Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects administrator-privileged actions in JFrog Artifactory audit logs attributed to the 'token:anonymous' identity, the tell-tale signature left when CVE-2026-42018 (unauthenticated token retrieval) is chained with CVE-2026-42016 (privilege escalation) to mint an admin-scope token that retains the anonymous username. Also relevant to CVE-2026-82329 authentication bypass activity.
Detects administrator-privileged actions in JFrog Artifactory audit logs attributed to the 'token:anonymous' identity, the tell-tale signature left when CVE-2026-42018 (unauthenticated token retrieval) is chained with CVE-2026-42016 (privilege escalation) to mint an admin-scope token that retains the anonymous username. Also relevant to CVE-2026-82329 authentication bypass activity.
Detects administrator-privileged actions in JFrog Artifactory audit logs attributed to the 'token:anonymous' identity, the tell-tale signature left when CVE-2026-42018 (unauthenticated token retrieval) is chained with CVE-2026-42016 (privilege escalation) to mint an admin-scope token that retains the anonymous username. Also relevant to CVE-2026-82329 authentication bypass activity.
Detects Java-based Metasploit/Meterpreter payload files (.class/.jar) dropped post-exploitation, as observed following PaperCut RCE exploitation chain
Detects rapid ICMP (ping) traffic directed towards specific internal and external hosts, characteristic of the RedTail Linux malware attempting to perform network discovery or validate connectivity to command-and-control infrastructure.
Detects rapid ICMP (ping) traffic directed towards specific internal and external hosts, characteristic of the RedTail Linux malware attempting to perform network discovery or validate connectivity to command-and-control infrastructure.
Detects rapid, repeated execution of process control utilities (kill, strace, inotifywait, timeout) directed at monitored processes, often used by malware (such as 'redtail') to disable security monitoring, debugging, or auditing tools on Linux systems.
Matches known RedTail malware payloads and staging scripts by exact SHA-256 hash equality
Detects a suspicious sequence of events on a Linux host: first, the 'iptables' firewall rules are flushed (-F), followed by the creation of an inbound TCP listener on a high port (>1024) and the activation of that port via iptables, finally correlating this with a network listener process residing in temporary or suspicious directories such as /tmp, /var/tmp, or /dev/shm. This behavior is indicative of a potential backdoor installation or temporary listener setup for unauthorized access.
Detects rapid, repetitive queries to system hardware identifiers (DMI, CPU info, virtualization attributes) commonly used by adversaries for reconnaissance or environment awareness (sandbox detection). The rule identifies suspicious behavior by tracking the execution of commands like 'cat', 'grep', or 'dmidecode' that target sensitive Linux system files (e.g., /sys/devices/virtual/dmi/id/*, /proc/cpuinfo) when performed by non-standard parent processes in a short time window.
Detects specific suspicious processes (identified by hash or path) initiating a listening network connection on non-standard ports typically associated with honeypot captures, specifically referencing Cowrie-related paths or known malicious samples.
Detects potential Qilin ransomware binaries following Cisco FMC-based intrusion by UAT-11988. Source intel provides only name-level attribution (no sample hash/byte IOC for the payload), so this is tightened to a valid PE, a plausible ransomware-payload size band, and >=2 occurrences of the family string -- a bare single 'Qilin' substring in an arbitrary PE (e.g. an unrelated app, build path, or AV/report string) is not sufficient to alert on alone.
Detects unauthenticated HTTP POST requests to the PaperCut web management interface that attempt to modify server configuration settings. This behavior is consistent with exploitation attempts targeting vulnerabilities like CVE-2026-81578, which may allow for unauthorized pre-authentication remote code execution.
This rule detects high-frequency account and email address enumeration attempts. It monitors syslog data for SMTP commands such as VRFY, EXPN, or RCPT TO, and analyzes Microsoft Entra ID (SigninLogs) for authentication failures specifically associated with error code 50034 (user not found). Both behaviors are indicative of an adversary attempting to validate user identities within an environment, often as a precursor to targeted phishing or brute-force attacks.
Detects suspicious execution of system commands (curl, wget, python, bash, etc.) by AI/ML-related server processes like LiteLLM, RAGFlow, or Kestra. The detection looks for command-line arguments that may indicate credential harvesting, such as attempts to access environment variables, sensitive database configuration files, or the use of encoded data/network retrieval tools.
Detects node.js or bun runtime processes accessing known sensitive cloud, CI, and package manager credential files on disk. This behavior is indicative of malicious npm supply chain attacks (e.g., Mini Shai-Hulud) attempting to exfiltrate secrets stored in standard configuration paths.
Detects Linux processes masquerading as 'php-fpm' or 'postgres' that match known SHA-256 hashes associated with the RedTail malware family. The rule identifies processes attempting to hide their identity using techniques similar to prctl(PR_SET_NAME) to rename themselves while running malicious code.
Identifies devices running versions of Chromium-based browsers (such as Chrome) vulnerable to CVE-2026-85046, a V8 type confusion vulnerability that allows remote code execution within the browser sandbox.
Identifies devices running versions of Chromium-based browsers (such as Chrome) vulnerable to CVE-2026-85046, a V8 type confusion vulnerability that allows remote code execution within the browser sandbox.
This rule detects potential web skimmer activity where a user's browser performs a network connection to known payload delivery hosts (e.g., paste.sh or Google Sheets API) followed by a clipboard modification event on the same device within a one-hour window. This behavior is consistent with malicious scripts attempting to replace copied cryptocurrency wallet addresses with an attacker-controlled address.
Detects network requests to unpkg.com or npmmirror for 'index.html' files directly under a package path. This behavior deviates from standard package management usage (which typically fetches tarballs or specific JavaScript modules) and is often associated with adversaries using npm packages as hosting infrastructure for phishing landing pages.
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