Ankit Mehta
@SecvynIndiaTrusted contributorCompletionist
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8,655 detections
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This rule detects the creation of scheduled tasks (Event ID 4697) where the command line contains either 'System' or 'Admin'. This could indicate an attempt to create a scheduled task that runs with elevated privileges or impersonates system/admin accounts for persistence or privilege escalation.
This rule detects suspicious command-line activity indicative of potential token impersonation or theft. It specifically looks for the keywords 'token' or 'impersonate' within process creation command lines (EventID 4688) and triggers an alert if these keywords appear 3 or more times within an hour on the same computer by the same account. This could indicate an adversary attempting to manipulate access tokens to elevate privileges or operate under a different security context.
This rule detects a high volume of failed object access attempts (EventID 4674) by a single user on a specific computer within a one-hour window. This could indicate an adversary attempting to discover or access sensitive resources, potentially as part of privilege escalation or data exfiltration efforts.
This rule detects modifications to the 'AdminCount' attribute in Active Directory, indicated by Event ID 5136. Changes to this attribute can signify privilege escalation attempts or modifications to highly privileged accounts.
Detects when a user account's 'UserAccountControl' attribute is modified to include the 'Not Delegated' flag (EventID 4738). This change can be an indicator of an attacker attempting to alter account behavior for persistence or to evade detection, or it could be a legitimate administrative action.
This rule detects potential lateral movement activities by monitoring for the execution of 'psexec', 'wmiexec', or 'schtasks' commands within a short timeframe on the same computer. A count of 2 or more such command executions within an hour is flagged as suspicious, indicating potential adversary activity.
This rule detects users uploading a high volume of files (50 or more within an hour) to SharePoint or OneDrive. This activity could indicate data exfiltration or unauthorized mass data transfer.
This rule detects when a single user downloads 100 or more files from SharePoint within a one-hour period. This activity could indicate data exfiltration or unauthorized bulk access to sensitive documents.
This rule detects when a single process account initiates a high volume (10 or more) of file move operations to folders associated with cloud storage services (e.g., 'cloud', 'dropbox', 'drive') within a one-hour window. This behavior could indicate data exfiltration or staging for exfiltration.
This rule detects successful network connections to known paste sites like Pastebin or Gist. Adversaries often use these services to host malicious code, exfiltrate data, or for command and control (C2) communications. Monitoring such connections can help identify potential data exfiltration attempts or the download of malicious content.
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