In-memory CLR hosting paired with storage-file search precedes RAT decrypt
Detects a suspicious sequence where a process loads the .NET CLR (clr.dll or mscoree.dll) and shortly thereafter accesses specific low-prevalence file extensions (.raw or .pak) within high-risk directories (AppData/Local/Temp, ProgramData, or Users/Public). This behavior is characteristic of shellcode loaders (such as the WAV-shellcode loader) that decrypt and execute RAT payloads from obfuscated containers in memory. The rule intentionally excludes common desktop applications to minimize false positives.
Microsoft Sentinel (KQL)
