Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

3,651 detections

Detects DNS requests originating from endpoints targeting the 'adblock-for-youtube.com' domain. This activity may be associated with browser extensions that exhibit unexpected or potentially unwanted network behavior.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
001
Detects credential and session data exfiltration by browsers communicating with Bluekit PhaaS-associated domains or Telegram API webhooks. The rule filters network traffic originating from common web browsers to known malicious domains associated with Bluekit infrastructure or to the public Telegram API for automated exfiltration.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
001
Detects the execution of Node.js processes associated with hijacked npm packages 'html-to-gutenberg' and 'fetch-page-assets'. The rule monitors for 'node' or 'node-gyp' processes spawned in conjunction with command-line arguments or file paths referencing these specific malicious packages, which are known to use binding.gyp command expansion for unauthorized code execution.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
001
Detects HTTP requests initiated by common browser adblock extensions to remote API endpoints for retrieving rule configuration files. This behavior can be exploited by adversaries to perform remote scriptlet injection or change extension behavior via server-side updates, potentially enabling unauthorized JavaScript execution in the browser's context.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
001
Detects the execution of a malicious npm package (scope squatting on @withgoogle/stitch-sdk) that runs a preinstall script designed to harvest sensitive credentials (Claude, Git, SSH, GitHub, npm, Docker) and exfiltrate them to the domain 'stitch-production.org'.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
001
Detects the presence of known malicious browser extensions by their extension ID or extensions that declare overly permissive host access ('<all_urls>') in combination with suspicious naming conventions associated with common ad-blocking malware.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
001
This rule detects network activity associated with known malicious browser extensions identified as 'AdBlock' variants. It monitors for connections to the domain 'api.adblock-for-youtube.com' or requests to '/api/v2/rules' made by specific extension IDs that are known to perform unauthorized or suspicious activities.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
001
Detects execution of native Go binaries associated with the Overlord C&C framework (UNK_DeadDrop). The detection logic specifically looks for process events where the filename starts with 'google-update-support-' and contains either 'amd64' or 'arm64', indicating architecture-specific binaries.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
007
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.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
4 months ago
102
Detects the use of 'curl' to download content that is then directly piped to a shell interpreter (bash, sh, zsh). This technique is often used for fileless execution, where a malicious script is executed without being written to disk, as noted in the context of initial Miasma stages.
avatar
Ibrahim Saud@tektrix
avatar
Detections.ai Community
5 months ago
5011
Detects command line activity indicative of an attempt to access or extract browser-related files such as 'Cookies' or 'Local State', which are commonly associated with session theft or credential harvesting from major web browsers like Chrome, Firefox, Edge, and Safari.
avatar
Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
001
Detects command lines that reference known supply chain attack targets or commonly used package management tools like npm and pypi, which can be indicators of supply chain compromise.
avatar
Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
001
This rule monitors process command line arguments for a combination of programming language interpreters (java, python, node, .NET, go) and keywords commonly associated with malware, payloads, shellcode, or injection techniques. This is intended to identify suspicious execution patterns that may indicate the staging or execution of malicious code.
avatar
Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
001
Detects outbound network connections to remote URLs containing keywords associated with blockchain, cryptocurrency, or Web3 technologies. This behavior may indicate an adversary utilizing blockchain services or decentralised infrastructure for command and control (C2) communication, exfiltration, or proxying.
avatar
Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
101
This rule detects command-line activity that searches for sensitive information within browser extension storage, specifically targeting data related to cryptocurrency wallets, password managers, or authenticator applications. It looks for commands executed by common interpreters like cmd, PowerShell, or Python that include keywords associated with extensions and sensitive data like 'wallet', 'metamask', 'password', 'authenticator', '2fa', or 'crypto'. The rule is designed to provide causality and actor information for investigation.
avatar
Daniel Jeremiah@daniyyell
avatar
Detections.ai Community
4 months ago
106
This rule detects attempts by non-browser processes to access sensitive Chromium-based browser files such as 'Login Data', 'Cookies', 'History', 'Web Data', and 'Local State'. These files often contain credentials, browsing history, and other sensitive user data. The rule specifically filters for file access events where the accessing process's command line does not match known browser executables (chrome.exe, msedge.exe, brave.exe, opera.exe, vivaldi.exe), indicating potential credential theft or data exfiltration by malicious software.
avatar
Daniel Jeremiah@daniyyell
avatar
Detections.ai Community
4 months ago
106
Detects the execution of processes with command line arguments containing terms related to quantum-resistant or post-quantum cryptography (e.g., lattice, isogeny, multivariate, hash). This is intended to identify the usage of specific cryptographic libraries or tools that may be relevant for advanced adversaries researching post-quantum decryption techniques or securing their own communications against future quantum-enabled decryption.
avatar
Ankit Mehta@Secvyn
avatar
Detections.ai Community
4 months ago
001
Detects successful outbound network connections to common botnet-associated remote ports (6667, 6697, 8006, 27374, 27375). The rule aggregates these connections by device to identify endpoints communicating with multiple distinct remote IP addresses, a behavior often indicative of botnet participation or command and control activity.
avatar
Ankit Mehta@Secvyn
avatar
Detections.ai Community
4 months ago
101
Detects the execution of processes with command-line arguments containing keywords related to known supply chain attacks (e.g., solarwinds, 3cx, kaseya, npm, pypi). This rule is intended for threat hunting to identify potential exploitation attempts or malicious activity involving software supply chain components.
avatar
Ankit Mehta@Secvyn
avatar
Detections.ai Community
4 months ago
001
This rule detects the execution of specific Node.js scripts (`setup.cjs` or `protocal.cjs`) that are associated with the Mastra npm supply chain attack. It identifies Node.js process executions across Windows, macOS, and Linux, looking for these malicious script names in the command line.
avatar
Thiru N@Iamthiru
CrowdStrike Logscale
5 months ago
6011
Detects behaviors associated with AMOS and Odyssey Stealer, including using osascript to perform anti-analysis checks via system_profiler and terminating OneDrive services to impair defenses.
avatar
nomit vyas@xoxo
avatar
Detections.ai Community
4 months ago
002
Page 132 of 174