Detections

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

1,733 detections

This rule detects instances where a user account performs a password update without any preceding or associated account verification events (such as email verification, reset requests, or action execution) within a short timeframe. This behavior can be indicative of account compromise where an adversary modifies credentials for a compromised user account.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
103
This rule monitors the software inventory for outdated versions of the PostgreSQL database server. It identifies installations where the major and minor versions are below the threshold for current security releases (e.g., v18 < 6, v17 < 11, v16 < 15, v15 < 19, v14 < 24). Running outdated software increases the risk of exploitation of known vulnerabilities.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
103
Detects a direct push to the protected 'gnutls_3_7_x' release branch with no associated merge request, bypassing code review even when the pusher's role technically satisfies branch-protection rules.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
Detects a direct push to the protected 'gnutls_3_7_x' release branch with no associated merge request, bypassing code review even when the pusher's role technically satisfies branch-protection rules.
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Arnold Chan@slaz
Defender - KQL
2 months ago
000
Detects a GitLab personal access token used from multiple distinct source IPs or from IPs associated with the leaked gitlab-triage token, inconsistent with expected CI runner infrastructure.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
Detects a GitLab personal access token used from multiple distinct source IPs or from IPs associated with the leaked gitlab-triage token, inconsistent with expected CI runner infrastructure.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
Detects the sensitive project-wide CI/CD variable API_TOKEN being exposed to job scopes other than the gitlab-triage automation job that is its only intended consumer, expanding the blast radius of the credential.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
Detects the sensitive project-wide CI/CD variable API_TOKEN being exposed to job scopes other than the gitlab-triage automation job that is its only intended consumer, expanding the blast radius of the credential.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
Detects the sensitive project-wide CI/CD variable API_TOKEN being exposed to job scopes other than the gitlab-triage automation job that is its only intended consumer, expanding the blast radius of the credential.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
Detects a single GitLab token/account holding Owner-level access across an unusually large number of projects (50+), the standing-privilege condition that turned one leaked token into a 55-project supply-chain exposure.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
Detects forged NDA documents used in Phantom Deal M&A fraud campaign, requiring co-occurrence of impersonated advisory firm branding, secrecy-clause language restricting communication to personal channels, and M&A-fraud-specific wire/payment indicators rather than secrecy-clause phrasing alone
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
Detects GitLab CI job shell commands that redirect the environment to a .tmp file, a pattern identified in the GnuTLS GitLab token leak.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
Detects CI/CD job activity referencing shell commands that redirect the entire environment to a file (e.g. 'env > out.tmp'), the exact pattern that caused a GitLab CI job in the openconnect/ocserv project to dump secrets into a public build artifact, leaking a high-privilege personal access token with Owner access to GnuTLS and 55 other critical projects.
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Arnold Chan@slaz
Defender - KQL
2 months ago
000
Detects CI/CD job activity referencing shell commands that redirect the entire environment to a file (e.g. 'env > out.tmp'), the exact pattern that caused a GitLab CI job in the openconnect/ocserv project to dump secrets into a public build artifact, leaking a high-privilege personal access token with Owner access to GnuTLS and 55 other critical projects.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
Detects anomalous access to Microsoft 365 services (OneDrive, SharePoint, Mail) where the user activity is characterized by a high volume of operations (more than 30) across a diverse set of objects (more than 15) within a one-hour window. The detection focuses on activity originating from specific common automation/scripting User-Agents (Microsoft Graph, Python httpx/requests) that deviate from typical, focused service account behavior.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
101
Detects unauthenticated execution of sensitive Grafana MCP tools (tools/call, grafana_api_request) by identifying session IDs that lack a corresponding authenticated handshake event. This behavior is indicative of potential session spoofing or abuse of the MCP protocol where an attacker attempts to interact with privileged tools without performing a valid authentication handshake.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects incoming Grafana API requests directed at vulnerable mcp-grafana server instances identified by an outdated version (pre-1.1.0). This rule correlates host-level version discovery with application-layer logs containing suspicious 'grafana_api_request' method calls, which may indicate an attempt to exploit Server-Side Request Forgery (SSRF) vulnerabilities.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
002
Detects instances where unauthenticated users or sessions execute privileged 'tools/call' operations within the Grafana MCP dispatcher. This behavior is indicative of potential session spoofing attacks, specifically targeting vulnerabilities similar to CVE-2026-19516, where lack of an Authorization header allows unauthorized access to privileged tool functions.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
002
Detects instances of an mcp-grafana server responding with an HTTP 200 status code to a 'tools/call' request without an Authorization header, indicating potential unauthenticated remote tool execution on a vulnerable or misconfigured server.
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Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects the presence of the 'X_TRACE_' marker within Magento report files or system logs, which is characteristic of the StyleSmuggler threat actor's method of poisoning log files to facilitate subsequent code execution.
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Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects cloud application events originating from suspicious or specific User-Agent strings, including 'python-requests' and identified outdated or potentially spoofed Chrome versions (146, 150, 151.0.0). This behavior often correlates with automated scripts or bot activity interacting with cloud services.
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Ankit Mehta@Secvyn
Defender - KQL
2 months ago
000
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