Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a PHP TypeError in Magento system logs where array_merge() is called with an integer argument following an include statement. This signature is indicative of exploitation attempts targeting Magento sites using the StyleSmuggler vulnerability, which often involves malicious file inclusion and code execution.
Detects a PHP TypeError in Magento system logs where array_merge() is called with an integer argument following an include statement. This signature is indicative of exploitation attempts targeting Magento sites using the StyleSmuggler vulnerability, which often involves malicious file inclusion and code execution.
Detects the creation, modification, or renaming of files within directories associated with GVFS (GNOME Virtual File System) or files masquerading as GVFS components. Adversaries often use these paths and file names to stage or hide malicious tools and persistence mechanisms on Linux systems.
Detects the creation, modification, or renaming of files within directories associated with GVFS (GNOME Virtual File System) or files masquerading as GVFS components. Adversaries often use these paths and file names to stage or hide malicious tools and persistence mechanisms on Linux systems.
Detects the presence of known StyleSmuggler implant binaries (noted as Rust-based implants masquerading as gvfsd-user or kworker) by matching file SHA256 hashes.
Detects the presence of the StyleSmuggler Rust-based Linux implant. The rule identifies the malicious binary by its static SHA256 hashes or a combination of indicators including masquerading as a kernel thread, utilization of gvfsd-related filenames and directories, and interaction with Redis session data.
Detects inbound HTTP POST requests to the /paypal/transparent/response/ endpoint containing encoded PHP webshell payloads, specifically attempting to execute base64-decoded code via eval.
Detects the execution of common command-line utilities and tools used to enumerate virtual machines, hypervisors, and cloud instance information. Adversaries may perform this reconnaissance to identify virtualization environments, sandbox targets, or cloud infrastructure configurations.
Detects outbound web requests directed at public NPM mirrors and CDNs (unpkg, npmmirror, yarnpkg, jsdelivr) that contain strings matching known malicious package names associated with the 'Beamglea/ClickFix' campaign. This activity is typically indicative of a victim visiting a deceptive Cloudflare CAPTCHA phishing page designed to execute malicious scripts in the browser.
This rule monitors for the execution of Node.js processes involving a file named 'parser.js' and a component or argument referred to as 'ldata'. This behavior is characteristic of specific application workflows, but when observed as a standalone or unusual process, it may indicate unauthorized script execution or the activity of a malicious node-based tool.
Detects network connections to known suspicious infrastructure, including specific domains associated with Session, catbox.moe, or targeted npm registry and GitHub API queries initiated by common command-line utilities. This behavior often suggests adversary communication, data staging, or potential tool/malware delivery.
Detects coordinated behavioral signals associated with the CVE-2025-25249 campaign, which deploys the PivotC2 Node.js RAT on FortiGate devices. The rule correlates anomalous inbound CAPWAP (UDP/5246) traffic, Node.js process execution, suspicious JavaScript file writes, and unauthorized access to Fortinet configuration files, followed by long-lived outbound TLS beacons to non-standard ports.
Detects access to the AWS CLI credentials file (~/.aws/credentials) in a user's home directory, used by CISA's red team to harvest long-lived static IAM access keys.
Detects command-line execution of tools (route, netsh, sysctl) intended to modify host routing tables or enable IP forwarding. Such activity on workstation endpoints may indicate an attempt to bridge network segments, bypass network security boundaries, or facilitate lateral movement/C2 communications.
Detects command-line execution of tools (route, netsh, sysctl) intended to modify host routing tables or enable IP forwarding. Such activity on workstation endpoints may indicate an attempt to bridge network segments, bypass network security boundaries, or facilitate lateral movement/C2 communications.
Detects unauthorized modifications to critical authentication-related configuration files and registry keys. Specifically monitors changes to LSA security packages and notification packages on Windows systems, as well as PAM configuration file modifications on Linux systems, when performed by unsigned or untrusted processes outside of known installer activity.
Detects unauthorized modifications to critical authentication-related configuration files and registry keys. Specifically monitors changes to LSA security packages and notification packages on Windows systems, as well as PAM configuration file modifications on Linux systems, when performed by unsigned or untrusted processes outside of known installer activity.
Detects unauthorized modifications to critical authentication-related configuration files and registry keys. Specifically monitors changes to LSA security packages and notification packages on Windows systems, as well as PAM configuration file modifications on Linux systems, when performed by unsigned or untrusted processes outside of known installer activity.
This rule detects attempts to modify file or directory permissions (e.g., using icacls, takeown, chmod, or chown) on paths associated with known security products. Such activity is often indicative of an adversary attempting to tamper with, disable, or exclude security tools from logging or inspection.
This rule detects attempts to modify file or directory permissions (e.g., using icacls, takeown, chmod, or chown) on paths associated with known security products. Such activity is often indicative of an adversary attempting to tamper with, disable, or exclude security tools from logging or inspection.
Detects the execution of commands containing keywords associated with Linux kernel module management (modprobe) and sensitive memory/kernel modification flags (msr, allow_writes). These keywords are often utilized by malicious actors attempting to load Loadable Kernel Modules (LKMs), manipulate system memory directly, or disable kernel-level protections.
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