- Elastic Security: other versions:
- Elastic Security overview
- What’s new
- Get started with Elastic Security
- Elastic Security UI
- Anomaly Detection with Machine Learning
- Detections and alerts
- Create a detection rule
- Manage detection rules
- Monitor and troubleshoot rule executions
- Rule exceptions and value lists
- About building-block rules
- Managing detection alerts
- Visual event analyzer
- Tune detection rules
- Prebuilt rule changes per release
- Prebuilt rule reference
- AWS Access Secret in Secrets Manager
- AWS CloudTrail Log Created
- AWS CloudTrail Log Deleted
- AWS CloudTrail Log Suspended
- AWS CloudTrail Log Updated
- AWS CloudWatch Alarm Deletion
- AWS CloudWatch Log Group Deletion
- AWS CloudWatch Log Stream Deletion
- AWS Config Service Tampering
- AWS Configuration Recorder Stopped
- AWS EC2 Encryption Disabled
- AWS EC2 Flow Log Deletion
- AWS EC2 Network Access Control List Creation
- AWS EC2 Network Access Control List Deletion
- AWS EC2 Snapshot Activity
- AWS Execution via System Manager
- AWS GuardDuty Detector Deletion
- AWS IAM Assume Role Policy Update
- AWS IAM Brute Force of Assume Role Policy
- AWS IAM Deactivation of MFA Device
- AWS IAM Group Creation
- AWS IAM Group Deletion
- AWS IAM Password Recovery Requested
- AWS IAM User Addition to Group
- AWS Management Console Brute Force of Root User Identity
- AWS Management Console Root Login
- AWS RDS Cluster Creation
- AWS RDS Cluster Deletion
- AWS RDS Instance/Cluster Stoppage
- AWS Root Login Without MFA
- AWS S3 Bucket Configuration Deletion
- AWS WAF Access Control List Deletion
- AWS WAF Rule or Rule Group Deletion
- Abnormally Large DNS Response
- Access of Stored Browser Credentials
- Access to Keychain Credentials Directories
- AdFind Command Activity
- Adding Hidden File Attribute via Attrib
- Administrator Privileges Assigned to an Okta Group
- Administrator Role Assigned to an Okta User
- Adobe Hijack Persistence
- Adversary Behavior - Detected - Elastic Endgame
- Anomalous Kernel Module Activity
- Anomalous Linux Compiler Activity
- Anomalous Process For a Linux Population
- Anomalous Process For a Windows Population
- Anomalous Windows Process Creation
- Apple Script Execution followed by Network Connection
- Apple Scripting Execution with Administrator Privileges
- Application Added to Google Workspace Domain
- Dumping Account Hashes via Built-In Commands
- Dumping of Keychain Content via Security Command
- EggShell Backdoor Execution
- Emond Rules Creation or Modification
- Encoded Executable Stored in the Registry
- Encoding or Decoding Files via CertUtil
- Encrypting Files with WinRar or 7z
- Endpoint Security
- Enumeration Command Spawned via WMIPrvSE
- Enumeration of Administrator Accounts
- Enumeration of Kernel Modules
- Enumeration of Users or Groups via Built-in Commands
- Executable File Creation with Multiple Extensions
- Execution from Unusual Directory - Command Line
- Execution of COM object via Xwizard
- Execution of File Written or Modified by Microsoft Office
- Execution of File Written or Modified by PDF Reader
- Execution of Persistent Suspicious Program
- Execution via Electron Child Process Node.js Module
- Execution via MSSQL xp_cmdshell Stored Procedure
- Execution via Regsvcs/Regasm
- Execution via TSClient Mountpoint
- Execution via local SxS Shared Module
- Execution with Explicit Credentials via Scripting
- Exploit - Detected - Elastic Endgame
- Exploit - Prevented - Elastic Endgame
- Exporting Exchange Mailbox via PowerShell
- External Alerts
- FTP (File Transfer Protocol) Activity to the Internet
- File Deletion via Shred
- File Permission Modification in Writable Directory
- File and Directory Discovery
- Finder Sync Plugin Registered and Enabled
- GCP Firewall Rule Creation
- GCP Firewall Rule Deletion
- GCP Firewall Rule Modification
- GCP IAM Custom Role Creation
- GCP IAM Role Deletion
- GCP IAM Service Account Key Deletion
- GCP Logging Bucket Deletion
- GCP Logging Sink Deletion
- GCP Logging Sink Modification
- GCP Pub/Sub Subscription Creation
- GCP Pub/Sub Subscription Deletion
