " " EDNS0_Buffersize " " Responce_Code " " Responce_Flags " " Responce_Size " " Response_Duration
| where Request_Name has_any (domains)
| extend timestamp = TimeGenerated, DNSName = Request_Name, IPCustomEntity = ClientIP
),
(AzureDiagnostics
| where ResourceType == "AZUREFIREWALLS"
| where Category == "AzureFirewallApplicationRule"
| project TimeGenerated,Resource, msg_s
| parse msg_s with Protocol 'request from ' SourceHost ':' SourcePort 'to ' DestinationHost ':' DestinationPort '. Action:' Action
| where DestinationHost has_any (domains)
| extend timestamp = TimeGenerated, DNSName = DestinationHost, IPCustomEntity = SourceHost
),
(AZFWDnsQuery
| where QueryName has_any (domains)
| extend timestamp = TimeGenerated, DNSName = QueryName, IPCustomEntity = SourceIp
),
(AZFWApplicationRule
| where Fqdn has_any (domains)
| extend timestamp = TimeGenerated, DNSName = Fqdn, IPCustomEntity = SourceIp
),
(Event
| where Source == "Microsoft-Windows-Sysmon"
| where EventID == 1
| extend EvData = parse_xml(EventData)
| extend EventDetail = EvData.DataItem.EventData.Data
| parse EventDetail with * 'SHA256=' SHA256 '",' *
| extend Image = EventDetail.[4].["#text"], CommandLine = EventDetail.[10].["#text"]
| where (SHA256 has_any (sha256Hashes) and Image has_any (file_path1)) or (Image has_any (file_path3)) or ( CommandLine has_any (file_path3)) or ( CommandLine has_any (file_path1)) or ( CommandLine has 'reg add' and CommandLine has_any (reg_key) and CommandLine has_any (file_path2))
| project TimeGenerated, EventDetail, UserName, Computer, Type, Source, SHA256, CommandLine, Image
| extend Type = strcat(Type, ": ", Source)
| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\', -1)[-1]), AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = SHA256
),
(DeviceRegistryEvents
| where RegistryKey has_any (reg_key) and RegistryValueData has_any (file_path2)
| 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
),
(DeviceProcessEvents
| where ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3)) or ( InitiatingProcessCommandLine has 'reg add' and InitiatingProcessCommandLine has_any (reg_key) and InitiatingProcessCommandLine has_any (file_path2)) or (InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3))
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, FolderPath, Type
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256
),
(DeviceFileEvents
| where (InitiatingProcessSHA256 has_any (sha256Hashes) and InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3)) or ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3))
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, RequestAccountName, RequestSourceIP, InitiatingProcessSHA256, FolderPath, Type
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = RequestAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256
),
(DeviceEvents
| where ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3)) or ( InitiatingProcessCommandLine has 'reg add' and InitiatingProcessCommandLine has_any (reg_key) and InitiatingProcessCommandLine has_any (file_path2)) or (InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3))
| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, FolderPath, Type
| extend CommandLine = InitiatingProcessCommandLine
| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = "SHA256", FileHashCustomEntity = InitiatingProcessSHA256
),
( SecurityEvent
| where EventID == 4688
| where ( CommandLine has_any (file_path1)) or ( CommandLine has_any (file_path3)) or ( CommandLine has 'reg add' and CommandLine has_any (reg_key) and CommandLine has_any (file_path2)) or (NewProcessName has_any (file_path1)) or (NewProcessName has_any (file_path3)) or (ParentProcessName has_any (file_path1)) or (ParentProcessName has_any (file_path3))
| project TimeGenerated, Computer, NewProcessName, ParentProcessName, Account, NewProcessId, Type
| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = Account, ProcessCustomEntity = NewProcessName
)
)
tags:
- SOURGUM
triggerOperator: gt
id: 94749332-1ad9-49dd-a5ab-5ff2170788fc
description: |
'Identifies a match across IOC's related to an actor tracked by Microsoft as SOURGUM'
triggerThreshold: 0
name: SOURGUM Actor IOC - July 2021
relevantTechniques:
- T1546
tactics:
- Persistence
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Analytic Rules/SOURGUM_IOC.yaml
{
"$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/94749332-1ad9-49dd-a5ab-5ff2170788fc')]",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/94749332-1ad9-49dd-a5ab-5ff2170788fc')]",
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
"kind": "Scheduled",
