Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects various activities associated with the 'Operation Wocao' campaign, including the use of 'checkadmin.exe', 'netsh' commands to modify firewall rules, PowerShell execution with bypass and encoded commands, scheduled task creation, and attempts to query KeePass configuration files and PuTTY sessions from the registry. These activities indicate potential privilege escalation, persistence, discovery, and defense evasion techniques used by the threat actor.
Detects activity mentioned in the Operation Wocao report, specifically the use of 'checkadmin.exe' to enumerate local administrators. This tool is used by the threat actor to identify potential targets for privilege escalation or lateral movement.
Detects the ASP.NET page handler (webshell) used in the 'Operation Rewrite' campaign for SEO poisoning and traffic redirection.
'This query looks for messages related to file downloads of suspicious file types on an Exchange Server. This could indicate attempted deployment of webshells.
This query uses the Exchange HttpProxy AOBGeneratorLog, you will need to onboard this log as a custom log under the table http_proxy_oab_CL before using this query.
This log is commonly found at C:\Program Files\Microsoft\Exchange Server\V15\Logging\OABGeneratorLog on the Exchange server. Details on collecting custom logs into Sentinel
can be found here: https://learn.microsoft.com/azure/sentinel/connect-custom-logs
This query uses the Exchange HttpProxy AOBGeneratorLog, you will need to onboard this log as a custom log under the table http_proxy_oab_CL before using this query.
This log is commonly found at C:\Program Files\Microsoft\Exchange Server\V15\Logging\OABGeneratorLog on the Exchange server. Details on collecting custom logs into Sentinel
can be found here: https://learn.microsoft.com/azure/sentinel/connect-custom-logs
