Detections

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

2,982 detections

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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Midnight Slayer
2 months ago
001
Detects high-value wire transfers (>= €600,000) directed to beneficiaries in Hong Kong that contain suspicious memo or description fields related to confidential acquisitions or professional service retainers, potentially indicating business email compromise (BEC) or fraudulent financial activity.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
Detects high-value wire transfers (>= €600,000) directed to beneficiaries in Hong Kong that contain suspicious memo or description fields related to confidential acquisitions or professional service retainers, potentially indicating business email compromise (BEC) or fraudulent financial activity.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
001
Detects potential Business Email Compromise (BEC) related to 'Phantom Deal' fraud. The rule identifies email threads where a user receives an urgent request for proof of payment (MT103/UETR) within 72 hours of an email discussion involving both wire transfer/payment keywords and M&A/deal context.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
Detects potential Business Email Compromise (BEC) related to 'Phantom Deal' fraud. The rule identifies email threads where a user receives an urgent request for proof of payment (MT103/UETR) within 72 hours of an email discussion involving both wire transfer/payment keywords and M&A/deal context.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
001
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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Midnight Slayer
2 months ago
001
Detects potential Server-Side Request Forgery (SSRF) attacks targeting Grafana instances. The rule identifies suspicious 'grafana_api_request' calls that occur shortly after an unauthenticated discovery call ('tools/call') within the same session, where the target URL in the request header is not included in a defined allowlist of known internal Grafana hosts.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
Detects sessions using shared Grafana service account tokens that perform both read-only and action-capable tool operations without confirmed prior authentication. This behavior is indicative of an unauthenticated or spoofed session leveraging a service account's excessive permissions, bypassing standard authentication flows.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
This rule monitors Office 365 SharePoint file operations and search queries for patterns indicative of automated discovery and exfiltration of sensitive content. It specifically identifies high-frequency search queries involving wildcard parameters used in SharePoint content indexing, which may suggest an adversary is systematically crawling or enumerating organizational documents.
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Ankit Mehta@Secvyn
Defender - KQL
2 months ago
001
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
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Detection & Hunting Community
2 months ago
201
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
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SlimKQL
2 months ago
001
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
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Detections.ai Community
2 months ago
101
Detects anomalous, high-volume access to email items or attachments in Microsoft Exchange Online by a single account from a single IP address, which may indicate account compromise, unauthorized mail harvesting, or data exfiltration.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
101
Detects interaction with known infrastructure associated with the PREY-0058 campaign, which utilizes Adversary-in-the-Middle (AiTM) phishing lures mimicking passkey or MFA registration pages to target Microsoft 365 and other SaaS applications.
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Ankit Mehta@Secvyn
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Detection & Hunting Community
2 months ago
001
This rule detects potentially unauthorized access to cloud resources or OAuth applications by identifying sign-ins or API calls originating from IP addresses or locations not previously observed for the user in the 30 days prior to a documented Coder registry compromise exposure window.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
Detects anomalous actions within the Coder registry, such as template creation, version updates, or dry-run/workspace builds with module caching disabled, that occurred during a known registry compromise window on August 31, 2026.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects sessions using shared Grafana service account tokens that perform both read-only and action-capable tool operations without confirmed prior authentication. This behavior is indicative of an unauthenticated or spoofed session leveraging a service account's excessive permissions, bypassing standard authentication flows.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
004
This rule monitors for successful sign-ins to sensitive cloud resources (such as Microsoft Authentication Broker, Office 365 Exchange Online, or Graph API) that originate from IP addresses not observed in the user's recent history (14-day baseline) or from known datacenter/hosting network ranges. The rule also filters for common scripted User-Agent strings (e.g., Python requests, curl) or empty User-Agent strings to increase the likelihood of detecting programmatic or malicious automated access rather than standard browser-based user activity.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
2 months ago
208
Detects anomalous unauthenticated password reset requests targeting the Keycloak reset-credentials endpoint. The rule monitors for high-volume password reset attempts from single source IP addresses, specifically flagging those that target common administrative usernames or attempt to reset passwords across multiple distinct user accounts, which may indicate exploitation attempts (e.g., CVE-2026-18963).
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Arnold Chan@slaz
Defender - KQL
2 months ago
005
Detects changes to Keycloak realm configurations that enable the 'Forgot password' (resetPasswordAllowed) setting. This specific configuration change is associated with temporary mitigation strategies for CVE-2026-18963 on known-vulnerable versions of Keycloak.
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Arnold Chan@slaz
Defender - KQL
2 months ago
005
Detects changes to Keycloak realm configurations that enable the 'Forgot password' (resetPasswordAllowed) setting. This specific configuration change is associated with temporary mitigation strategies for CVE-2026-18963 on known-vulnerable versions of Keycloak.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
105
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