Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a suspicious sequence where a new credential (PAT, SSH key, or OAuth authorization) is created and then used to establish durable persistence via webhooks or deploy keys. This behavior typically occurs after an account compromise as an attacker attempts to "lock in" access that survives credential rotation and provides real-time exfiltration of repository data.
Detects the addition of an SSH public key to a GitHub account using programmatic access (Personal Access Tokens, OAuth, or GitHub Apps). Unlike keys added via the Web UI, programmatic creation often bypasses manual verification steps and provides long-lived access that survives password resets and MFA changes. This is a common technique for attackers to establish persistent command line access to repositories.
Detects the creation of a new Personal Access Token (PAT) in GitHub. Attackers frequently create PATs after gaining initial access to an account to maintain persistence that survives a password reset. Tokens with broad scopes (repo, admin:org) allow for full repository exfiltration and administrative manipulation of the organization.
Identifies successful Entra ID sign-ins using the Device Code Flow from a geographic location not seen for that user in the last 30 days. The device code flow involves two separate interactions (the attacker's device and the victim's browser), so a mismatch between the sign-in location and the user's established locations is a strong indicator of a session hijacking attempt.
Detects potential spam campaigns originating from disposable or trial Jira Cloud instances with randomized subdomain names. The rule identifies emails from '.atlassian.net' domains where the subdomain is longer than 12 characters and contains a mix of letters and numbers, indicating a potentially randomized or disposable instance. It then alerts if more than 5 emails with the same subject are sent from such a suspicious subdomain.
Detects the creation or modification of repository webhooks in GitHub. Attackers can use webhooks for real-time data exfiltration of code pushes, pull request comments, and workflow data. Once a webhook is established, it operates independently of the creating user; revoking the creator's credentials will NOT stop the data flow. Only deleting the webhook itself terminates the exfiltration.
Detects incoming emails from Atlassian Jira domains (atlassian.net) that contain suspicious link redirectors or known Traffic Distribution Systems (TDS) like Keitaro. This activity is associated with a campaign where threat actors abuse Jira's trusted domain to send spam and phishing emails.
This rule detects emails originating from Atlassian Jira (specifically the .atlassian.net domain) that contain subject lines associated with a known spam campaign. The campaign uses various lures, including investment scams and online casinos, across multiple languages.
Detects incoming emails from Atlassian Jira Cloud subdomains where the subject line matches known spam patterns used in a campaign abusing the service's reputation.
Detects events that may indicate a user is being enrolled into a Bitwarden organization's account recovery policy under malicious circumstances. As described by researchers, a malicious or compromised server can silently add a user to an attacker-controlled organization and enable an account recovery policy. The victim's client will then encrypt the user's vault key with an attacker-provided public key and upload it, leading to a full vault compromise.
This rule detects emails delivered to an inbox that contain URLs identified as malicious by OpenPhish, indicating a successful phishing attempt or delivery of a known malicious link.
This rule detects instances where users click on URLs from emails that impersonate 'DocMagic'. It specifically looks for emails with 'docmagic' in the sender display name or address, extracts URLs from these emails, and then identifies if any of these URLs were subsequently clicked by users. This indicates a potential successful phishing attempt related to the DocMagic impersonation campaign.
Detects file access or download activity from SharePoint or OneDrive where the user agent is PowerShell. This TTP has been associated with UNC6671 (related to ShinyHunters) for data exfiltration from SaaS applications.
Detects a successful user login from a country that is on a restricted or high-risk list. This can indicate account compromise or policy violation.
Detects a user successfully logging in from multiple different countries within a short time frame (4 hours). This is a strong indicator of account takeover (T1078).
Detects potential fraud: New payment card added, followed by deposit and large withdrawal (>500) within 24 hours
Detects Okta MFA device enrollment or life cycle changes that occur shortly after a successful authentication or password reset for the same user. This pattern is a strong indicator of a post-vishing account takeover, as seen in ShinyHunters campaigns.
Detects when a user authorizes the 'ToogleBox Recall' Google Workspace add-on. This tool has been observed being used by threat actors like UNC6661 (associated with ShinyHunters) to automate the deletion of MFA enrollment notifications, hiding unauthorized device registrations.
This alert identifies a potential bypass of repository governance controls. It triggers when a GitHub repository's default branch is changed and then reverted or updated again within a 24-hour window. By temporarily changing the default branch to an unprotected branch, an actor can push code or merge pull requests to the primary branch (e.g., main) without satisfying mandatory status checks or peer review requirements.
Detects HTTP POST requests to the Appsmith password reset endpoint where the 'Origin' header does not match the expected internal or legitimate application domain. This is indicative of an attempt to exploit CVE-2026-22794 to achieve account takeover.
Detects attempts to exploit the ServiceNow 'BodySnatcher' vulnerability (CVE-2025-12420) by invoking the internal 'AIA-Agent Invoker AutoChat' topic to execute arbitrary AI agents.
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