Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
507 detections
Filters
Last updated
All Time
Detection languages
247
92
78
48
19
Contributors
141
113
53
46
41
Categories
20,443
11,831
5,872
5,155
4,866
Platforms
210
138
110
82
78
Products / Services
147
74
62
41
28
MITRE Techniques
243
128
69
68
55
CVEs
10
9
5
5
5
IDS Classtypes
4
IDS Protocols
4
Detects unauthorized changes to sensitive payroll information (such as bank accounts or direct deposit details) or suspicious inbox rule creations within Microsoft 365 or HR SaaS environments that occur immediately following anomalous authentication activity. The rule targets indicators of AiTM (Adversary-in-the-Middle) session hijacking, such as unusual user agents, unmanaged device usage, or potential token reuse.
Detects when the default SMS application on an Android device is changed to an application that is not recognized as a trusted SMS provider. This behavior is often indicative of malicious applications attempting to intercept incoming SMS messages, such as those containing multi-factor authentication (MFA) codes, by positioning themselves as the system's primary handler for SMS communications.
Detects the creation or modification of '.config' or '.exe.config' files within commonly user-writable directories such as AppData, Temp, Downloads, or Desktop. These files are often used by .NET applications to define behavior, and attackers may manipulate them to perform activities such as assembly redirection, loading malicious DLLs, or altering security settings for elevated processes.
Detects the Miasma worm propagating through CI/CD pipelines by identifying unauthorized updates to GitHub Actions workflow files. Specifically monitors for modifications to workflows under the LeoPlatform or LeoInsights projects by the compromised user 'czirker', with signs of weaponization such as the addition of OIDC id-token write permissions and npm-publish capabilities.
Detects the presence or installation of known malicious Adblock for YouTube browser extensions. These extensions are flagged for utilizing overly broad host permissions (e.g., <all_urls>) in conjunction with webRequest and scripting capabilities, which facilitates cross-site data collection, potential session hijacking, and the injection of malicious remote scripts.
Detects credential abuse patterns from FortiGate logs including administrative changes, tunneling activity, and anomalous source-IP behavior.
This rule detects administrative changes to Cisco SD-WAN environments, including policy pushes, template attachments, device onboarding, and tunnel modifications. It uses a risk-scoring mechanism based on the type of change and whether the activity occurs outside of standard business hours (06:00 to 22:00). High-risk events (score >= 65) trigger an alert, highlighting potential unauthorized infrastructure modifications or malicious device insertion.
Detects the modification of sensitive banking or payment election records (e.g., direct deposit details) in Workday or similar HR SaaS platforms shortly after a user login event from the same source IP. This behavior is consistent with 'Payroll Pirate' style attacks where adversaries use stolen session tokens (via AiTM phishing) to redirect employee salary payments.
Detects when the default SMS application on an Android device is changed to an application that is not recognized as a trusted SMS provider. This behavior is often indicative of malicious applications attempting to intercept incoming SMS messages, such as those containing multi-factor authentication (MFA) codes, by positioning themselves as the system's primary handler for SMS communications.
This rule detects the execution of the squid.exe process where the command line does not explicitly specify a configuration file using the '-f' or '-n' flags, nor does it reference 'squid.conf'. Running Squid without a defined configuration file may lead to the application loading default, insecure, or unintended settings, which could be exploited as part of a vulnerability chain or misconfiguration.
Detects OAuth application registration or permission grant via Graph API
This rule detects the execution of the squid.exe process where the command line does not explicitly specify a configuration file using the '-f' or '-n' flags, nor does it reference 'squid.conf'. Running Squid without a defined configuration file may lead to the application loading default, insecure, or unintended settings, which could be exploited as part of a vulnerability chain or misconfiguration.
Detects OAuth application registration or permission grant via Graph API
Detects new app installations, expansions of OAuth scopes, or the addition of collaborators to Slack applications. These activities can indicate an adversary attempting to establish persistent access, escalate privileges, or exfiltrate data from Slack by leveraging malicious or compromised applications.
This rule alerts when edge router settings change outside an approved maintenance window. Surprise config changes can redirect traffic or weaken security controls. Confirm change tickets and the engineer responsible. Ask the person who used the computer whether they installed new software or clicked a link, and involve your security team if the answer is unclear.
Detects the configuration change that enables the 'external rest endpoint' feature in SQL Server 2025. Threat actors can abuse this feature using sp_invoke_external_rest_endpoint to natively exfiltrate data and establish C2 channels.
Detects when OAuth applications are added to trusted lists or granted Context-Aware Access (CAA) exemptions within Google Workspace. This activity bypasses user consent screens and CAA policies, potentially allowing malicious applications to gain unauthorized access. The rule also tracks permission escalation for existing applications via 'CHANGE_APP_ACCESS' events.
Detects when an application is published or updated in the Microsoft Teams app catalog. This activity could indicate malicious app deployment, supply chain tampering via catalog abuse, or unauthorized application changes.
Detects when secret scanning rule is deleted for the project or repository.
Detects Bitbucket global secret scanning rule deletion activity.
Detects when a user disables a critical security feature for an organization.
Page 18 of 25