Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects HTTP requests containing user-agent strings commonly associated with known scanning and reconnaissance tools such as Wfuzz, WPScan, and Recon-ng. These tools are often used by attackers to gather information about web applications and infrastructure before launching an attack.
Detects exploitation attempts against Citrix Netscaler, Application Delivery Controller (ADS), and Citrix Gateway by identifying specific URI query patterns associated with CVE-2020-8193 and CVE-2020-8195.
Detects a potential exploitation attempt of CVE-2023-25157, a SQL injection vulnerability in GeoServer. The rule looks for specific GET requests to '/geoserver/ows' containing 'CQL_FILTER=' along with known vulnerable functions or SQL injection keywords in the query string.
Detects exploitation attempts of the OWASSRF variant targeting Exchange servers. This exploit leverages the OWA endpoint to access the PowerShell backend endpoint, often associated with CVE-2022-41080 and CVE-2022-41082.
Detects suspicious file types (such as web shells, scripts, or executables) being dropped by the IIS worker process (w3wp.exe) associated with Microsoft Exchange. This behavior is indicative of successful exploitation of Exchange vulnerabilities, often leading to the deployment of web shells for persistent access.
Detects Server-Side Template Injection (SSTI) attempts made via GET requests. The rule looks for common SSTI payload strings within the request, specifically excluding requests that result in a 404 Not Found status code to reduce false positives.
This rule detects attempts to inject Cross-Site Scripting (XSS) payloads via GET requests in web access logs. It specifically looks for common XSS strings and encoded variations within the request URL, such as '<script>', '<iframe>', '<svg>', 'document.cookie', 'document.domain', 'onerror=', 'onresize=', 'onload=', 'onmouseover=', '${alert', 'javascript:alert', and their URL-encoded forms. The rule filters out requests that result in a 404 HTTP status code to reduce false positives.
Detects access attempts to the SUPERNOVA webshell, specifically looking for requests to 'logoimagehandler.ashx' with 'clazz' in the query string, or requests to 'logoimagehandler.ashx' resulting in a 500 HTTP status code. This activity is indicative of an adversary interacting with a deployed webshell.
This rule detects potential ReGeorg webshell activity by looking for specific query parameters in web server logs. It focuses on requests that contain 'cmd=read', 'connect&target', 'cmd=connect', 'cmd=disconnect', or 'cmd=forward' in the URI query string, combined with a null referrer and null user agent, and using the POST method. This combination of indicators is highly suspicious for webshell communication.
Detects the Internet Information Services (IIS) command-line tool, AppCmd, being used to list passwords or configuration details that may contain sensitive information. This activity indicates an attempt to dump credentials from IIS.
Detects access patterns indicative of the DEWMODE webshell, which was used in attacks exploiting Accellion FTA. The rule looks for specific query parameters ('?dwn=', '&fn=', '.html?' or '&dwn=', '?fn=', '.html?') within the URI query string, which are characteristic of how this webshell operates.
Detects exploitation attempts targeting Pulse Secure VPN appliances via CVE-2019-11510. Specifically, it looks for requests to a URI path containing '/dana/html5acc/guacamole/', which is indicative of an attacker attempting to access the Guacamole component of the Pulse Secure appliance.
Detects exploitation attempts targeting the F5 BIG-IP vulnerability CVE-2020-5902. The rule looks for specific URI query patterns indicative of directory traversal within the '/tmui/' or '/hsqldb' paths, which are known to be vulnerable.
This rule detects attempts to exploit CVE-2019-3398, a path traversal vulnerability in Confluence. The detection logic specifically looks for HTTP POST requests to '/upload.action' containing the path traversal sequence 'filename=../../../../'. This pattern indicates an attempt to upload a file to an arbitrary location on the server, which is characteristic of the CVE-2019-3398 exploitation.
This rule detects suspicious Windows file path strings (e.g., 'C:/Users', 'C:/Windows', 'C:/Program Files') within the URI query component of web requests. The presence of such strings in a URI could indicate an attempt to exfiltrate data from a Windows system or communicate with a webshell that is attempting to access local files or directories. The rule looks for both standard and URL-encoded variations of these paths.
Detects exploitation attempts against the Oracle WebLogic server vulnerability CVE-2021-2109. The rule specifically looks for GET requests containing 'com.bea.console.handles.JndiBindingHandle', 'ldap://', and 'AdminServer' in the URI query, which are indicators of an attempted JNDI injection via LDAP.
This rule detects a specific HTTP GET request pattern associated with potential exploitation of CVE-2023-36884 by the RomCom threat group. The pattern involves a URI containing '/MSHTML_C7/' and a query parameter 'd' followed by an IPv4 address.
Detects exploitation attempts using the JNDI-Exploit-Kit by looking for specific URI patterns in web server logs. These patterns are indicative of various JNDI injection payloads designed to achieve remote code execution, reverse shells, or memory shell deployments on vulnerable applications like Tomcat, Jetty, Weblogic, JBoss, Websphere, and Spring.
Detects exploitation attempts targeting Microsoft Exchange servers, specifically those associated with the HAFNIUM group's activity. The rule looks for suspicious POST requests to specific URI paths and user-agent strings that were observed during the HAFNIUM attacks.
Detects an authentication bypass vulnerability (CVE-2021-40539) affecting the REST API URLs in Zoho ManageEngine ADSelfService Plus. The rule specifically looks for requests to vulnerable endpoints that could be used to exploit this flaw.
This rule detects potential exploitation attempts targeting the Centos Web Panel (CWP) 7, specifically looking for indicators related to CVE-2022-44877, an unauthenticated remote code execution vulnerability. The detection logic focuses on POST requests to '/login/index.php' containing specific query parameters and keywords often associated with reverse shells or command injection, such as 'login=$(' or base64 encoded 'python' strings.
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