Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a specific, outdated Internet Explorer user-agent string used by the UpCrypter malware for C2 communications. This User-Agent string is highly specific and outdated, making legitimate use extremely unlikely in modern environments.
Detects SQL injection attempts targeting FortiWeb (CVE-2025-25257) in HTTP GET requests to /api/fabric/device/status. The rule identifies known exploit payloads in the Authorization header, generic SQL injection patterns, and SQL statements like DROP, DELETE, INSERT, UPDATE, CREATE. It also detects known malicious source IPs targeting the vulnerable endpoint.
This rule identifies users who have clicked on specific URLs that are known to be associated with phishing attempts. It correlates email URL information with URL click events to pinpoint users who interacted with malicious links shared via email. This is particularly useful for identifying victims of targeted phishing campaigns.
This detection rule identifies potential exploitation attempts of CVE-2024-36401, a JXPath injection vulnerability in GeoServer. Attackers can send malicious WFS, WMS, or WPS requests to achieve remote code execution. The rule looks for common GeoServer service paths and request types combined with Java code execution strings in web server or network logs.
Detects potential Remote Code Execution (RCE) on a FortiWeb device, possibly related to CVE-2025-25257. The rule correlates a suspicious web request to a potential 'fabric' endpoint with a subsequent shell or utility process launch by the web server process on the same device.
Detects attempts to exploit FortiWeb Pre-Auth SQL Injection leading to Remote Code Execution (CVE-2025-25257) via the /api/fabric/device/status endpoint. The rule specifically looks for SQL injection payloads, including boolean-based and INTO OUTFILE techniques, within the Authorization header of HTTP requests.
Detects attempts to exploit a remote code execution vulnerability (CVE-2024-36401) in GeoServer. Attackers leverage crafted JXPath queries in WFS, WMS, or WPS requests to execute arbitrary commands via Java's getRuntime().exec() method.
Detects potential exploitation attempts against Ivanti Connect Secure devices for vulnerability CVE-2025-22457. This vulnerability is actively exploited in the wild. Attackers can send an abnormally long string composed of digits and periods in the 'X-Forwarded-For' HTTP header to trigger a stack-based buffer overflow, which can lead to remote code execution.
Detects potential exploitation of FortiWeb CVE-2025-25257, a pre-authentication SQL injection vulnerability. This rule identifies an SQL injection attempt against the '/api/fabric/device/status' endpoint, followed by either a suspicious Python file drop in a library directory or a request to a specific CGI script used to trigger the payload.
Detects network traffic associated with the Tycoon and ODx phishing kits, which are used in Attacker-in-the-Middle (AiTM) phishing campaigns to bypass MFA. The rule identifies connections to known malicious domains, IP addresses, and specific URLs used by these kits.
Detects reconnaissance activity associated with the exploitation of SharePoint vulnerabilities (CVE-2025-53770, CVE-2025-53771, etc.). Attackers send a specific HTTP POST request to ToolPane.aspx to probe for vulnerable servers.
This detection identifies potential usage of the Naabu port scanner by searching for its process execution or its specific network user-agent string. Naabu is a fast port scanner that can be used for network reconnaissance.
This rule detects suspicious ad click traffic that routes through Google Ad Services It specifically looks for URLs containing Google Click Identifier (gclid), an ad URL, and a placement ID, while excluding legitimate ad routing services. This could indicate ad fraud or malvertising.
Most but not all clicks on Google ads are routed this way.
Most but not all clicks on Google ads are routed this way.
Detects attempts to exploit multiple buffer overflow vulnerabilities (CVE-2025-8184, CVE-2025-8169, CVE-2025-8168) in D-Link DIR-513 routers via the 'curTime' parameter in formSetWan endpoints.
The following analytic detects the execution of known remote access software within the environment. It leverages network logs mapped to the Web data model, identifying specific URLs and user agents associated with remote access tools like AnyDesk, GoToMyPC, LogMeIn, and TeamViewer. This activity is significant as adversaries often use these utilities to maintain unauthorized remote access. If confirmed malicious, this could allow attackers to control systems remotely, exfiltrate data, or further compromise the network, posing a severe security risk.
This rule detects potential SQL injection attempts by looking for specific keywords and patterns within the 'cs_uri_query' field of Cloudflare WAF logs. These patterns, such as 'UNION SELECT', '' OR 1=1', 'information_schema', and '--', are commonly used in SQL injection attacks to extract information, bypass authentication, or comment out parts of SQL queries. The rule aims to identify malicious requests targeting web applications that could lead to unauthorized database access or manipulation.
This rule identifies network traffic to known Command and Control (C2) infrastructure associated with the Katz Stealer malware family. It uses a list of hardcoded IP addresses and domains from threat intelligence to detect suspicious outbound connections.
This rule detects HTTP POST requests to specific SharePoint application paths, including ToolPane.aspx and SignOut.aspx. These paths have historically been associated with SharePoint vulnerabilities, particularly unauthenticated remote code execution (RCE) exploits. The rule aims to identify attempts to interact with these sensitive endpoints, which could indicate an attacker attempting to exploit known vulnerabilities or perform unauthorized actions.
This detection identifies network traffic to domains known to be used as command and control (C2) infrastructure in recent SharePoint exploitation campaigns. Communication with these domains is a strong indicator of compromise.
This rule detects exploitation attempts against SharePoint servers, specifically targeting CVE-2025-53770 (ToolShell). It has two parts: one for suspicious process creation (cmd.exe spawning powershell.exe from w3wp.exe) and another for malicious web request patterns in IIS logs (POST requests to /_layouts/15/ToolPane.aspx with specific query parameters and referrer).
Detects exploitation attempts of the SharePoint ToolShell 0-day (CVE-2025-53770) using known IOCs and behavior patterns
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