Sigma Rules
809 rules found for "privilege-escalation"
Suspicious Modification Of Scheduled Tasks
Detects when an attacker tries to modify an already existing scheduled tasks to run from a suspicious location Attackers can create a simple looking task in order to avoid detection on creation as it's often the most focused on Instead they modify the task after creation to include their malicious payload
Scheduled Task Creation Via Schtasks.EXE
Detects the creation of scheduled tasks by user accounts via the "schtasks" utility.
Suspicious Scheduled Task Creation Involving Temp Folder
Detects the creation of scheduled tasks that involves a temporary folder and runs only once
Scheduled Task Creation with Curl and PowerShell Execution Combo
Detects the creation of a scheduled task using schtasks.exe, potentially in combination with curl for downloading payloads and PowerShell for executing them. This facilitates executing malicious payloads or connecting with C&C server persistently without dropping the malware sample on the host.
Schedule Task Creation From Env Variable Or Potentially Suspicious Path Via Schtasks.EXE
Detects Schtask creations that point to a suspicious folder or an environment variable often used by malware
Schtasks From Suspicious Folders
Detects scheduled task creations that have suspicious action command and folder combinations
Suspicious Scheduled Task Name As GUID
Detects creation of a scheduled task with a GUID like name
Uncommon One Time Only Scheduled Task At 00:00
Detects scheduled task creation events that include suspicious actions, and is run once at 00:00
Potential SSH Tunnel Persistence Install Using A Scheduled Task
Detects the creation of new scheduled tasks via commandline, using Schtasks.exe. This rule detects tasks creating that call OpenSSH, which may indicate the creation of reverse SSH tunnel to the attacker's server.
Potential Persistence Via Microsoft Compatibility Appraiser
Detects manual execution of the "Microsoft Compatibility Appraiser" task via schtasks. In order to trigger persistence stored in the "\AppCompatFlags\TelemetryController" registry key.
Potential Persistence Via Powershell Search Order Hijacking - Task
Detects suspicious powershell execution via a schedule task where the command ends with an suspicious flags to hide the powershell instance instead of executeing scripts or commands. This could be a sign of persistence via PowerShell "Get-Variable" technique as seen being used in Colibri Loader
Scheduled Task Executing Payload from Registry
Detects the creation of a schtasks that potentially executes a payload stored in the Windows Registry using PowerShell.
Scheduled Task Executing Encoded Payload from Registry
Detects the creation of a schtask that potentially executes a base64 encoded payload stored in the Windows Registry using PowerShell.
Suspicious Schtasks Schedule Types
Detects scheduled task creations or modification on a suspicious schedule type
Suspicious Schtasks Schedule Type With High Privileges
Detects scheduled task creations or modification to be run with high privileges on a suspicious schedule type
Suspicious Scheduled Task Creation via Masqueraded XML File
Detects the creation of a scheduled task using the "-XML" flag with a file without the '.xml' extension. This behavior could be indicative of potential defense evasion attempt during persistence
Suspicious Command Patterns In Scheduled Task Creation
Detects scheduled task creation using "schtasks" that contain potentially suspicious or uncommon commands
Schtasks Creation Or Modification With SYSTEM Privileges
Detects the creation or update of a scheduled task to run with "NT AUTHORITY\SYSTEM" privileges
Scheduled Task Creation Masquerading as System Processes
Detects the creation of scheduled tasks that involve system processes, which may indicate malicious actors masquerading as or abusing these processes to execute payloads or maintain persistence.
Possible Privilege Escalation via Weak Service Permissions
Detection of sc.exe utility spawning by user with Medium integrity level to change service ImagePath or FailureCommand
New Service Creation Using Sc.EXE
Detects the creation of a new service using the "sc.exe" utility.
New Kernel Driver Via SC.EXE
Detects creation of a new service (kernel driver) with the type "kernel"
Allow Service Access Using Security Descriptor Tampering Via Sc.EXE
Detects suspicious DACL modifications to allow access to a service from a suspicious trustee. This can be used to override access restrictions set by previous ACLs.