- GCP Pub/Sub Topic Creation
- GCP Pub/Sub Topic Deletion
- GCP Service Account Creation
- GCP Service Account Deletion
- GCP Service Account Disabled
- GCP Service Account Key Creation
- GCP Storage Bucket Configuration Modification
- GCP Storage Bucket Deletion
- GCP Storage Bucket Permissions Modification
- GCP Virtual Private Cloud Network Deletion
- GCP Virtual Private Cloud Route Creation
- GCP Virtual Private Cloud Route Deletion
- Google Workspace API Access Granted via Domain-Wide Delegation of Authority
- Google Workspace Admin Role Deletion
- Google Workspace MFA Enforcement Disabled
- Google Workspace Role Modified
- Malware - Detected - Elastic Endgame
- Malware - Prevented - Elastic Endgame
- Microsoft 365 Exchange Anti-Phish Policy Deletion
- Microsoft 365 Exchange Anti-Phish Rule Modification
- Microsoft 365 Exchange DKIM Signing Configuration Disabled
- Microsoft 365 Exchange DLP Policy Removed
- Microsoft 365 Exchange Malware Filter Policy Deletion
- Microsoft 365 Exchange Malware Filter Rule Modification
- Microsoft 365 Exchange Management Group Role Assignment
- Microsoft 365 Exchange Safe Attachment Rule Disabled
- Microsoft 365 Exchange Safe Link Policy Disabled
- Microsoft 365 Exchange Transport Rule Creation
- Microsoft 365 Exchange Transport Rule Modification
- Microsoft 365 Teams Custom Application Interaction Allowed
- Microsoft 365 Teams External Access Enabled
- Microsoft 365 Teams Guest Access Enabled
- Microsoft Build Engine Loading Windows Credential Libraries
- Microsoft Build Engine Started an Unusual Process
- Microsoft Build Engine Started by a Script Process
- Microsoft Build Engine Started by a System Process
- Microsoft Build Engine Started by an Office Application
- Microsoft Build Engine Using an Alternate Name
- Microsoft Exchange Server UM Spawning Suspicious Processes
- Microsoft Exchange Server UM Writing Suspicious Files
- Microsoft Exchange Worker Spawning Suspicious Processes
- Microsoft IIS Connection Strings Decryption
- Microsoft IIS Service Account Password Dumped
- Mimikatz Memssp Log File Detected
- Mknod Process Activity
- Modification of Boot Configuration
- Modification of Dynamic Linker Preload Shared Object
- Modification of Environment Variable via Launchctl
- Modification of OpenSSH Binaries
- Modification of Safari Settings via Defaults Command
- Modification of Standard Authentication Module or Configuration
- Modification of WDigest Security Provider
- Modification or Removal of an Okta Application Sign-On Policy
- Mounting Hidden or WebDav Remote Shares
- MsBuild Making Network Connections
- Mshta Making Network Connections
- Multi-Factor Authentication Disabled for an Azure User
- NTDS or SAM Database File Copied
- Net command via SYSTEM account
- Netcat Network Activity
- Network Connection via Certutil
- Network Connection via Compiled HTML File
- Network Connection via MsXsl
- Network Connection via Registration Utility
- Network Connection via Signed Binary
- Network Sniffing via Tcpdump
- New ActiveSyncAllowedDeviceID Added via PowerShell
- Nmap Process Activity
- Nping Process Activity
- Okta Brute Force or Password Spraying Attack
- Outbound Scheduled Task Activity via PowerShell
- PPTP (Point to Point Tunneling Protocol) Activity
- Peripheral Device Discovery
- Permission Theft - Detected - Elastic Endgame
- Permission Theft - Prevented - Elastic Endgame
- Persistence via DirectoryService Plugin Modification
- Persistence via Docker Shortcut Modification
- Persistence via Folder Action Script
- Persistence via Hidden Run Key Detected
- Persistence via KDE AutoStart Script or Desktop File Modification
- Persistence via Kernel Module Modification
- Persistence via Login or Logout Hook
- Persistence via Microsoft Office AddIns
- Persistence via Microsoft Outlook VBA
- Persistence via TelemetryController Scheduled Task Hijack
- Persistence via Update Orchestrator Service Hijack
- Persistence via WMI Event Subscription
- Persistent Scripts in the Startup Directory
- Port Forwarding Rule Addition
- Possible Consent Grant Attack via Azure-Registered Application
