Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects HTTP POST requests targeting Adobe Commerce or Magento checkout, customer, or admin endpoints that contain suspicious syntax patterns indicative of Server-Side Template Injection (SSTI). These patterns ({{...}}, {%...%}, ${...}) are common in various template engines and, when injected into application inputs, can lead to Remote Code Execution (RCE) via CVE-2026-75650.
Detects attempts to exploit CVE-2026-83549 in SonicWall SMA1000 appliances, where an attacker sends a malicious HTTP request to the 'workplace' URI containing shell metacharacters such as ';', '|', '`', or '$(' to execute arbitrary OS commands.
This rule detects a potential heap overflow exploitation attempt against F5 BIG-IP Access Policy Manager (APM) by inspecting HTTP POST requests to the /oauth/token endpoint with an unusually large 'grant_type' field (exceeding 4096 bytes). This behavior is characteristic of an attempt to trigger the heap overflow vulnerability identified as CVE-2026-94127.
Detects unauthorized POST requests to SharePoint WebPart gallery pages that lack valid authentication cookies, which may indicate exploitation of CVE-2026-65660. The rule monitors for POST methods to specific SharePoint pages while excluding requests that already contain standard SharePoint authentication cookies (FedAuth, rtFa).
Detects unauthorized or external access attempts to the Ollama LLM API service (TCP port 11434). The rule specifically flags POST requests targeting the /api/generate or /api/chat endpoints, which are commonly exposed via misconfiguration or lack of authentication, potentially allowing remote command execution or model exploitation.
Broad triage/hunting rule to surface all requests to the j_security_check authentication endpoint on Cisco Catalyst SD-WAN Manager, in support of investigating CVE-2026-76504 (unauthenticated admin auth-bypass zero-day). Cisco advises reviewing serviceproxy-access.log and vmanage-server.log for requests to this endpoint from unknown or unauthorized source IPs. This rule matches ANY request to the endpoint and is NOT itself evidence of compromise -- every match requires manual review of source IP legitimacy against known/authorized administrative addresses.
Detects an exploitation attempt against PoeLLM or LiteLLM MCP test/connection endpoint using a python3 stdio payload that fetches data from port 81.
This rule monitors network traffic from CommonSecurityLog data to detect bidirectional communication between NetScaler appliances and known malicious infrastructure associated with the CVE-2026-88772 campaign, which is indicative of command-and-control activity.
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 potential exploitation attempts targeting unpatched Citrix NetScaler ADC or Gateway devices, specifically looking for unauthenticated requests to management or sensitive endpoints that contain command execution indicators. This rule is designed to identify activity associated with vulnerabilities similar to CVE-2026-88771.
Detects potential exploitation attempts targeting unpatched Citrix NetScaler ADC or Gateway devices, specifically looking for unauthenticated requests to management or sensitive endpoints that contain command execution indicators. This rule is designed to identify activity associated with vulnerabilities similar to CVE-2026-88771.
Detects suspicious behavior by the IIS worker process (w3wp.exe) indicative of web shell deployment, specifically the spawning of command interpreters (cmd.exe, powershell.exe) or the writing of .aspx files. This activity is consistent with exploitation campaigns targeting MOVEit Transfer, such as those conducted by the Lace Tempest (Cl0p) group.
Detects SQL injection exploitation attempts against MOVEit Transfer targeting the CVE-2023-34362 vulnerability, followed by the deployment and subsequent interaction with the 'human2.aspx' webshell associated with Cl0p ransomware mass-exploitation campaigns.
Detects attempts by potentially malicious processes, such as web-browsing tools, scripts, or agents, to access the cloud instance metadata service (169.254.169.254) or associated metadata paths. This behavior is indicative of Server-Side Request Forgery (SSRF) exploitation aimed at stealing cloud instance credentials.
The following analytic detects local file inclusion (LFI) attacks targeting Kubernetes Nginx ingress controllers. It leverages Kubernetes logs, parsing fields such as `request` and `status` to identify suspicious patterns indicative of LFI attempts. This activity is significant because LFI attacks can allow attackers to read sensitive files from the server, potentially exposing critical information. If confirmed malicious, this could lead to unauthorized access to sensitive data, further exploitation, and potential compromise of the Kubernetes environment.
Detects unauthenticated path traversal attempts targeting Grav CMS web servers. The rule identifies HTTP requests containing directory traversal sequences (e.g., ../, %2e%2e%2f) directed at sensitive configuration files (.yaml) or directories (/user/config, /system/config), consistent with exploitation patterns such as CVE-2026-42608.
This rule detects potential exploitation attempts targeting the Splunk REST API (CVE-2026-20253) by monitoring for unauthenticated inbound requests to the /services/ path. It specifically looks for requests that lack the required Authorization or Cookie headers.
This rule monitors network appliance logs (Fortinet, Cisco, Meraki, WatchGuard, Sophos) for patterns associated with known vulnerabilities, including authentication bypass (CVE-2022-40684), SQL injection, path traversal, and command injection attempts within URL parameters. It also flags high-severity IPS/IDS alerts generated by these devices.
This rule monitors network appliance logs (Fortinet, Cisco, Meraki, WatchGuard, Sophos) for patterns associated with known vulnerabilities, including authentication bypass (CVE-2022-40684), SQL injection, path traversal, and command injection attempts within URL parameters. It also flags high-severity IPS/IDS alerts generated by these devices.
Detects the creation of files with potentially executable extensions (e.g., .php, .jsp, .pl, .cgi, .sh, .py) within NetScaler web-accessible directories. This behavior is indicative of an adversary attempting to deploy a web shell for persistence or command execution following a successful exploit of the web application.
This rule detects anomalous, high-frequency unauthenticated POST requests targeting NetScaler ADC and Gateway management or service endpoints (/vpn/, /logon/, /nitro/). Such patterns are characteristic of automated reconnaissance and exploitation attempts, specifically targeting vulnerabilities like CVE-2026-88771 and CVE-2026-88772.
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