Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
839 detections
Filters
Last updated
All Time
Detection languages
438
190
77
62
40
Contributors
120
114
72
71
68
Categories
464
233
193
152
122
Platforms
288
274
154
88
56
Products / Services
220
169
162
90
76
MITRE Techniques
18,116
15,638
12,587
8,397
6,227
839
CVEs
6
5
5
5
5
IDS Classtypes
4
2
IDS Protocols
1
Detects scenarios where a suspicious group membership is changed.
Detects scenarios where a suspicious group membership is changed.
Detects when new credentials are added to an Entra ID Service Principal, followed by a successful login from that principal within a short time frame. This pattern is consistent with MURKY PANDA TTPs for lateral movement and persistence in cloud environments.
This rule detects changes to privileged roles and group memberships within Azure Active Directory. It helps identify potential unauthorized privilege escalation, supports compliance and audit requirements, and allows correlation of identity changes with suspicious activity or alerts. The rule specifically looks for operations such as adding/removing members from roles or groups, and updating role memberships or user details, ensuring the operation was successful.
This detection specifically flags credentials being added to the Connect Sync Application in Entra ID, a technique known to have persistance from On-premise AD DS to Entra ID. It tries to look at both certificate, client secret, and federated credentials being added, and tries to remove legitimate renewal processes. Since the legitimate renewal process first adds a new certificate only te remove the old one short after, we by default allow for a maximum of 1 minute between the certificate create and delete events.
This detection flags any changes happening on the Connect Sync Application in Entra ID. Since this is a very interesting account for attackers to abuse when moving laterally between AD DS and Entra ID, any change to the account should be investigated. We try to exclude legitimate certificate renewal processes, and a new account onboarding in the detection rule.
Detects when a Group Policy Object (GPO) is modified to include Client-Side Extensions (CSEs) for managing local group memberships or user rights assignments. While this can be a legitimate administrative action, attackers can abuse this capability to escalate privileges by adding accounts to sensitive local groups (e.g., Administrators) or granting powerful user rights. This alert serves as an early warning to investigate the specific changes made within the GPO.
Detects the simultaneous modification of 'msDS-ManagedAccountPrecededByLink' and 'msDS-DelegatedMSAState' attributes on a delegated Managed Service Account (dMSA) object. This activity is a strong indicator of the BadSuccessor privilege escalation technique, where an attacker simulates a dMSA migration to impersonate a target account.
The following analytic identifies the addition and quick deletion of a Service Principal Name (SPN) to a domain account within 5 minutes. This detection leverages EventCode 5136 from the Windows Security Event Log, focusing on changes to the servicePrincipalName attribute. This activity is significant as it may indicate an attempt to perform Kerberoasting, a technique used to crack the cleartext password of a domain account offline. If confirmed malicious, this could allow an attacker to gain unauthorized access to sensitive information or escalate privileges within the domain environment.
This analytic detects the addition of a Service Principal Name (SPN) to a domain account. It leverages Windows Event Code 5136 and monitors changes to the servicePrincipalName attribute. This activity is significant because it may indicate an attempt to perform Kerberoasting, a technique where attackers extract and crack service account passwords offline. If confirmed malicious, this could allow an attacker to obtain cleartext passwords, leading to unauthorized access and potential lateral movement within the domain environment.
This rule detects when a user is added to an administrative or management role in Azure Active Directory outside of defined business hours. It specifically looks for 'Add member to role completed' or 'Add app role assignment grant to user' operations where the target role contains 'admin' or 'Manage', and the event occurs outside of the configured business hours (7 AM to 6 PM local time, Monday to Friday).
This rule detects suspicious device registration activity in Azure Active Directory (now Entra ID). Specifically, it looks for a sequence of two events: first, a 'Device Registration Service' adding a device with 'CloudAccountEnabled' set to true and a specific Windows build number (10.0.19041.928) in the user agent, followed by an attempt to add registered users to the device, referencing 'urn:ms-drs:enterpriseregistration.windows.net'. This sequence could indicate an adversary attempting to register a new device to bypass conditional access policies or gain persistent access.
Detects activity related to exploitation of Ivanti Connect Secure vulnerabilities (CVE-2025-0282, CVE-2025-22457) using MDifyLoader, Cobalt Strike, vshell, DslogdRAT, and Fscan. Includes file, process, and network-based IOCs from JPCERT report.
The following analytic detects when a Duo policy is created or updated to allow the use of outdated Java versions, which can introduce significant security risks. It works by searching Duo administrator activity logs for policy creation or update actions where the policy explicitly sets 'java_remediation' to 'no remediation', indicating that no restrictions are enforced against old Java. The analytic aggregates relevant details such as the user, admin email, and action context for further investigation. Identifying this behavior is critical for a Security Operations Center (SOC) because allowing outdated Java can expose an organization to known vulnerabilities, malware, and exploitation techniques. Attackers or malicious insiders may attempt to weaken security controls by modifying policies to permit insecure software, increasing the risk of compromise. Prompt detection enables SOC analysts to respond quickly, revert risky changes, and mitigate potential threats before they are exploited.
This rule detects attempts to modify the local Administrators group using the 'net localgroup administrators' command. This command is often used by adversaries to add users to the local administrators group for privilege escalation or persistence.
This detection identifies the creation, deletion, or modification of a local user account on an ESXi host. This activity may indicate unauthorized access, indicator removal, or persistence attempts by an attacker seeking to establish or maintain control of the host.
This detection identifies when a user is granted the Administrator role on an ESXi host. Assigning elevated privileges is a critical action that can indicate potential malicious behavior if performed unexpectedly. Adversaries who gain access may use this to escalate privileges, maintain persistence, or disable security controls.
KQL Query
KQL Query from file: Microsoft Entra Identity Attack Threat Detection
KQL Query from file: Sentinel UEBA Privilege Escalation Detection
KQL Query from file: Malicious FIDO2 Registration Threat Detection
Page 32 of 40