- Possible FIN7 DGA Command and Control Behavior
- Possible Okta DoS Attack
- Potential Admin Group Account Addition
- Potential Application Shimming via Sdbinst
- Potential Command and Control via Internet Explorer
- Potential Cookies Theft via Browser Debugging
- Potential Credential Access via Windows Utilities
- Potential DLL SideLoading via Trusted Microsoft Programs
- Potential DNS Tunneling via Iodine
- Potential DNS Tunneling via NsLookup
- Potential Disabling of SELinux
- Potential Evasion via Filter Manager
- Potential Hidden Local User Account Creation
- Potential Kerberos Attack via Bifrost
- Potential LSA Authentication Package Abuse
- Potential Microsoft Office Sandbox Evasion
- Potential Modification of Accessibility Binaries
- Potential OpenSSH Backdoor Logging Activity
- Potential Password Spraying of Microsoft 365 User Accounts
- Potential Persistence via Atom Init Script Modification
- Potential Persistence via Cron Job
- Potential Persistence via Login Hook
- Potential Persistence via Periodic Tasks
- Potential Persistence via Time Provider Modification
- Potential Port Monitor or Print Processor Registration Abuse
- Potential Privacy Control Bypass via Localhost Secure Copy
- Potential Privacy Control Bypass via TCCDB Modification
- Potential Privilege Escalation via Sudoers File Modification
- Potential Process Herpaderping Attempt
- Potential Remote Desktop Tunneling Detected
- Potential Reverse Shell Activity via Terminal
- Potential SSH Brute Force Detected
- Potential Secure File Deletion via SDelete Utility
- Potential SharpRDP Behavior
- Potential Shell via Web Server
- Potential Windows Error Manager Masquerading
- PowerShell spawning Cmd
- Privilege Escalation via Named Pipe Impersonation
- Privilege Escalation via Root Crontab File Modification
- Privilege Escalation via Windir Environment Variable
- Process Activity via Compiled HTML File
- Process Discovery via Tasklist
- Process Execution from an Unusual Directory
- Process Injection - Detected - Elastic Endgame
- Process Injection - Prevented - Elastic Endgame
- Process Injection by the Microsoft Build Engine
- Process Termination followed by Deletion
- Program Files Directory Masquerading
- Prompt for Credentials with OSASCRIPT
- Proxy Port Activity to the Internet
- PsExec Network Connection
- Public IP Reconnaissance Activity
- Query Registry via reg.exe
- RDP (Remote Desktop Protocol) from the Internet
- RDP (Remote Desktop Protocol) to the Internet
- RDP Enabled via Registry
- RPC (Remote Procedure Call) from the Internet
- RPC (Remote Procedure Call) to the Internet
- Ransomware - Detected - Elastic Endgame
- Ransomware - Prevented - Elastic Endgame
- Rare AWS Error Code
- Registry Persistence via AppCert DLL
- Registry Persistence via AppInit DLL
- Remote Desktop Enabled in Windows Firewall
- Remote Execution via File Shares
- Remote File Copy to a Hidden Share
- Remote File Copy via TeamViewer
- Remote File Download via Desktopimgdownldr Utility
- Remote File Download via MpCmdRun
- Remote File Download via PowerShell
- Remote File Download via Script Interpreter
- Remote SSH Login Enabled via systemsetup Command
- Remote Scheduled Task Creation
- Remote System Discovery Commands
- Remotely Started Services via RPC
- Renamed AutoIt Scripts Interpreter
- Roshal Archive (RAR) or PowerShell File Downloaded from the Internet
- SIP Provider Modification
- SMB (Windows File Sharing) Activity to the Internet
- SMTP on Port 26/TCP
- SMTP to the Internet
- SQL Traffic to the Internet
- SSH (Secure Shell) from the Internet
- SSH (Secure Shell) to the Internet
- SSH Authorized Keys File Modification
- SUNBURST Command and Control Activity
- Scheduled Task Created by a Windows Script
- Scheduled Tasks AT Command Enabled
- Searching for Saved Credentials via VaultCmd
- Security Software Discovery using WMIC
- Security Software Discovery via Grep
- Sensitive Files Compression
- Service Command Lateral Movement
- Setuid / Setgid Bit Set via chmod
- Shell Execution via Apple Scripting
- Shortcut File Written or Modified for Persistence
- Socat Process Activity