"apiVersion": "2022-11-01",
"properties": {
"displayName": "SOURGUM Actor IOC - July 2021",
"description": "'Identifies a match across IOC's related to an actor tracked by Microsoft as SOURGUM'\n",
"severity": "High",
"enabled": true,
"query": "let iocs = externaldata(DateAdded:string,IoC:string,Type:string,TLP:string) [@\"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/SOURGUM.csv\"] with (format=\"csv\", ignoreFirstRecord=True);\nlet domains = (iocs | where Type =~ \"domainname\"| project IoC);\nlet sha256Hashes = (iocs | where Type =~ \"sha256\" | project IoC);\nlet file_path1 = (iocs | where Type =~ \"filepath1\" | project IoC);\nlet file_path2 = (iocs | where Type =~ \"filepath2\" | project IoC);\nlet file_path3 = (iocs | where Type =~ \"filepath3\" | project IoC);\nlet reg_key = (iocs | where Type =~ \"regkey\" | project IoC);\n(union isfuzzy=true\n(CommonSecurityLog\n| where DestinationHostName has_any (domains) or RequestURL has_any (domains) or Message has_any (domains)\n| parse Message with * '(' DNSName ')' *\n| project TimeGenerated, Message, SourceUserID, RequestURL, DestinationHostName, Type, SourceIP, DestinationIP, DNSName\n| extend timestamp = TimeGenerated, AccountCustomEntity = SourceUserID, UrlCustomEntity = RequestURL , IPCustomEntity = DestinationIP, DNSCustomEntity = DNSName\n),\n(DnsEvents\n| where Name in~ (domains)\n| project TimeGenerated, Computer, IPAddresses, Name, ClientIP, Type\n| extend DNSName = Name, Host = Computer\n| extend timestamp = TimeGenerated, HostCustomEntity = Host, DNSCustomEntity = DNSName, IPCustomEntity = IPAddresses\n),\n(VMConnection\n| where RemoteDnsCanonicalNames has_any (domains)\n| parse RemoteDnsCanonicalNames with * '[\"' DNSName '\"]' *\n| project TimeGenerated, Computer, Direction, RemoteDnsCanonicalNames, ProcessName, SourceIp, DestinationIp, DestinationPort, DNSName,BytesSent, BytesReceived, RemoteCountry, Type\n| extend timestamp = TimeGenerated, IPCustomEntity = DestinationIp, HostCustomEntity = Computer, ProcessCustomEntity = ProcessName, DNSCustomEntity = DNSName\n),\n(Event\n| where Source == \"Microsoft-Windows-Sysmon\"\n| where EventID == 3\n| extend EvData = parse_xml(EventData)\n| extend EventDetail = EvData.DataItem.EventData.Data\n| extend SourceIP = tostring(EventDetail.[9].[\"#text\"]), DestinationIP = tostring(EventDetail.[14].[\"#text\"]), Image = EventDetail.[4].[\"#text\"]\n| where Image has_any (file_path1) or Image has_any (file_path3)\n| project TimeGenerated, SourceIP, DestinationIP, Image, UserName, Computer, EventDetail, Type\n| extend timestamp = TimeGenerated, AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\\\', -1)[-1]), HostCustomEntity = Computer , IPCustomEntity = DestinationIP\n), \n(DeviceNetworkEvents\n| where (RemoteUrl has_any (domains)) or (InitiatingProcessSHA256 in (sha256Hashes) and InitiatingProcessFolderPath has_any (file_path1)) or InitiatingProcessFolderPath has_any (file_path3)\n| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, RemoteIP, RemoteUrl, LocalIP, Type\n| extend timestamp = TimeGenerated, IPCustomEntity = RemoteIP, HostCustomEntity = DeviceName, UrlCustomEntity =RemoteUrl\n),\n(AzureDiagnostics\n| where ResourceType == \"AZUREFIREWALLS\"\n| where Category == \"AzureFirewallDnsProxy\"\n| project TimeGenerated,Resource, msg_s, Type\n| parse msg_s with \"DNS Request: \" ClientIP \":\" ClientPort \" - \" QueryID \" \" Request_Type \" \" Request_Class \" \" Request_Name \". \" Request_Protocol \" \" Request_Size \" \" EDNSO_DO \" \" EDNS0_Buffersize \" \" Responce_Code \" \" Responce_Flags \" \" Responce_Size \" \" Response_Duration\n| where Request_Name has_any (domains)\n| extend timestamp = TimeGenerated, DNSName = Request_Name, IPCustomEntity = ClientIP\n),\n(AzureDiagnostics\n| where ResourceType == \"AZUREFIREWALLS\"\n| where Category == \"AzureFirewallApplicationRule\"\n| project TimeGenerated,Resource, msg_s\n| parse msg_s with Protocol 'request from ' SourceHost ':' SourcePort 'to ' DestinationHost ':' DestinationPort '. Action:' Action\n| where DestinationHost has_any (domains) \n| extend timestamp = TimeGenerated, DNSName = DestinationHost, IPCustomEntity = SourceHost\n),\n(AZFWDnsQuery\n| where QueryName has_any (domains)\n| extend timestamp = TimeGenerated, DNSName = QueryName, IPCustomEntity = SourceIp\n),\n(AZFWApplicationRule\n| where Fqdn has_any (domains)\n| extend timestamp = TimeGenerated, DNSName = Fqdn, IPCustomEntity = SourceIp\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| parse EventDetail with * 'SHA256=' SHA256 '\",' *\n| extend Image = EventDetail.[4].