Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects attempts to exploit the WordPress wp2shell vulnerability (CVE-2026-63030/CVE-2026-60137) by correlating the identification of a vulnerable WordPress version (6.9.0-6.9.4 or 7.0.0-7.0.1) via response banners with anomalous Batch REST API requests utilizing the 'author__not_in' parameter.
Detects web server processes (Apache, Nginx, PHP-FPM) spawning a system shell to execute compound commands containing discovery utilities (like id, whoami, hostname, uname, or find) within a 'wp-content/plugins' directory. This behavior is indicative of post-exploitation activity following a remote code execution vulnerability, such as those associated with the wp2shell attack pattern.
Detects web server processes (Apache, Nginx, PHP-FPM) spawning a system shell to execute compound commands containing discovery utilities (like id, whoami, hostname, uname, or find) within a 'wp-content/plugins' directory. This behavior is indicative of post-exploitation activity following a remote code execution vulnerability, such as those associated with the wp2shell attack pattern.
Detects web server processes (Apache, Nginx, PHP-FPM) spawning a system shell to execute compound commands containing discovery utilities (like id, whoami, hostname, uname, or find) within a 'wp-content/plugins' directory. This behavior is indicative of post-exploitation activity following a remote code execution vulnerability, such as those associated with the wp2shell attack pattern.
Detects attempts to perform error-based SQL injection against WordPress instances associated with the wp2shell exploit chain. The rule monitors for the use of MySQL functions EXTRACTVALUE or UPDATEXML within query parameters that are typically targeted by the exploit (author_exclude, author__not_in) or when interacting with the batch REST endpoint.
Detects suspicious batch requests to the WordPress REST API (/wp-json/batch/v1) containing both a DELETE operation on category ID 0 and a POST operation to the core block-renderer, which is characteristic of attempts to exploit vulnerabilities like CVE-2024-27956 to achieve unauthenticated remote code execution.
Detects the execution of sendmail via a shell (sh, bash, dash) spawned by a web server process (Apache, Nginx, httpd) where the process working directory matches the wp2shell plugin pattern (wp2shell_<hex>). This is indicative of remote code execution or web shell activity associated with the wp2shell vulnerability, where the attacker uses sendmail for exfiltration or command output delivery.
Detects the execution of sendmail via a shell (sh, bash, dash) spawned by a web server process (Apache, Nginx, httpd) where the process working directory matches the wp2shell plugin pattern (wp2shell_<hex>). This is indicative of remote code execution or web shell activity associated with the wp2shell vulnerability, where the attacker uses sendmail for exfiltration or command output delivery.
Detects anomalous server responses for WordPress REST API requests targeting /wp/v2/categories/0 where the error message 'block_cannot_read' is returned instead of the expected 'rest_term_invalid'. This behavior is indicative of attempted exploitation using the wp2shell batch-handler desync vulnerability.
Detects suspicious batch requests to the WordPress REST API (/wp-json/batch/v1) containing both a DELETE operation on category ID 0 and a POST operation to the core block-renderer, which is characteristic of attempts to exploit vulnerabilities like CVE-2024-27956 to achieve unauthenticated remote code execution.
Detects the wp2shell unauthenticated SQL injection chain (CVE-2026-63030 / CVE-2026-60137) abusing the REST API batch-route confusion via author_exclude/author__not_in parameters against wp-json/wp/v2/posts or wp-json/batch/v1, where the extraction result reflects the WordPress 6.9 $wp$2y$ bcrypt-over-HMAC-SHA384 hash marker in the request query or response body. Requires both the specific unauthenticated REST SQLi vector AND the hash-format marker to fire, excluding legitimate authenticated admin export/reporting tools that reference wp_users through normal means.
Detects attempts to perform error-based SQL injection against WordPress instances associated with the wp2shell exploit chain. The rule monitors for the use of MySQL functions EXTRACTVALUE or UPDATEXML within query parameters that are typically targeted by the exploit (author_exclude, author__not_in) or when interacting with the batch REST endpoint.
This rule detects when a web server process (such as apache, httpd, or php-fpm) modifies or creates a new PHP file within common WordPress directories (plugins or themes). This behavior is often indicative of an attacker attempting to plant a web shell to gain or maintain persistent access to a compromised server.
Detects attempts to exploit the WordPress wp2shell vulnerability (CVE-2026-63030/CVE-2026-60137) by correlating the identification of a vulnerable WordPress version (6.9.0-6.9.4 or 7.0.0-7.0.1) via response banners with anomalous Batch REST API requests utilizing the 'author__not_in' parameter.
Detects unauthenticated exploitation attempts targeting WordPress sites using wp2shell techniques. The rule identifies malicious payloads attempting to leverage RSS, Navigation, or Calendar Gutenberg blocks in conjunction with the batch REST API to achieve Remote Code Execution.
Detects unauthenticated exploitation attempts targeting WordPress sites using wp2shell techniques. The rule identifies malicious payloads attempting to leverage RSS, Navigation, or Calendar Gutenberg blocks in conjunction with the batch REST API to achieve Remote Code Execution.
Detects certain command line parameters often used during reconnaissance activity via web shells
Detects obfuscated PHP code, specifically webshells, that utilize apostrophe-based concatenation (e.g., 'a'.'b'.'c') to break up strings into 1-3 character chunks. This technique is often used to evade signature-based detection.
Detects unauthenticated exploitation attempts targeting WordPress sites using wp2shell techniques. The rule identifies malicious payloads attempting to leverage RSS, Navigation, or Calendar Gutenberg blocks in conjunction with the batch REST API to achieve Remote Code Execution.
Detects anomalous web server scanning activity where a single source IP performs rapid requests against multiple common administrative or login panel paths (/admin, /wp-admin, etc.) while utilizing randomized ephemeral source ports. This behavior is consistent with automated enumeration scanning, such as that performed by the TuxBot v3 malware.
Detects exploitation attempts against Joomla websites targeting CVE-2023-23752. This vulnerability allows an unauthenticated attacker to disclose sensitive information, such as configuration details or user data, by crafting specific GET requests to the Joomla API.
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