Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects suspicious activity on Oracle database hosts, including the spawning of unexpected child processes from Oracle service binaries (such as cmd.exe or shells), the creation or access of known exploit-related script filenames, and the use of UTL_FILE to write files with suspicious extensions to temporary directories, which are patterns indicative of exploitation attempts like DBMS_SCHEDULER remote code execution or data exfiltration.
Detects instances where a Node.js process spawns the 'crontab' utility, likely to modify user cron jobs. This is a common technique used by attackers to achieve persistence by scheduling periodic execution of malicious scripts or reverse shells.
Detects instances where a node or node.exe process accesses common shell history files (such as .bash_history, .zsh_history, etc.). This behavior is often associated with unauthorized access to command history, which may contain sensitive information like credentials or configuration details.
Detects evidence of the MYRA RAT attempting to establish persistence via the LD_PRELOAD environment variable. This is achieved by creating or modifying malicious shared libraries (e.g., .libcache.so) and configuring system startup files (e.g., /etc/profile.d/.sh.local) to ensure the library is loaded by the dynamic linker on startup.
Detects instances where a Node.js process accesses, modifies, or creates files within web browser extension directories. This behavior is indicative of unauthorized access to sensitive browser data, such as extension configurations, authentication tokens, or stored secrets.
Detects HTTP requests where the URI or request body contains indicators of internal network references (e.g., localhost, 127.0.0.1, or RFC 1918 private IP address ranges). This pattern is consistent with Server-Side Request Forgery (SSRF) attempts, where an attacker tries to force a vulnerable web application to perform unauthorized requests to internal resources.
This rule detects potentially malicious activity within Linux environments or containers where a single user context concurrently performs credential hunting (via environment variable dumping or accessing .env files) and terminates processes associated with known cryptocurrency miners or competing malicious actors. This behavior is highly indicative of a cryptojacking infection or a malicious actor clearing out existing resource-hijacking threats.
Detects the execution of the BUMSRAKETE exploit for CVE-2026-45257, which targets kTLS-RX page-cache corruption in FreeBSD to achieve local privilege escalation. The rule monitors for pre-exploitation sysctl enumeration of kernel memory management parameters and the subsequent spawning of privileged shells (su/sh) by the exploit process.
Detects Node.js processes accessing common shell history files or PowerShell history logs. This behavior is indicative of infostealer malware, such as those targeting developers, attempting to extract credentials or command history from the local filesystem.
Detects instances where Node.js or NPM processes (or their parent processes) access sensitive files such as SSH private keys, AWS credentials, environment files, or configuration files containing secrets. This behavior is often associated with infostealers or malicious scripts exfiltrating credentials from developer environments.
Detects malicious npm package behavior where a postinstall lifecycle hook uses 'npm pack' or similar commands to overwrite local node_modules contents with a newer version, a technique used by packages like 'decimal-format-utils' to bypass static analysis.
Detects npm package installation activity or network communication originating from npm-related processes that involve identified malicious packages, maintainers, or scopes associated with supply chain attacks. Specifically monitors for the '@withgoogle' scope squatting, as well as specific malicious package names and maintainer accounts, and tracks related outbound network connections to suspicious C2 domains.
Detects node.exe processes accessing sensitive AWS configuration files (credentials, config), .npmrc files, or suspicious data parsing utilities, indicative of the Polymarket Trap npm infostealer attempting to exfiltrate cloud credentials and tokens from developer workstations.
Detects instances where a Node.js process (e.g., node.exe) spawns standard system reconnaissance binaries such as whoami, hostname, systeminfo, ipconfig, or ifconfig. This behavior is indicative of malicious activity, specifically infostealer campaigns (like the Polymarket Trap / Miasma) that leverage npm postinstall scripts or other Node.js execution patterns to gather host and environment information from developer machines.
Detects node.exe (Node.js runtime) process initiating file read operations on sensitive files such as SSH keys, AWS credentials, Docker configuration files, GPG keyrings, or package manager configuration files (npmrc/pypirc). This behavior is characteristic of malicious npm packages or infostealers attempting to exfiltrate developer credentials, as observed in the Polymarket Trap supply chain campaign.
Detects the staging of exploit artifacts and subsequent spawning of a shell from a modified SUID binary, indicating the exploitation of CVE-2026-45257 (BUMSRAKETE) to achieve root privilege escalation via page-cache shellcode injection.
This rule detects the execution of processes where the image path or parent process path originates from anonymous memory file descriptors ('/memfd:') or file descriptor links ('/proc/self/fd/'). These patterns are frequently associated with fileless malware execution where binaries are executed directly from memory to avoid disk-based detection.
Detects the installation or initiation of an OpenSSH server (sshd) process, which may indicate an attacker establishing a persistent, redundant remote access backdoor. The rule monitors for common installation/enablement patterns across Windows (via sc.exe, PowerShell WindowsCapability) and Linux (via systemctl, service) and flags instances running from non-standard or temporary directories.
Detects unauthorized access or modification attempts to cryptocurrency wallet files (specifically MetaMask and Phantom browser extensions) by non-browser processes. This behavior is indicative of credential theft or wallet exfiltration by malicious software.
Detects malicious activity associated with npm supply chain compromise, including execution of known malicious npm lifecycle scripts, DNS queries to suspected C2 domains, and unauthorized access to sensitive developer credential files (such as .npmrc, .aws/credentials, and SSH keys) by Node.js processes.
Detects potentially unauthorized or malicious loading of kernel modules on FreeBSD systems using the kldload command. The rule identifies suspicious activity by flagging modules loaded from non-standard directories, kldload processes spawned by untrusted parent processes (like web servers, shells, or scripts), and instances where the process was invoked with sudo/su by non-root users.
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