Detections

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

2,146 detections

Detects the VSCode executable making direct web requests to the GitHub API. This may indicate a malicious extension exfiltrating or validating stolen OAuth tokens, as demonstrated in the 1-click GitHub Dev/VSCode webview attack.
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Duo Tech@duotech
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Detections.ai Community
4 months ago
0015
Detects outbound network connections to 'stitch-design.ai' or 'stitch-google.com', which are identified as malicious domains utilized by a compromised AI agent skill. This skill attempts to bypass security vetting by dynamically fetching its instructions from these attacker-controlled external domains post-installation.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
This rule detects network communication with infrastructure associated with the 'EvilTokens' phishing kit, specifically targeting Microsoft OAuth device code API endpoints (/api/device/*) hosted on workers.dev. This behavior is indicative of an adversary conducting device code phishing (a form of AitM attack) to obtain unauthorized access tokens.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects use of Discord webhooks for covert C2 or data exfiltration
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Darshan Thummar@Mighty
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Detections.ai Community
4 months ago
2013
This rule detects network requests for specific URI paths and filenames ('css.js' or 'cf.js') known to be used by the ErrTraffic malware distribution framework for delivering ClickFix payloads. It identifies potential command and control (C2) infrastructure by grouping requests based on client IP, source IP, domain, destination IP, and URL.
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Thiru N@Iamthiru
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Detections.ai Community
4 months ago
209
This rule detects network connections to a specific destination port (37393), a known malicious IP address (62.102.148.212), or a dynamic DNS hostname (acceic.ddns.net). These indicators are often associated with command and control (C2) infrastructure used by adversaries.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects unauthorized or external access attempts to exposed Ollama API endpoints (port 11434) for generating or chatting, which could be indicative of LLMjacking. The rule identifies requests from known attacker IPs or any external IP, especially if the request count is high.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects HTTP GET requests for JavaScript or CSS resources from netdna-ssl.com or wpengine.netdna-ssl.com subdomains. This activity could indicate a supply chain compromise where malicious code is injected into legitimate web resources served from these content delivery networks.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects outbound network connections to 'filev2.getsession.org', a known Miasma payload hosting and exfiltration domain. This domain has been associated with Miasma malware for command and control and data exfiltration activities.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
008
Identifies network attempts to communicate with the vulnerable AutoGen Studio MCP WebSocket endpoint using the exploited server_params parameter, indicating potential exploitation of the AutoJack vulnerability.
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Ethan Andrews@eandrews
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Federal Signal Detections
4 months ago
206
Detects Node.js initiating network connections over port 2222. This activity is associated with the Miasma botnet, which uses port 2222 as a fallback C2/SSH channel when standard ports are blocked.
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nomit vyas@xoxo
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Detections.ai Community
4 months ago
003
Detects potential port scanning activity originating from a Squid proxy server targeting FTP (port 21). This rule identifies instances where a Squid process attempts to connect to port 21 on multiple remote IPs within a one-hour window, which could indicate reconnaissance or malicious activity.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
001
This rule detects potential session token leakage through network proxy responses. It specifically looks for network events where the action type is 'NetworkSignatureInspected', the remote port is 21 (commonly FTP), and the remote URL contains keywords indicative of session tokens such as 'session', 'cookie', 'JSESSIONID', 'PHPSESSID', or 'ASP.NET_SessionId'. This could indicate a vulnerability where session information is inadvertently exposed in proxy logs or network traffic.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
001
Detects potential port scanning activity originating from a Squid proxy server targeting FTP (port 21). This rule identifies instances where a Squid process attempts to connect to port 21 on multiple remote IPs within a one-hour window, which could indicate reconnaissance or malicious activity.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
001
This rule detects the creation of a '.pkg_history' file, which is a known indicator of the Mastra NPM supply chain compromise, followed by a network connection to specific command and control (C2) IP addresses (23.254.164.123 or 23.254.164.92) within a 5-minute window on the same device. This correlation aims to identify successful exploitation and subsequent C2 communication by the Mastra NPM malware.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
004
This rule detects email events where the sender's domain fails basic DNS resolution, indicating it might be non-existent or invalid, but the email successfully bypasses authentication due to SPF macros. This could be an attempt to spoof emails from non-existent domains while still appearing legitimate to email authentication checks.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
002
Detects a click originating from a legitimate email or marketing redirection service and ending on a page that requests enterprise credentials. This behavior is indicative of a phishing attempt where an adversary leverages trusted email services to redirect users to a credential harvesting site.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
4 months ago
002
Detects a module changing protocol, destination class, or cloud service after repeated failed connections on its primary channel. This behavior is indicative of malware like Kazuar attempting to establish C2 communication through alternative means when its initial attempts fail.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
4 months ago
102
Detects a persistent process creating similarly sized outbound transfers at regular intervals after staging local results, indicative of the Kazuar malware's exfiltration behavior. The rule identifies processes with significant outbound network traffic (bytes > 10000), aggregates this traffic over 15-minute intervals, and then looks for processes that exhibit consistent outbound activity with intervals between 10 and 20 minutes (600 to 1200 seconds).
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Daniel Jeremiah@daniyyell
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Detections.ai Community
4 months ago
002
Detects HTTP POST requests directed to /V1/Update/GetUpdate, indicative of the OceanLotus downloader retrieving the next-stage payload (SPECTRALVIPER).
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Kaung Khant Ko@kaungkhantko
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Detections.ai Community
5 months ago
1026
Detects anomalous outbound network connections originating from the Python/vLLM process to irregular ports or cloud metadata IPs. This behavior may indicate command-and-control establishment, secondary staging, or cloud metadata pivoting following a successful CVE-2026-22778 exploit.
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Ethan Andrews@eandrews
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Federal Signal Detections
4 months ago
204
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