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MediumSplunk security contentTeoderick Contreras +1

Windows Modify Registry ValleyRAT C2 Config

The following analytic detects modifications to theregistry related to ValleyRAT C2 configuration. Specifically, it monitors changes in registry keys where ValleyRAT saves the IP address and port information of its…

Description

The following analytic detects modifications to theregistry related to ValleyRAT C2 configuration. Specifically, it monitors changes in registry keys where ValleyRAT saves the IP address and port information of its command-and-control (C2) server. This activity is a key indicator of ValleyRAT attempting to establish persistent communication with its C2 infrastructure. By identifying these unauthorized registry modifications, security analysts can quickly detect malicious configurations and investigate the associated threats. Early detection of these changes helps prevent further exploitation and limits the malware’s ability to exfiltrate data or control infected systems.

Detection logic

Detection requirements

Platform
Windows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
sysmon_eventid_13

Known benign triggers

  • No false positives have been identified at this time.

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