GammaLoad - Alternate Delimiter User-Agent Variant
This rule detects the updated GammaLoad malware's User-Agent variant. This variant is characterized by replacing double colons with double semicolons in the User-Agent string and appending '/.wsntimidate/.' to it. The detection logic specifically looks for HTTP connection events where the User-Agent matches a regex pattern indicative of this GammaLoad variant.
Microsoft Sentinel (KQL)
