Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects HTTP requests where the User-Agent header matches known strings associated with AI-powered penetration testing or reconnaissance agents, such as PentestGPT, AutoGPT, or AI-Recon tools.
Detects high-frequency POST requests to API endpoints, potentially indicative of automated fuzzing or brute-force parameter mutation attacks, by identifying 50 requests from a single source within a 10-second window.
Detects network traffic containing TLS Server Name Indication (SNI) fields associated with known 'jailbreak-as-a-service' LLM proxies, specifically WormGPT, FraudGPT, and EvilGPT. These services are often used by threat actors to generate malicious content, phishing emails, or exploit code.
Detects high-volume SSH authentication failures from a single source IP address within a short time frame, which is indicative of credential spraying or brute force activity.
Detects unauthenticated HTTP requests directed at management or schema APIs for common vector databases (Milvus, Weaviate, Qdrant). These requests lack the required Authorization header, potentially indicating unauthorized reconnaissance or attempts to exploit public-facing database management interfaces.
This rule detects attempts to exploit a command injection vulnerability (CVE-2026-49869) in the Kestra workflow automation platform. The rule monitors HTTP POST requests to the '/api/v1/flows' endpoint, identifying payloads that define flow types involving shell or execution plugins and contain suspicious command sequences (e.g., shell operators combined with common system utilities like nc, bash, or curl).
Detects an exploitation attempt against a known SQL injection vulnerability (CVE-2026-62262) in the Piwigo photo gallery application, specifically targeting the 'pwg.images.filteredSearch.create' method via the 'ratings' parameter. The detection monitors inbound HTTP traffic for common SQL injection patterns like UNION SELECT, SLEEP commands, and boolean-based injection payloads.
Detects network traffic patterns associated with a specific Cobalt Strike Malleable C2 profile (jquery-cookie), characterized by GET requests to URIs starting with /jquery- with a specific Cookie header structure and the absence of an Accept header.
Detects HTTP POST requests with 'photo' in the URI and Gzip-compressed body content, which is a known C2 communication pattern used by the IcedID banking trojan.
Detects HTTP traffic patterns associated with the default staging URIs of the PowerShell Empire C2 framework. This rule identifies inbound requests to specific .php files (admin/get, news, login/process) with a 'session=' cookie, which are characteristic of Empire agent beaconing behavior.
Detects DNS tunneling attempts by identifying DNS queries with abnormally long subdomains (greater than 50 characters) that exhibit a high request rate (20 or more queries within 60 seconds). This behavior is characteristic of C2 communication tools such as iodine or dnscat2, which encode data within DNS query labels to bypass traditional network security controls.
Detects network traffic associated with the BotHelper RAT communicating with its C2 domain 'easyllms.xyz'. The rule monitors for TLS SNI connections to this domain and specific HTTP API paths (/api/v1/ping, /api/v1/connect, etc.) indicative of command-and-control heartbeats and task execution.
Detects network activity associated with the Psychedelic Stealer malware, including C2 check-ins, API-based tasking, and communication with known C2 infrastructure using specific URI patterns and headers like 'X-API-Key'.
This rule monitors outbound TLS traffic to detect communication between a potentially compromised internal host and the DeepSeek API. This behavior is associated with the 'CLOSEDQUORUM' malware family, which utilizes LLM-based voting mechanisms for command and control (C2) operations via third-party AI services.
Detects HTTP traffic originating from internal hosts to external destinations on port 8989, specifically targeting '/chat/completions' URI patterns. This activity is indicative of the CARBONATO/Hermes Agent leveraging LLM gateway infrastructure as a command-and-control (C2) channel.
Detects specific HTTP traffic patterns associated with the RatHat malware's FRP (Fast Reverse Proxy) reverse-tunneling deployment and C2 status reporting. The rule identifies the sequence of fetching configuration, initiating WebSocket tunnel links, and reporting deployment status to a remote command-and-control server.
Detects network activity associated with the NeedyMantis malware command and control (C2), including DNS queries for the domain corp.tripswithengine.com, TLS SNI identification, and specific HTTP beaconing patterns to /library/zip/ with a hardcoded user agent.
Detects HTTP traffic associated with the NeedyMantis malware, specifically identifying initial beacons to a known C2 domain using a specific User-Agent, followed by command-and-control response headers that suggest the exfiltration of reconnaissance data via the Set-Cookie field.
Detects network patterns associated with NeedyMantis-style command-and-control (C2) activity. This includes specific HTTP GET requests with hardcoded User-Agent strings, cookie-based binary data transfer in server responses, and WebSocket communication attempting to establish binary protocol channels.
Detects outbound network requests to known infrastructure associated with the ClickFix Traffic Direction System (TDS), specifically targeting domains 'fsputnik.com' and 'uasputnik.com'. The rules monitor for requests to specific lure pages, tracker files, and established IP connections used by this malicious campaign to deliver fraudulent prompts or lures to victims.
Experimental CommonSecurityLog template for sensor-reported attempts associated with Cisco advisory cisco-sa-ise-rce-se7bYU57: CVE-2026-20307, CVE-2026-20176 and CVE-2026-20211. Cisco links Snort SIDs 67114, 67115, 67116 and 67130-67132. Configure exact exporter event IDs, sensor vendor/product and confirmed ISE management IPs. A match does not prove successful exploitation or root compromise.
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