Deny Service Access Using Security Descriptor Tampering Via Sc.EXE
Detects suspicious DACL modifications to deny access to a service that affects critical trustees. This can be used to hide services or make them unstoppable.
Service DACL Abuse To Hide Services Via Sc.EXE
Detects usage of the "sc.exe" utility adding a new service with special permission seen used by threat actors which makes the service hidden and unremovable.
Service Security Descriptor Tampering Via Sc.EXE
Detection of sc.exe utility adding a new service with special permission which hides that service.
Suspicious Service Path Modification
Detects service path modification via the "sc" binary to a suspicious command or path
Potential Persistence Attempt Via Existing Service Tampering
Detects the modification of an existing service in order to execute an arbitrary payload when the service is started or killed as a potential method for persistence.
Potential Shim Database Persistence via Sdbinst.EXE
Detects installation of a new shim using sdbinst.exe. Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by application shims
Uncommon Extension Shim Database Installation Via Sdbinst.EXE
Detects installation of a potentially suspicious new shim with an uncommon extension using sdbinst.exe. Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by application shims
Sdclt Child Processes
A General detection for sdclt spawning new processes. This could be an indicator of sdclt being used for bypass UAC techniques.
Potential Suspicious Activity Using SeCEdit
Detects potential suspicious behaviour using secedit.exe. Such as exporting or modifying the security policy
Potential SPN Enumeration Via Setspn.EXE
Detects service principal name (SPN) enumeration used for Kerberoasting
Setup16.EXE Execution With Custom .Lst File
Detects the execution of "Setup16.EXE" and old installation utility with a custom ".lst" file. These ".lst" file can contain references to external program that "Setup16.EXE" will execute. Attackers and adversaries might leverage this as a living of the land utility.
Suspicious Spool Service Child Process
Detects suspicious print spool service (spoolsv.exe) child processes.
Port Forwarding Activity Via SSH.EXE
Detects port forwarding activity via SSH.exe
Potential RDP Tunneling Via SSH
Execution of ssh.exe to perform data exfiltration and tunneling through RDP
Abused Debug Privilege by Arbitrary Parent Processes
Detection of unusual child processes by different system processes
User Added to Local Administrators Group
Detects addition of users to the local administrator group via "Net" or "Add-LocalGroupMember".
User Added To Highly Privileged Group
Detects addition of users to highly privileged groups via "Net" or "Add-LocalGroupMember".
Always Install Elevated Windows Installer
Detects Windows Installer service (msiexec.exe) trying to install MSI packages with SYSTEM privilege
Suspicious Child Process Created as System
Detection of child processes spawned with SYSTEM privileges by parents with LOCAL SERVICE or NETWORK SERVICE accounts
Always Install Elevated MSI Spawned Cmd And Powershell
Detects Windows Installer service (msiexec.exe) spawning "cmd" or "powershell"
Elevated System Shell Spawned From Uncommon Parent Location
Detects when a shell program such as the Windows command prompt or PowerShell is launched with system privileges from a uncommon parent location.
Potentially Suspicious JWT Token Search Via CLI
Detects potentially suspicious search for JWT tokens via CLI by looking for the string "eyJ0eX" or "eyJhbG". JWT tokens are often used for access-tokens across various applications and services like Microsoft 365, Azure, AWS, Google Cloud, and others. Threat actors may search for these tokens to steal them for lateral movement or privilege escalation.
Non-privileged Usage of Reg or Powershell
Search for usage of reg or Powershell by non-privileged users to modify service configuration in registry
Suspicious RunAs-Like Flag Combination
Detects suspicious command line flags that let the user set a target user and command as e.g. seen in PsExec-like tools
Privilege Escalation via Named Pipe Impersonation
Detects a remote file copy attempt to a hidden network share. This may indicate lateral movement or data staging activity.