Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule identifies MikroTik devices running vulnerable versions of RouterOS (specifically those older than 7.24) that are susceptible to CVE-2026-84411. This vulnerability involves an integer underflow in the web management HTTP handling, which can lead to unauthenticated remote code execution or denial of service.
Detects anomalous access to the SharePoint WebPartPages.asmx SOAP endpoint, specifically using the GetWebPartPageConnectionInfo method. This query identifies patterns consistent with the exploitation of CVE-2026-65660, where adversaries attempt to smuggle WebPart template markup (e.g., <%@ Register, XamlServices) after legitimate preview methods have been disabled.
Detects a volumetric spike in RPC connection attempts (specifically port 135 followed by Netlogon binding) from a single host to a Domain Controller. This behavior is indicative of the exploit retry mechanism used by Zerologon (CVE-2020-1472) tools, which must attempt the authentication sequence thousands of times due to the low success probability of the all-zero byte ClientCredential.
Identifies NetScaler ADC or Gateway software versions in the inventory that are known to be vulnerable to CVE-2026-88771 and CVE-2026-88772, despite having received the patch for CVE-2026-19490.
Detects attempts to exploit Oracle WebLogic Server vulnerabilities, specifically those leveraging the T3 protocol to transmit malicious Java serialized payloads, as seen in CVE-2026-70756. The rule identifies suspicious T3 handshake patterns and the presence of common Java deserialization gadget chains.
Detects potential exploitation attempts targeting the vulnerable Oracle PeopleSoft PSEMHUB Environment Management Hub endpoint (associated with CVE-2026-35273 and UNC6240). The rule identifies suspicious bursts of POST requests where the URI path uses percent-encoding or mixed-case characters to evade Web Application Firewall (WAF) filtering.
Detects attempts to exploit the Log4Shell vulnerability (CVE-2021-44228) by identifying JNDI lookups (ldap, rmi, dns) via malicious strings within HTTP URI and request headers, a common attack vector for remote code execution.
Detects Heartbleed (CVE-2014-0160) exploitation attempts by monitoring for malformed TLS heartbeat requests (undersized payload) followed by oversized responses from the server that indicate potential memory disclosure.
Detects anomalous SOAP requests to the SharePoint WebPartPages.asmx endpoint specifically targeting the 'GetWebPartPageConnectionInfo' method. This pattern is associated with exploitation attempts against SharePoint vulnerabilities.
Detects network exploitation attempts targeting Fortinet FortiOS and FortiProxy vulnerabilities (CVE-2024-55591, CVE-2025-24472) involving authentication bypass via HTTP header manipulation (Forwarded, X-Forwarded-For) and unauthorized access to the /jsconsole endpoint.
This rule detects potential exploitation of the Oracle PeopleSoft PSEMHUB component vulnerability (CVE-2026-35273). It identifies suspicious POST requests to the PSEMHUB HttpListeningConnector servlet, including obfuscated URL paths, followed by the creation of suspiciously named .jsp or .jspx files in the PSEMHUB.war application directory, which is indicative of a web shell deployment.
Detects the creation or modification of scheduled tasks (crontab entries) initiated by processes commonly associated with Citrix NetScaler ADC/Gateway appliances (nsppe, httpd, nscollect). This behavior is often indicative of persistence mechanisms used by attackers following an initial exploit on an edge network device.
Detects DNS queries originating from NetScaler appliances that exhibit algorithmically generated domain (DGA) characteristics or utilize top-level domains (TLDs) frequently associated with malicious command and control infrastructure. This rule aims to identify potential post-exploitation C2 communication following a compromise of a NetScaler ADC or Gateway appliance.
Detects a sequence of potentially malicious activity targeting LLM-related API endpoints. The rule identifies a client IP performing rapid, distinct endpoint discovery, followed by a POST request to sensitive paths, and concluding with a spike in 5xx server-side errors, indicating potential exploitation attempts or fuzzing against Large Language Model interfaces.
This rule detects potentially malicious POST requests to SharePoint endpoints (such as AddGallery.aspx) that include indicators of WebPartMarkup or ToolPane payloads. This activity attempts to bypass the SPUtility.EnsureAuthentication() check that is typically enforced on the ToolPane.aspx page, potentially allowing unauthorized code execution or configuration manipulation.
This rule identifies Linux-based devices that are vulnerable to specific security flaws tracked under CVE-2026-64507 and CVE-2026-64508. It correlates vulnerability assessment data with device inventory to highlight exposed systems.
Detects potential exploitation attempts targeting CVE-2026-16232 in Check Point SmartConsole. The rule identifies specific authentication error messages indicating that a username length validation vulnerability is being triggered by a remote attacker attempting to bypass authentication.
Detects instances where the Ivanti Sentry service process spawns suspicious child processes (shells, network utilities, or interpreters) while running with root privileges. This behavior is indicative of exploitation of CVE-2026-10520, an OS command injection vulnerability in Ivanti Sentry that enables unauthenticated remote code execution with root permissions.
This rule detects an exploitation attempt targeting the ConnectWise ScreenConnect Path Traversal vulnerability (CVE-2024-1708). The detection monitors incoming HTTP traffic for attempts to traverse the file system by inspecting the URI for repeated '..' sequences within the '/App_Extensions/' directory, a hallmark of this vulnerability.
Detects incoming HTTP POST requests to the 'diffpatch' endpoint in Gitea that contain suspicious 'diff --git' patterns combined with path traversal sequences ('../') targeting 'hooks/' directories. This indicates an attempt to exploit CVE-2026-60004 to achieve unauthorized file system access or remote code execution via repository hooks.
Detects incoming HTTP POST requests to internal AI/LLM API endpoints containing common prompt injection strings, such as instructions to ignore previous system prompts or attempts to trigger jailbreak modes like 'DAN'.
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