InstallUtil.exe LOLBin Proxy Execution - Suspicious HTTP User-Agent

Ankit Mehta@Secvyn

•updated Jun 30, 2026•0•0•2

Detects suspicious network activity originating from the InstallUtil.exe process. InstallUtil is a legitimate Windows .NET utility that can be abused as a LOLBin (Living-off-the-Land Binary) to proxy the execution of malicious payloads, potentially bypassing application control mechanisms.