Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
7,265 detections
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Detects suspicious process execution where a shell or scripting tool is spawned by the nsppe process or running under the nobody account, followed closely by file creation or modification activity in persistence locations or NetScaler GUI web directories.
Detects potential tampering of Apache HTTP Server configuration files (httpd.conf) involving PHP engine or script handlers, followed closely by an Apache service reload (HUP signal) on the same device within a 10-minute window.
Detects operator synchronization scripts (sync-all.sh, sync-memory.sh, sync-cc-users.sh) spawning SSH, rsync, or scp commands targeting AI-named jump-server accounts (claude, grok, gemini, glm).
Detects web or FTP server parent processes (such as apache2, httpd, nginx, php-fpm, or proftpd) spawning shell or utility processes (such as bash, sh, python, nc, curl, wget), which is consistent with webshell execution or post-exploitation activities.
Detects potential abuse of Tailscale SSH Unix socket forwarding where the tailscaled daemon touches sensitive files/sockets (such as docker.sock or /etc/shadow) or creates/replaces Unix sockets following an SSH session.
Detects modifications to the Tor configuration file (torrc) that permit SSH traffic (port 22) in the exit policy, followed by a Tor service reload or restart on the same device within a 4-hour window. This behavior may indicate an adversary setting up an onion routing proxy or covert tunnel.
Identifies devices with Signal software flagged by Defender Vulnerability Management for CVE-2026-113380 (RingRTC before 2.72.0, hangup commands dropped when call state machine queue is flooded). Exposure rule, not an exploit detection; results are deduplicated per device and sorted by recent Signal activity.
Detects instances of GitLab and Ruby running vulnerable software versions based on software inventory checks against fixed release versions.
Detects the execution of rm commands using force flags to delete multiple critical appliance, system, and web server log files simultaneously on Linux hosts.
Detects potential web shell activity where a web or application server process (such as IIS, Apache, Nginx, or Tomcat) writes a script file (e.g., .aspx, .jsp, .php) into a web-accessible directory, followed shortly by spawning a command-line shell or utility process.
Detects anomalous activities associated with potential PHP2Shell exploitation or webshell deployment where a web server worker (such as Apache, HTTPD, or PHP) spawns a Unix shell containing suspicious utility tokens, drops a PHP file outside excluded directories, or creates a PHP session-derived file.
Detects the modification or setting of the execInstalledOnly parameter to false, 0, or disabled on VMware ESXi or Linux hosts via process execution command lines or syslog messages, often associated with running uninstalled or arbitrary scripts/binaries in virtualized environments.
Correlates an inbound connection to a Python/Xoscar/Xinference pool process with an outbound connection from a shell spawned by that same pool process shortly afterward, potentially indicating exploitation and reverse shell activity.
Detects the presence of Cisco SD-WAN vManage software, vulnerabilities related to CVE-2026-76504, associated file artifacts, and process executions across endpoints using inventory and event logs.
Detects command output staged in a temporary file (/tmp/nx_cmd.txt) by a Unix shell spawned from ExifTool or Perl, typically resulting from Gotenberg CVE-2026-42589 exploitation, or detects the specific staging filename behavior independently.
Detects a sequence where an UpdraftCentral management request is made to a WordPress site followed by plugin installation or user creation requests from the same source within a 30-minute window, potentially indicating unauthorized plugin installation or webshell deployment via compromised management endpoints.
Identifies devices running Request Tracker (RT) applications, processes, files, or network services, and flags instances with vulnerable versions or specific CVEs (CVE-2025-61873, CVE-2026-41075, CVE-2026-41076, CVE-2026-6841, CVE-2026-44229, CVE-2026-44230, CVE-2026-44231) below version 5.0.10.
Detects potential SQL injection (SQLi) attempts targeting web applications by identifying multiple requests matching specific SQLi regex patterns combined with encoding or internal reference markers within web access logs.
Detects the SITE CPFR and SITE CPTO command sequence in ProFTPD logs, which is characteristic of exploiting the mod_copy vulnerability (CVE-2015-3306) to copy files without authentication.
Detects script files (PHP, JSP, etc.) created or renamed within web root directories by the ProFTPD process, indicating potential exploitation of the mod_copy module (CVE-2015-3306) to upload web shells.
Detects ProFTPD FTP server commands where an adversary uses SITE CPFR (Copy From) to reference a sensitive file path (such as /etc/passwd or SSH keys) followed by SITE CPTO (Copy To) on the same host within a 10-minute window, which indicates potential staging or unauthorized copying of sensitive system files via FTP.
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