[\"#text\"], CommandLine = EventDetail.[10].[\"#text\"]\n| where (SHA256 has_any (sha256Hashes) and Image has_any (file_path1)) or (Image has_any (file_path3)) or ( CommandLine has_any (file_path3)) or ( CommandLine has_any (file_path1)) or ( CommandLine has 'reg add' and CommandLine has_any (reg_key) and CommandLine has_any (file_path2)) \n| project TimeGenerated, EventDetail, UserName, Computer, Type, Source, SHA256, CommandLine, Image\n| extend Type = strcat(Type, \": \", Source)\n| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = UserName, ProcessCustomEntity = tostring(split(Image, '\\\\', -1)[-1]), AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = SHA256\n),\n(DeviceRegistryEvents\n| where RegistryKey has_any (reg_key) and RegistryValueData has_any (file_path2)\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\n),\n(DeviceProcessEvents\n| where ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3)) or ( InitiatingProcessCommandLine has 'reg add' and InitiatingProcessCommandLine has_any (reg_key) and InitiatingProcessCommandLine has_any (file_path2)) or (InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3))\n| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, FolderPath, Type\n| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = InitiatingProcessSHA256\n),\n(DeviceFileEvents\n| where (InitiatingProcessSHA256 has_any (sha256Hashes) and InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3)) or ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3))\n| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, RequestAccountName, RequestSourceIP, InitiatingProcessSHA256, FolderPath, Type\n| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = RequestAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = InitiatingProcessSHA256\n),\n(DeviceEvents\n| where ( InitiatingProcessCommandLine has_any (file_path1)) or ( InitiatingProcessCommandLine has_any (file_path3)) or ( InitiatingProcessCommandLine has 'reg add' and InitiatingProcessCommandLine has_any (reg_key) and InitiatingProcessCommandLine has_any (file_path2)) or (InitiatingProcessFolderPath has_any (file_path1)) or (InitiatingProcessFolderPath has_any (file_path3)) or (FolderPath has_any (file_path1)) or (FolderPath has_any (file_path3))\n| project TimeGenerated, ActionType, DeviceId, DeviceName, InitiatingProcessAccountDomain, InitiatingProcessAccountName, InitiatingProcessCommandLine, InitiatingProcessFolderPath, InitiatingProcessId, InitiatingProcessParentFileName, InitiatingProcessFileName, InitiatingProcessSHA256, FolderPath, Type\n| extend CommandLine = InitiatingProcessCommandLine\n| extend timestamp = TimeGenerated, HostCustomEntity = DeviceName , AccountCustomEntity = InitiatingProcessAccountName, ProcessCustomEntity = InitiatingProcessFileName, AlgorithmCustomEntity = \"SHA256\", FileHashCustomEntity = InitiatingProcessSHA256\n),\n( SecurityEvent\n| where EventID == 4688\n| where ( CommandLine has_any (file_path1)) or ( CommandLine has_any (file_path3)) or ( CommandLine has 'reg add' and CommandLine has_any (reg_key) and CommandLine has_any (file_path2)) or (NewProcessName has_any (file_path1)) or (NewProcessName has_any (file_path3)) or (ParentProcessName has_any (file_path1)) or (ParentProcessName has_any (file_path3))\n| project TimeGenerated, Computer, NewProcessName, ParentProcessName, Account, NewProcessId, Type\n| extend timestamp = TimeGenerated, HostCustomEntity = Computer , AccountCustomEntity = Account, ProcessCustomEntity = NewProcessName\n)\n)\n",
"queryFrequency": "PT6H",
"queryPeriod": "PT6H",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0,
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"techniques": [
"T1546"
],
"alertRuleTemplateName": "94749332-1ad9-49dd-a5ab-5ff2170788fc",
"customDetails": null,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "AccountCustomEntity"
}
]
},
{
"entityType": "Host",
"fieldMappings": [
{
"identifier": "FullName",
"columnName": "HostCustomEntity"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"identifier": "Address",
"columnName": "IPCustomEntity"
}
]
},
{
"entityType": "Process",
"fieldMappings": [
{
"identifier": "ProcessId",
"columnName": "ProcessCustomEntity"
}
]
},
{
"entityType": "FileHash",
"fieldMappings": [
{
"identifier": "Algorithm",
"columnName": "AlgorithmCustomEntity"
},
{
"identifier": "Value",
"columnName": "FileHashCustomEntity"
}
]
}
],
"tags": [
"SOURGUM"
],
"status": "Available",
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Legacy IOC based Threat Protection/Analytic Rules/SOURGUM_IOC.yaml",
"templateVersion": "1.2.1"
}
}
]
}