Darshan Thummar
@MightyCompletionist
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2,107 detections
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Detects cross-site scripting attempts in HTTP requests
Detects MSBuild used with inline task to execute arbitrary code
Detects use of macOS resource forks to hide malicious data
Detects upload of backdoored container images to internal registries
Detects bulk downloading of SharePoint document libraries
This rule detects when an OAuth application is granted tenant-wide administrative permissions within a Microsoft 365 environment. It specifically looks for HTTP POST requests to 'graph.microsoft.com' with the URI containing 'oauth2PermissionGrants'. This activity is indicative of a malicious OAuth app attempting to gain broad access to an organization's data and resources, often as a persistence mechanism.
This rule detects a high volume of HTTP POST requests to known SMS API providers (Twilio, Nexmo, Vonage) from a single source IP address within a short timeframe. This pattern is indicative of a 'pumping attack' or SMS fraud, where an attacker attempts to generate a large number of SMS messages, often to premium rate numbers, to incur charges or exploit vulnerabilities in billing systems. The threshold is set to 20 requests within 60 seconds from the same source.
This rule detects potential bandwidth hijacking activity associated with peer-to-peer botnet traffic. It triggers an alert when a high volume of TCP traffic (more than 200 packets within 60 seconds) with a packet size greater than 1000 bytes is observed originating from the home network to any destination. The 'flow:to_server,established' indicates that the rule is looking for established connections where the traffic is flowing from the internal network to an external server. The 'threshold' keyword ensures that only sustained high-volume traffic triggers the alert, reducing noise from legitimate, short bursts of activity. The 'classtype:policy-violation' suggests that this activity is considered a violation of network usage policies.
Detects high-rate DNS queries used for network topology and configuration discovery
Detects trusted developer utilities abused as execution proxies for defense evasion
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