Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects unauthorized access to SSH private key files by processes spawned directly or indirectly from npm lifecycle hooks (e.g., postinstall, preinstall). This behavioral pattern is associated with supply chain attacks such as the Miasma infostealer, where malicious dependencies attempt to exfiltrate credentials during the installation phase.
Detects fileless execution of the MYRA Linux RAT, which utilizes memfd_create and fexecve to load an ELF binary directly into memory. The detection identifies malicious payloads masquerading as the systemd-userdbd process when spawned by non-standard parent processes such as shell interpreters, node, or npm, as well as abnormal command-line arguments.
Detects persistence mechanisms used by the MYRA Linux RAT, specifically targeting the modification of /etc/ld.so.preload, the deployment of a malicious library (.libcache.so) to /usr/local/lib/, and suspicious shared object file creation in temporary directories (/tmp or /dev/shm) initiated by Node.js or npm processes. This behavior was observed in the Polymarket Trap npm supply chain campaign.
This detection identifies potential usage of the Naabu port scanner by searching for its process execution or its specific network user-agent string. Naabu is a fast port scanner that can be used for network reconnaissance. This search leverages the Endpoint and Web CIM data models.
Detects the execution of commands used to parse /etc/hosts for PeopleSoft-related node names (WEB, APP, csprd) for lateral movement targeting. Threat actors (e.g., ShinyHunters) use this to discover internal application and web servers.
Detects web service accounts (e.g., www-data) unexpectedly spawning shells from FFmpeg. This behavior is strongly indicative of remote code execution (RCE) via the PixelSmash vulnerability, specifically targeting automated preview generation in platforms like Nextcloud.
Detects web service accounts (e.g., www-data) unexpectedly spawning shells from FFmpeg. This behavior is strongly indicative of remote code execution (RCE) via the PixelSmash vulnerability, specifically targeting automated preview generation in platforms like Nextcloud.
Detects Jellyfin's automated ffprobe media scan pipeline spawning suspicious network-related shell commands. This indicates active exploitation of the PixelSmash vulnerability (CVE-2026-8461) via zero-click library scans.
Detects node.js processes spawned from npm postinstall hooks accessing developer credential files including .gitconfig, .npmrc, and GitHub CLI token files, consistent with the Operation Friday Harvest infostealer campaign targeting Claude Code, GitHub CLI, and npm tokens via malicious npm packages.
Detects network connections over SMB (port 445) targeting internal IP ranges initiated by common penetration testing or scripting tools (e.g., Python, msfconsole), or attempts containing known exploit strings such as 'eternalblue', 'ms17-010', or 'WinboxExploit'. This behavior is indicative of lateral movement, reconnaissance, or exploitation attempts within the network.
This rule detects network connections to common IP geolocation services such as ip-api.com, ipinfo.io, ipgeolocation.io, and bgpview.io. Adversaries may use these services to gather information about the victim's network, including IP addresses, geographical location, and network topology, which can aid in further targeting or reconnaissance efforts.
Detects anomalous activity originating from Oracle database processes, including the spawning of shell commands via DBMS_SCHEDULER, execution of known attacker staging scripts, and the creation of sensitive output files in temporary directories, which are characteristic of database-level remote code execution or exfiltration attempts.
This rule detects activities related to Operation Escaneo, specifically focusing on the creation, modification, or access to cleartext credential harvesting files (e.g., vpn-passwords.txt) and the execution of associated Python scripts (forti_login2.py, forti_login3.py) used for credential staging and extraction on FortiGate systems.
Detects the staging and potential execution of Java deserialization payloads associated with the ysoserial CommonCollections5 (CC5) exploit, which leverages the BadAttributeValueExpException gadget chain.
Detects unauthorized OS command execution initiated via Oracle DBMS_SCHEDULER jobs, often involving UTL_FILE for output retrieval. This behavior is indicative of RCE attempts against database servers.
Detects outbound network connection from a host to a known malicious IP and port associated with the exploitation of the GeoServer WFS vulnerability CVE-2024-36401. This rule identifies the potential post-exploitation callback, such as a curl command, following successful remote code execution.
Detects the execution of commands used to disable the algif_aead module to mitigate CVE-2026-31431 (Copy Fail).
This rule detects suspicious SAP RFC (Remote Function Call) activity, including the execution of OS commands via SXPG_CALL_SYSTEM, usage of custom ZREDTEAM command interfaces, and the presence of scripts or indicators related to SAP credential extraction (e.g., password hash access).
Detects ffmpeg or ffprobe spawning unexpected child processes such as /bin/sh as a result of the MagicYUV OOB write hijacking the AVBuffer.free function pointer to call system() — a key indicator of CVE-2026-8461 exploitation.
Detects the removal or uninstallation of the ModSecurity Web Application Firewall (WAF) module across Windows (via appcmd.exe) and Linux (via package managers or apxs). Adversaries often disable security controls like ModSecurity to facilitate the exploitation of web vulnerabilities or to maintain persistence without triggering defensive alerts.
Detects the deployment of MeshCentral remote access agents and the creation of a specific ransom note file on compromised PeopleSoft servers, indicative of ShinyHunters activity. The rule identifies the MeshCentral agent by process image name and common deployment paths or by its execution via common shell/download utilities. It also looks for the creation of the ransom note file 'README-IF-YOU-SEE-THIS-YOU-VE-BEEN-HACKED.TXT'.
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