Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
7,277 detections
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Detects an Antivirus alert in a highly relevant file path or with a relevant file name.
This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place.
This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place.
This rule detects network connections made to specific non-standard ports (7777, 8080, 8443) where the remote URL contains substrings associated with proxy or tunneling activities ('proxy', 'tunnel', 'hide'). This behavior is commonly associated with malware attempting to evade security controls by routing traffic through unauthorized intermediaries or obfuscated tunnels.
Detects anomalous processes targeting modern AI developer credential files and configuration files for tools like Claude, Gemini, and Cursor, a behavior exhibited by IronWorm.
Detects when a non-root user modifies, creates, or renames files within common cron directories or the main crontab file on Linux systems. This activity can indicate an attempt to establish persistence or schedule malicious tasks.
This rule detects potential container escape attempts on Linux systems by monitoring suspicious file system access patterns to the host's root directory or process creation events involving 'mount', 'nsenter', or 'chroot' commands with parameters indicative of host interaction. Specifically, it looks for file operations on '/proc/1/root', '/proc/1/cwd', '/proc/1/exe', '/proc/1/fd', '/proc/1/ns', '/proc/1/environ', '/proc/1/mounts' or paths starting with '/host', '/hostroot', '/host-root', '/node-root'. It also flags 'mount' commands targeting '/proc/1/root', '/proc/1', 'nsenter', '--target 1', 'hostpath', or '/host', 'nsenter' commands with namespace manipulation arguments, and 'chroot' commands targeting '/proc/1/root', '/host', or '/hostroot'. These activities are commonly associated with adversaries trying to break out of a containerized environment to gain access to the underlying host.
This rule monitors DNS queries and network connections for access to a set of known domain names associated with Adversary-in-the-Middle (AiTM) phishing infrastructure. It correlates data from DNS events, device network logs, and virtual machine network connections to identify potential interactions with malicious phishing sites typically used to capture user credentials or session tokens.
This rule monitors DNS queries and network connections for access to a set of known domain names associated with Adversary-in-the-Middle (AiTM) phishing infrastructure. It correlates data from DNS events, device network logs, and virtual machine network connections to identify potential interactions with malicious phishing sites typically used to capture user credentials or session tokens.
This rule detects suspicious activity associated with the Bun runtime after an npm package install. It flags instances where Bun, or download utilities (curl/wget) fetching 'bun.sh', are spawned from Node.js-related processes (npm, node, node-gyp) particularly when located in common temporary or cache directories, indicating potential supply chain compromise or unauthorized runtime deployment during build processes.
Detects the execution of Dropbear SSH binaries (dropbear, dropbearkey, dropbearmulti) on identified OT, ICS, or SCADA assets. The rule flags suspicious configurations such as the use of non-standard ports (2222, 44818), remote port forwarding, or running in the foreground, which may indicate unauthorized remote access or tunneling on sensitive operational technology infrastructure.
Detects the execution of the LANDFALL spyware's SELinux policy manipulation helper (`l.so`). The spyware's loader (`b.so`) sets a `PRELOAD_PATH` environment variable pointing to `l.so` and uses `LD_PRELOAD` to inject another payload into the benign `/system/bin/id` process. This behavior is specific to the "interactive" execution mode of the spyware.
Detects bind mounts used to hide malware in obscured filesystem paths
Detects disabling of Linux audit daemon to remove security monitoring
Detects upload of encrypted archive files indicating staged exfiltration
This rule detects multiple outbound network connections to a specific set of known malicious C2 IP addresses on specific ports within a one-hour window. This behavior is indicative of a multi-payload delivery pattern associated with malware families such as Remcos, Agent Tesla, and RedLine.
Detects reading of /etc/shadow file for offline password cracking
Detects use of dd command to wipe disk content for data destruction
Detects the initial stage of the Meow RAT ClickFix campaign, specifically targeting fileless Zsh loaders. This rule identifies the execution of Zsh, Bash, or Sh processes that combine 'eval', 'base64', and 'gzip' with 'curl' or 'osascript' in their command line, often including redirection to /dev/null. This combination indicates an attempt to fetch and execute a gzipped and base64-encoded payload directly in memory.
Detects the spawning of /bin/sh or /bin/bash as a direct child process of ffmpeg, jellyfin, or nextcloud. This behavior is often indicative of exploitation attempts against these media and storage services, potentially leveraging remote code execution vulnerabilities.
Detects unauthorized execution of MeshCentral's meshctrl.js to interface with a local WebSocket endpoint on PeopleSoft servers, likely indicative of session hijacking post-exploitation of CVE-2026-35273 by the ShinyHunters threat group.
Detects the spawning of suspicious shell processes (sh, bash, cmd.exe) by media processing applications like ffmpeg, ffprobe, jellyfin-ffmpeg, jellyfin, or nextcloud. This activity is often indicative of an adversary exploiting a vulnerability in these applications to gain initial access or execute arbitrary commands, potentially leading to further compromise. The rule specifically looks for suspicious command-line arguments that suggest interactive shells, network connections, or direct command execution.
Detects the OpenClaw AI agent process spawning shell interpreters (bash, sh, zsh) or network utilities (curl, python3) with command-line arguments indicative of base64-encoded payload execution. This behavior often suggests malicious markdown-based skill execution attempting to bypass sandboxing by the ClawHavoc threat actor.
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