Suspicious JavaScript Execution Via Mshta.EXE
This rule detects the execution of JavaScript code using 'mshta.exe'. Mshta.exe is a legitimate Windows utility that can be abused by adversaries to proxy execution of malicious .hta files and JavaScript or VBScript, often to bypass application control solutions or browser security settings. The rule specifically looks for 'mshta.exe' as the image or original filename and the presence of 'javascript' in the command line arguments.
Sigma