- SoftwareUpdate Preferences Modification
- SolarWinds Process Disabling Services via Registry
- Spike in AWS Error Messages
- Startup Folder Persistence via Unsigned Process
- Startup or Run Key Registry Modification
- Strace Process Activity
- Sublime Plugin or Application Script Modification
- Sudo Heap-Based Buffer Overflow Attempt
- Sudoers File Modification
- Suspicious .NET Code Compilation
- Suspicious Activity Reported by Okta User
- Suspicious Automator Workflows Execution
- Suspicious Browser Child Process
- Suspicious Calendar File Modification
- Suspicious Child Process of Adobe Acrobat Reader Update Service
- Suspicious Cmd Execution via WMI
- Suspicious DLL Loaded for Persistence or Privilege Escalation
- Suspicious Emond Child Process
- Suspicious Endpoint Security Parent Process
- Suspicious Execution - Short Program Name
- Suspicious Execution via Scheduled Task
- Suspicious Explorer Child Process
- Suspicious Hidden Child Process of Launchd
- Suspicious Image Load (taskschd.dll) from MS Office
- Suspicious ImagePath Service Creation
- Suspicious JAR Child Process
- Suspicious MS Office Child Process
- Suspicious MS Outlook Child Process
- Suspicious Managed Code Hosting Process
- Suspicious PDF Reader Child Process
- Suspicious PowerShell Engine ImageLoad
- Suspicious Powershell Script
- Suspicious Print Spooler Point and Print DLL
- Suspicious PrintSpooler SPL File Created
- Suspicious PrintSpooler Service Executable File Creation
- Suspicious Process Execution via Renamed PsExec Executable
- Suspicious Process from Conhost
- Suspicious RDP ActiveX Client Loaded
- Suspicious SolarWinds Child Process
- Suspicious WMI Image Load from MS Office
- Suspicious WMIC XSL Script Execution
- Suspicious WerFault Child Process
- Suspicious Zoom Child Process
- Suspicious macOS MS Office Child Process
- Svchost spawning Cmd
- System Log File Deletion
- System Shells via Services
- SystemKey Access via Command Line
- TCC Bypass via Mounted APFS Snapshot Access
- TCP Port 8000 Activity to the Internet
- Tampering of Bash Command-Line History
- Telnet Port Activity
- Threat Detected by Okta ThreatInsight
- Timestomping using Touch Command
- Tor Activity to the Internet
- Trusted Developer Application Usage
- UAC Bypass Attempt via Elevated COM Internet Explorer Add-On Installer
- UAC Bypass Attempt via Privileged IFileOperation COM Interface
- UAC Bypass Attempt via Windows Directory Masquerading
- UAC Bypass Attempt with IEditionUpgradeManager Elevated COM Interface
- UAC Bypass via DiskCleanup Scheduled Task Hijack
- UAC Bypass via ICMLuaUtil Elevated COM Interface
- UAC Bypass via Windows Firewall Snap-In Hijack
- Uncommon Registry Persistence Change
- Unusual AWS Command for a User
- Unusual Child Process from a System Virtual Process
- Unusual Child Process of dns.exe
- Unusual Child Processes of RunDLL32
- Unusual City For an AWS Command
- Unusual Country For an AWS Command
- Unusual DNS Activity
- Unusual Executable File Creation by a System Critical Process
- Unusual File Creation - Alternate Data Stream
- Unusual File Modification by dns.exe
- Unusual Linux Network Activity
- Unusual Linux Network Connection Discovery
- Unusual Linux Network Port Activity
- Unusual Linux Network Service
- Unusual Linux Process Calling the Metadata Service
- Unusual Linux Process Discovery Activity
- Unusual Linux System Information Discovery Activity
- Unusual Linux System Network Configuration Discovery
- Unusual Linux System Owner or User Discovery Activity
- Unusual Linux User Calling the Metadata Service
- Unusual Linux Username
- Unusual Linux Web Activity
- Unusual Login Activity
- Unusual Network Activity from a Windows System Binary
- Unusual Network Connection via RunDLL32
- Unusual Network Destination Domain Name
- Unusual Parent Process for cmd.exe
- Unusual Parent-Child Relationship
- Unusual Persistence via Services Registry
- Unusual Process Execution - Temp
- Unusual Process Execution Path - Alternate Data Stream
- Unusual Process For a Linux Host
- Unusual Process For a Windows Host
- Unusual Process Network Connection
