Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects Microsoft Device Code grant type authentications in Entra ID sign-in logs, consistent with the EvilTokens phishing kit abusing the OAuth device code flow to steal tokens without capturing passwords. Flags DeviceCode protocol sign-ins from browser-based clients, which is atypical for legitimate device code usage.
This rule detects node.js processes, typically initiated via npm or during package installation scripts, accessing sensitive Claude Code configuration or credential files. This behavior is indicative of a malicious supply chain attack where a compromised npm package attempts to exfiltrate developer authentication secrets.
This rule monitors authentication events across various SaaS platforms (Jira, Okta, Azure AD, Google Workspace, Auth0, OneLogin) to detect suspicious activity. It calculates a risk score based on indicators such as impossible travel, high volume of distinct source IPs or geographic locations, and anomalous user agent activity, flagging sessions that exceed a defined risk threshold.
This rule detects when sharing inheritance settings are modified in SharePoint. This could indicate an attempt to broaden access to sensitive information, a misconfiguration, or an attacker attempting to maintain access or exfiltrate data.
This rule detects multiple (3 or more) logon attempts using the 'RunAs' feature (Event ID 4648) for accounts containing 'Admin' or 'SYSTEM' in their username within a one-hour window. This could indicate an adversary attempting to escalate privileges or execute code as a privileged user.
Detects Azure Privileged Identity Management (PIM) role activations that occur outside of standard business hours (before 07:00 or after 19:00 UTC, or on weekends) or involve high-privilege roles (e.g., Global Administrator, Privileged Role Administrator, Security Administrator).
Detects instances where a user grants an OAuth application permissions for high-privilege scopes such as 'mail.read', 'files.readwrite', or 'offline_access'. This behavior is frequently indicative of OAuth consent phishing campaigns targeting Microsoft Entra ID environments to gain unauthorized access to user data and maintain persistence via stolen access tokens.
Detects Node.js executing the malicious setup.cjs script or easy-day-js with the --no-warnings flag, associated with the Mastra npm supply chain compromise.
This rule monitors Microsoft Entra ID (Azure AD) sign-ins for indicators associated with the 'Payroll Pirate' campaign. It identifies non-interactive OAuth/token-based authentication requests originating from residential Internet Service Provider (ISP) ASNs using devices marked as unmanaged. It further elevates risk by detecting impossible travel (same user accessing from multiple IPs in a short window) and the use of specific browser User-Agent strings (Firefox or Axios) characteristic of the threat actor's tooling.
Detects a suspicious sequence where 7-Zip is used to extract a RAR archive, immediately followed by the creation of executable files (.exe, .bat, .cmd, etc.) in common user-writable directories. This chain often indicates an attempt to bypass Mark-of-the-Web (MotW) protections, as files extracted by archive tools may not inherit the MotW zone information, allowing potentially malicious files to execute without security prompts.
Detects anomalous application crashes of network-oriented utilities (curl, git, sftp, etc.) that leverage libssh2. This pattern is indicative of a heap over-read vulnerability, such as CVE-2025-15661, triggered by a malicious SFTP server response during an outbound session.
Detects network activity and successful administrative logins to Cisco SD-WAN vManage devices originating from IPs associated with threat actor UAT-8616. The rule also flags any successful vmanage-admin logins originating from outside known trusted management network ranges, which may indicate exploitation of CVE-2026-20127 or CVE-2026-20182.
Detects a suspicious sequence of events where a user successfully authenticates via SSH to a Cisco SD-WAN Manager (vManage) using the 'vmanage-admin' account, followed by REST API calls to enumerate device inventory (vedges or controllers) from the same source IP within 30 minutes. This behavior is indicative of potential post-exploitation activity or reconnaissance associated with the UAT-8616 campaign.
This query detects multiple TTPs associated with the Storm-2561 campaign that uses SEO poisoning to distribute fake VPN clients for credential theft. It looks for known file hashes, a specific code-signing certificate, malicious DLL side-loading and C2 communication patterns.
This rule detects when users access or download suspicious file types (specifically .xlsm, .docm, or .ics) from Microsoft SharePoint, Teams, or Exchange, where the filenames contain keywords associated with common phishing lures such as credentials, invoices, payroll, or password resets. This monitors for indicators of potential spearphishing attempts involving malicious documents or calendar invites within the M365 environment.
Detects successful SSH authentication to administrative accounts ('vmanage-admin' or 'admin') on Cisco Catalyst SD-WAN Manager (vManage) devices originating from IP addresses associated with the threat actor UAT-8616. This activity relates to exploits targeting CVE-2026-20127 and CVE-2026-20182 for unauthorized access via authentication bypass or certificate abuse.
Detects the unauthorized addition or peering of rogue devices within a Cisco SD-WAN fabric. This rule monitors vManage and vBond logs for successful peering or registration events that correlate with known rogue indicators, such as certificate validation failures, mismatching system information, or untrusted peer identities. This activity is often indicative of attackers attempting to gain persistent control over the SD-WAN infrastructure, potentially using authentication bypass vulnerabilities or stolen credentials.
Detects inbound HTTP POST requests directed at the /SDK/webLanguage path, which is known to be vulnerable to command injection via CVE-2021-36260 in Hikvision IP cameras.
Detects anomalous activities targeting SaaS CRM applications (Salesforce, Microsoft Dynamics 365, HubSpot), including high-volume bulk exports, off-hours access, mass API queries for sensitive objects, and suspicious OAuth token grants.
Detects the execution of cmd.exe originating from the Remote Mouse or Peyara service process, correlating with an immediately preceding unauthenticated network connection on TCP port 1313. This behavior is indicative of exploitation of a remote service vulnerability, often associated with the Peyara Remote Mouse remote code execution exploit.
Detects phishing emails containing specific Latin placeholder text artifacts, commonly generated by the Faker library, which are often indicative of unconfigured or template-based phishing kits embedded within email bodies or attachments.
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