Every published rule
Every rule shows the reporting behind it, the telemetry it needs and where it falls short — before it costs you anything.
117 rules
Linux Docker Container Discovery via .dockerenv File Listing or Reads
Detects Linux process executions using common utilities to read or list .dockerenv, indicating potential container environment discovery.
sigmaLinuxlow2023-08-23Linux Container Discovery via /proc Virtual Filesystem Probing with CLI Text Tools
Flags Linux process executions using standard text tools to enumerate /proc for container-related discovery signals.
sigmaLinuxlow2023-08-23Windows: Detect Cmd.exe Redirection of Discovery Commands by Ursnif
Flags explorer-launched cmd.exe commands that use /C and redirect output to AppData local temp .bin files.
sigmahigh2023-07-16Linux grep file discovery targeting GobRAT-specific filenames
Alerts on grep executions on Linux whose arguments contain specific malware-related file names for discovery.
sigmaLinuxhigh2023-06-02Linux OS Architecture Discovery Using grep
Flags grep executions on Linux whose command line ends with known CPU/architecture identifiers.
sigmaLinuxlow2023-06-02Windows Devil Bait-like Recon via Wscript/Cmd with APPDATA Redirection
Flags cmd.exe launched by wscript.exe to redirect discovery output into %APPDATA%\Microsoft (.xml/.txt) using system enumeration commands.
sigmahigh2023-05-15Windows Process Creation: Crassus Privilege Escalation Discovery Tool Execution
Identifies execution of the Crassus Windows privilege escalation discovery tool via process metadata.
sigmaWindowshigh2023-04-17Windows: Detect csvde.exe Active Directory export to CSV
Flags csvde.exe executions on Windows that include -f, consistent with exporting Active Directory data for discovery.
sigmaWindowsmedium2023-03-14Suspicious Windows Process Execution of gatherNetworkInfo.vbs via Cscript/Wscript
Alerts on Windows executions referencing gatherNetworkInfo.vbs in process command lines, indicative of potential discovery activity.
sigmaWindowshigh2023-02-08Windows nltest.exe Execution for Network Information Discovery
Flags execution of nltest.exe (including nltestrk.exe via OriginalFileName) used for network and domain information discovery.
sigmaWindowslow2023-02-03Windows WMIC System Information Discovery via WMIC.EXE Recon
Flags WMIC.EXE executions running system info queries for OS and disk details.
sigmaWindowsmedium2023-01-26Windows PowerShell AD Module DLL Import for Active Directory Enumeration
Flags PowerShell importing Microsoft.ActiveDirectory.Management.dll via Import-Module, a common step in AD discovery and enumeration.
sigmaWindowsmedium2023-01-22AWS CloudTrail: Potential S3 Bucket Enumeration via ListBuckets by Non-AssumedRole
Identifies S3 ListBuckets calls in CloudTrail that are not from assumed-role identities, which may indicate bucket discovery activity.
sigmaCloudlow2023-01-06macOS Process Creation: Suspicious find Usage for Permission/Setuid Discovery
Alerts on macOS executions of /find containing permission enumeration flags for setuid/setgid and writable/executable files.
sigmamacOSmedium2022-12-28Linux find Command Used to Discover SUID/SGID and World-Writable Files
Alerts on Linux usage of /find with setuid/sgid and permissive permission filters, consistent with discovery activity.
sigmaLinuxmedium2022-12-28Linux Privilege Capability Discovery via getcap
Flags Linux executions of /getcap with -r to recursively enumerate file capabilities during discovery.
sigmaLinuxlow2022-12-28Azure sign-in logs: Detect AzureHound discovery tool via default User-Agent
Flags successful Azure sign-ins where the User-Agent contains "azurehound", indicating AzureHound discovery.
sigmaCloudhigh2022-11-27PowerShell Get-ADUser User Discovery and Data Export via File Output
Detects PowerShell Get-ADUser-based user enumeration combined with exporting results to files or output streams.
sigmaWindowsmedium2022-11-17PowerShell Get-ADComputer Cmdlet Used for Computer Discovery and File Export
Flags PowerShell Get-ADComputer wildcard enumeration followed by writing exported computer data to a file.
sigmaWindowsmedium2022-11-17Windows Process Creation: Seatbelt.exe PUA Discovery Command-Line Execution
Alerts on Windows process launches of Seatbelt.exe with discovery group arguments and outputfile usage.
sigmaWindowshigh2022-10-18