- Unusual Service Host Child Process - Childless Service
- Unusual Sudo Activity
- Unusual Web Request
- Unusual Web User Agent
- Unusual Windows Network Activity
- Unusual Windows Path Activity
- Unusual Windows Process Calling the Metadata Service
- Unusual Windows Remote User
- Unusual Windows Service
- Unusual Windows User Calling the Metadata Service
- Unusual Windows User Privilege Elevation Activity
- Unusual Windows Username
- User Account Creation
- User Added as Owner for Azure Application
- User Added as Owner for Azure Service Principal
- User Added to Privileged Group in Active Directory
- User Discovery via Whoami
- VNC (Virtual Network Computing) from the Internet
- VNC (Virtual Network Computing) to the Internet
- Virtual Machine Fingerprinting
- Virtual Private Network Connection Attempt
- Volume Shadow Copy Deletion via VssAdmin
- Volume Shadow Copy Deletion via WMIC
- WMI Incoming Lateral Movement
- Web Application Suspicious Activity: No User Agent
- Web Application Suspicious Activity: POST Request Declined
- Web Application Suspicious Activity: Unauthorized Method
- Web Application Suspicious Activity: sqlmap User Agent
- WebProxy Settings Modification
- WebServer Access Logs Deleted
- Whoami Process Activity
- Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601 - CurveBall)
- Windows Defender Disabled via Registry Modification
- Windows Event Logs Cleared
- Windows Network Enumeration
- Windows Script Executing PowerShell
- Windows Script Interpreter Executing Process via WMI
- Windows Suspicious Script Object Execution
- Zoom Meeting with no Passcode
- macOS Installer Spawns Network Event
- Investigate events
- Cases
- Elastic Security APIs
- Detections API
- Exceptions API
- Lists API
- Detection Alerts Migration API
- Timeline API
- Cases API
- Create case
- Add comment
- Update case
- Update comment
- Find cases
- Get case
- Get all case comments
- Get comment
- Get all case activity
- Get tags
- Get reporters
- Get status
- Delete comment
- Delete all comments
- Delete case
- Set default Elastic Security UI connector
- Update case configurations
- Get current connector
- Find connectors
- Push case
- Add external details to case
- Actions API (for pushing cases to external systems)
- Elastic Security fields and object schemas
- Enable process analyzer after an upgrade
- Release Notes
IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Net command via SYSTEM account
edit
IMPORTANT: This documentation is no longer updated. Refer to Elastic's version policy and the latest documentation.
Net command via SYSTEM account
editIdentifies the SYSTEM account using the Net utility. The Net utility is a component of the Windows operating system. It is used in command line operations for control of users, groups, services, and network connections.
Rule type: query
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Discovery
Version: 6 (version history)
Added (Elastic Stack release): 7.7.0
Last modified (Elastic Stack release): 7.12.0
Rule authors: Elastic
Rule license: Elastic License v2
Rule query
editevent.category:process and event.type:(start or process_started) and (process.name:(whoami.exe or net.exe) or process.name:net1.exe and not process.parent.name:net.exe) and user.name:SYSTEM
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Account Discovery
- ID: T1087
- Reference URL: https://attack.mitre.org/techniques/T1087/
Rule version history
edit- Version 6 (7.12.0 release)
-
- Formatting only
- Version 5 (7.11.2 release)
-
- Formatting only
- Version 4 (7.10.0 release)
-
-
Updated query, changed from:
event.category:process and event.type:(start or process_started) and (process.name:net.exe or process.name:net1.exe and not process.parent.name:net.exe) and user.name:SYSTEM
-
- Version 3 (7.9.1 release)
-
- Formatting only
- Version 2 (7.9.0 release)
-
-
Updated query, changed from:
(process.name:net.exe or process.name:net1.exe and not process.parent.name:net.exe) and user.name:SYSTEM and event.action:"Process Create (rule: ProcessCreate)"
-
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