Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects indicators associated with the ChatGPT Custom GPT ClickFix campaign across process, network connection, DNS, and HTTP telemetry: known malicious file hashes, C2 IP addresses, the chattypetty.com domain, and known payload-hosting URLs.
Detects web server requests for .aspx files where the User-Agent string identifies as Windows PowerShell and includes the zh-CN locale setting. This behavior is often characteristic of automated exploitation tools or web shells (like China Chopper) interacting with compromised web servers.
Detects outbound HTTP POST requests that contain a JPEG file signature ('FF D8 FF') in the body but lack a 'Content-Type' header. This pattern is indicative of potential C2 communication from a loader or malware family attempting to exfiltrate or receive data disguised as an image file while bypassing basic header-based inspection.
Detects network traffic associated with Wazza phishkit anti-bot gates, including beacon communications, TLS SNI patterns, fingerprint iframe URIs, and challenge-platform requests.
Detects network traffic (DNS, TLS SNI, and HTTP) associated with Wazza phishkit infrastructure, specifically looking for malicious domains like boegl-krysl.eu and coppietersrecherche.eu, as well as Cloudflare workers.dev domains used for beaconing and lures.
Detects a multi-stage Wazza phishkit communication chain over HTTP, involving initial configuration retrieval, token minting, token firing, and subsequent redirection with signed tokens.
Detects unauthorized attempts to access the Ray Dashboard Job Submission API, which is vulnerable to remote code execution (CVE-2023-48022). Attackers can leverage this API endpoint to execute arbitrary commands on the Ray cluster.
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.
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, DNS queries, and user web clicks to detect interactions with known malicious domains associated with credential harvesting and phishing campaigns, specifically those impersonating security or SSO portals.
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.
This rule performs a point-in-time IOC hunt within CommonSecurityLog data to detect indicators associated with NeedyMantis. It monitors for specific C2 infrastructure domains ('tripswithengine.com') and a hardcoded user-agent string ('Firefox/21.0') in proxy, firewall, or network logs, which are characteristic of this threat actor's activity.
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.
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.
This Splunk query analyzes web logs to identify and categorize user agents, detecting various types of Remote Monitoring and Mangement applications. This activity can signify possible compromised hosts on the network.
Detects HTTP GET requests for files with a .hta extension, utilizing a legacy Internet Explorer User-Agent string. This pattern is commonly associated with SideCopy threat group activities where mshta.exe is used to proxy the execution of remotely hosted malicious HTA files, often as part of an initial infection chain.
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