Ankit Mehta
@SecvynIndiaTrusted contributorCompletionist
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8,655 detections
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Detects the creation or update of an Azure Sentinel analytics rule. This can indicate administrative activity related to security monitoring configuration. Monitoring these changes is crucial for detecting potential tampering with detection capabilities or the introduction of malicious rules.
KQL Query from file: Detects when a user uploads, shares, or sends executable files (e.g., .exe, .dll, .scr) through Office 365 services (OneDrive / SharePoint / Exchange). This Query is used to find the SHA values of file.
This rule detects multiple failed SSL login attempts from a single source IP to a destination IP within a 24-hour period. A threshold of 10 failed attempts is used to identify potential brute-force attacks or credential stuffing against SSL-enabled services.
Detects modifications to the 'SSLKEYLOGFILE' environment variable in the Windows Registry. This variable is often used by applications like web browsers to log SSL/TLS session keys to a file, which can then be used to decrypt encrypted network traffic. Malicious actors might enable this to capture sensitive data.
This rule identifies if a given IP address falls within the known IP ranges used by Apple's iCloud Private Relay service. It retrieves a list of IPv4 and IPv6 ranges from a public GitHub repository and then checks if a specified IP address is contained within any of these ranges. This can be used to identify traffic potentially obfuscated by iCloud Private Relay.
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