The Nightmare of Proc Hollow’s Exe

**Executive Summary:** This technical report describes the Process Hollowing technique—how attackers create a suspended benign process, overwrite its entry point with malicious shellcode (demonstrated using Meterpreter), resume execution to gain stealthy persistence, and optionally combine it with PPID spoofing; it includes C/C# proof-of-concept code, detection ideas (API monitoring, PEB/VAD comparisons), example Sigma rules and a Splunk query, and guidance for defenders to detect and investigate such injections.