Sigma detection rules, expert-reviewed
Each one is checked against the reporting it came from before it is published, and shows the ATT&CK technique it covers, the telemetry it needs and where it falls short.
3,607 rules
Windows File Creation by VS Code Tunnel node.exe in .vscode-server History
Alerts on node.exe creating files under .vscode-server User History when the process runs from a VS Code server tunnel path.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventMedium142Free2023-10-25Windows DNS Queries to Visual Studio Code Tunnel Domains
Alerts on Windows DNS queries to .tunnels.api.visualstudio.com, matching Visual Studio Code tunnel endpoints.
citron_ninja, Huntrule TeamWindowsdns_queryMedium179Free2023-10-25Windows DNS Queries to Devtunnels .devtunnels.ms Domains
Alerts on Windows DNS queries for .devtunnels.ms domains, which may indicate DevTunnels-based C2 or persistence.
citron_ninja, Huntrule TeamWindowsdns_queryMedium112Free2023-10-25Okta New User Created via user.lifecycle.create Event
Flags Okta events indicating new user account creation via user.lifecycle.create.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamOktaoktaInformational80Free2023-10-25Okta admin function access via proxy (requestUri contains admin and isProxy enabled)
Flags Okta requests targeting admin URIs when the event indicates the traffic is proxied.
Muhammad Faisal @faisalusuf, Huntrule TeamOktaoktaMedium395Free2023-10-25Windows: Detect creation of code_tunnel.json indicating VS Code tunneling utility use
Alerts on Windows file creation of code_tunnel.json, indicating VS Code tunneling may be active.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventMedium60Free2023-10-25Okta: Access to /reports/password-health endpoint outside expected Admin Console use
Flags requests to Okta Password Health report endpoints (/reports/password-health/*) for threat hunting.
Muhammad Faisal (@faisalusuf), Huntrule TeamOktaoktaLow70Free2023-10-25Okta: Detect new or activated user accounts named svc_network_backup
Alerts on Okta account creation or activation events for target display names containing svc_network_backup.
Muhammad Faisal (@faisalusuf), Huntrule TeamOktaoktaMedium327Free2023-10-25Windows File Creation: inetmgr.exe in \Windows\ADFS\bg\ Path
Alerts on creation of \Windows\ADFS\bg\inetmgr.exe in Windows file events.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventHigh386Free2023-10-24Windows Security Event 4698 Scheduled Task Creation for TeamCity UI
Flags Windows scheduled task creation events where the task name is TeamCity Settings UI and content contains a specific marker.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowssecurityCritical281Free2023-10-24Windows Registry Events: Scheduled Task Creation via TaskCache Tree Key
Flags registry activity creating TaskCache Tree entries tied to TeamCity settings UI during exploitation.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsregistry_eventHigh162Free2023-10-24Windows Process Creation Command-Line Indicator Matching 'uTYNkfKxHiZrx3KJ'
Triggers on Windows process creation events with command line containing 'uTYNkfKxHiZrx3KJ'.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsprocess_creationHigh103Free2023-10-24Windows DLL Side-Loading via ProgramData Image Load Indicators (clip.exe and wsmprovhost.exe)
Flags ProgramData clip.exe or wsmprovhost.exe launching with suspicious DLL loads from ProgramData.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsimage_loadHigh83Free2023-10-24Windows File Creation Indicators Linked to Diamond Sleet Artifacts
Flags Windows file creations under \ProgramData matching specific payload component filename indicators.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsfile_eventHigh71Free2023-10-24Windows DNS queries containing Diamond Sleet–related domains
Alerts on Windows DNS queries for QueryName values containing specific Diamond Sleet–related domains.
Nasreddine Bencherchali (Nextron Systems), Huntrule TeamWindowsdns_queryHigh142Free2023-10-24