Rudra Verma
@RudravermaTrusted contributorCompletionist
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108 detections
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Detects anomalous executions of ctfmon.exe that deviate from known-good parent process patterns, such as unexpected parent processes (e.g., script hosts, LOLBins) or execution from locations other than C:\Windows\System32\ctfmon.exe. This rule is designed to help identify potential masquerading or process injection associated with exploitation attempts, including CVE-2026-45586.
Detects successful device code authentication flows from users who have not utilized this authentication method within the past 14 days. This rule monitors Entra ID (Azure AD) sign-in logs and non-interactive logs, enriching results with Intune device compliance data and authentication protocol details to assist in identifying anomalous access patterns that may indicate credential abuse or device-code phishing.
Detects successful device code authentication flows from users who have not utilized this authentication method within the past 14 days. This rule monitors Entra ID (Azure AD) sign-in logs and non-interactive logs, enriching results with Intune device compliance data and authentication protocol details to assist in identifying anomalous access patterns that may indicate credential abuse or device-code phishing.
This rule detects potential direct send email spoofing attempts where an email fails SPF, DKIM, and DMARC authentication checks, but passes Composite Authentication (CompAuth). Additionally, it looks for emails where the sender's local part (username before the @) matches the recipient's local part, suggesting an attempt to impersonate an internal user. The rule also filters out emails that were blocked and those sent via internal connectors, focusing on external spoofing attempts. It further excludes emails originating from specific countries (New Zealand, Australia) which can be customized.
This rule detects suspicious device enrollment attempts via Microsoft Intune Company Portal from a country not previously observed in a user's 7-day sign-in history. It identifies two primary patterns: sustained successful sign-ins from a new country, indicating a potential active session and successful device enrollment (High Severity), or Conditional Access Policy (CAP) blocked attempts from a new country, suggesting an attacker probing with stolen credentials (Medium Severity). The detection aims to identify identity theft leading to unauthorized device enrollment.
This rule detects outbound network connections from devices to IP addresses identified as malicious by a threat intelligence feed. It joins device network events with threat intelligence indicators, specifically looking for successful connections or connection requests to IPs with a confidence score greater than 50. The alert provides details about the device, the remote IP, the initiating process, and the threat intelligence context.
This rule detects suspicious post-exploitation activity originating from the BeyondTrust/Bomgar session process, `bomgar-scc.exe`. It identifies the execution of common Windows command-line interpreters and scripting environments (`cmd.exe`, `powershell.exe`, `pwsh.exe`, etc.) or the presence of specific command-line substrings indicative of privilege escalation, credential access, reconnaissance, lateral movement, defense evasion (like log clearing), or download/execution cradles. The rule assigns a risk score based on the detected activities and triggers an alert if the cumulative score and unique child process count exceed predefined thresholds, suggesting a high-confidence post-exploitation scenario.
This rule detects when public or anonymous access is enabled for an Azure Storage Account. This configuration change can lead to potential data exposure, as it allows unauthenticated users to access blobs within the storage account. The rule specifically looks for 'STORAGEACCOUNTS/WRITE' or 'STORAGEACCOUNTS/BLOBSERVICES/WRITE' operations that successfully modify the storage account configuration to allow public access.
This rule detects suspicious processes (e.g., powershell.exe, cmd.exe, mshta.exe) making outbound network connections to public IP addresses on non-standard ports. This behavior can indicate command and control (C2) communication or data exfiltration attempts, as adversaries often use non-standard ports to evade detection.
This rule detects attempts to grant consent to OAuth applications, which could indicate an illicit consent grant attack. It specifically looks for successful operations related to consenting to applications, adding app role assignments to service principals, adding delegated permission grants, or adding OAuth2PermissionGrants within audit logs. The rule extracts details such as the target application, the user who consented, their initiating IP address, and the permissions granted.
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