Detections

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

576 detections

Detects anomalous, unauthenticated access to API endpoints commonly associated with table enumeration, often targeting ServiceNow interfaces or similar REST APIs. The rule monitors for a high volume of unique API paths or tables requested by a single IP address without an authorization token present, as well as tracking access from known malicious IP addresses.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects attempts to bypass URL validation and access sensitive GCP metadata endpoints (169.254.169.254 or metadata.google.internal) using a double-slash (//) prefix injection pattern within URL parameters. This technique is often used in Server-Side Request Forgery (SSRF) attacks to read local resources or metadata credentials from Cloud Run or other GCP compute services.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects Server-Side Request Forgery (SSRF) attempts directed at the Google Cloud Platform (GCP) instance metadata service endpoints. The rule monitors HTTP request logs from proxies or web servers, identifying requests that contain suspicious metadata hostnames or IP addresses combined with sensitive API paths typically used for exfiltrating cloud instance identity tokens.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects web traffic where the referrer header contains keywords associated with gaming or educational themes (such as 'bioshock', 'game', 'puzzle', 'math', 'quiz') combined with access attempts to sensitive URI paths (like '/code', '/token', '/secret', '/private', '/api-key') resulting in a redirect status (301-308). This behavior pattern is often indicative of automated reconnaissance or exploitation attempts using non-standard or obfuscated referrers to bypass simple security filters.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
001
Detects HTTP responses containing JavaScript files larger than 1 MB, which is a signature behavior of the Bluekit PhaaS platform. This technique involves serving periodically rotated, obfuscated JavaScript bundles to evade static hash-based detection mechanisms.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
005
Detects instances where common web server processes initiate command interpreters or system utilities. This behavior is a common indicator of web shell execution, where an adversary uses a web application vulnerability to gain remote code execution on the underlying server.
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Ankit Mehta@Secvyn
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Detections.ai Community
4 months ago
001
This rule detects a high volume (50 or more) of HTTP errors (status codes 400 and above) originating from a single client IP address within a 5-minute time window. This behavior can be indicative of various malicious activities such as brute-force attacks, web application vulnerability scanning, or denial-of-service attempts against a web server.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
001
Detects HTTP POST requests directed at PHP script endpoints with randomized 16-32 character hexadecimal filenames, which is a known C2 communication pattern used by the StealC infostealer.
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Duo Tech@duotech
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Detections.ai Community
4 months ago
101
This rule monitors network traffic for suspicious patterns indicating exploitation of LocalStack environments. It detects three primary malicious activities: Velocity Template Language (VTL) injection targeting reflection methods (e.g., ProcessBuilder) for RCE; unauthorized manipulation of API Gateway resources (e.g., creating or modifying deployments) accompanied by IAM scope bypass techniques; and direct execution of RCE-style API triggers against known LocalStack port 4566.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects the creation of files on web servers matching known Neo-reGeorg web shell tunnel variants. These files are typically used as backdoors to tunnel traffic and provide persistent access to the server.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
004
Detects high-volume credential stuffing attacks targeting the WordPress 'wp-login.php' endpoint. The rule monitors for multiple geographically distinct source IP addresses submitting HTTP POST requests to the login page within a 2-minute window. It specifically identifies traffic patterns associated with common infostealer-harvested credential campaigns (such as Vidar, Stealc, or DanaBot) by matching a specific User-Agent string associated with the campaign.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
105
Detects a potential privilege escalation attempt in MyBB where a user with limited Administrator Control Panel (ACP) permissions modifies a user account to join the 'Administrator' group (ID 4) by POSTing to the 'user-users' module.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
Detects execution of MyBB exploitation scripts, specifically targeting the 'mybb_limited_acp_to_admin' PoC, or evidence of a web server process (PHP) spawning suspicious shell or interpreter child processes, suggesting post-exploitation activity on a MyBB platform.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
101
Detects unauthorized attempts by a non-super-administrator user within the MyBB Admin Control Panel to assign the administrator group (usergroup=4) to a new or existing user, exploiting a privilege boundary bypass.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
001
This rule detects potential remote code execution (RCE) exploitation targeting PHP 8.5.7 via the StreamBucket SOAP deserialization vulnerability. It monitors for PHP-related parent processes spawning suspicious child processes (e.g., shells, network utilities, or specific exploit strings) that indicate unauthorized system command execution.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
101
Detects HTTP POST requests directed to /V1/Update/GetUpdate, indicative of the OceanLotus downloader retrieving the next-stage payload (SPECTRALVIPER).
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nomit vyas@xoxo
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Detections.ai Community
4 months ago
005
Detects a single host serving materially different status codes, body sizes, or redirects to automated user agents (bots, crawlers, scanners, curl, wget, headless browsers, python, go-http) compared to normal browsers. This behavior can indicate an Adversary-in-the-Middle (AiTM) attack where the adversary is attempting to serve different content to different user agents to evade detection or deliver malicious payloads.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
4 months ago
1010
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.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
107
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.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
007
Detects network connections attempting to exfiltrate data via Discord webhooks. This rule specifically looks for POST requests to the Discord API webhook endpoint.
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nomit vyas@xoxo
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Detections.ai Community
4 months ago
104
Detects many unique, high-entropy URL paths that each receive a small number of requests before redirecting to authentication. This behavior is indicative of adversaries like Volt Typhoon (Tycoon) using one-time session paths for each victim in phishing campaigns.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
4 months ago
208
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