When an application attempts to create a COM object using the above CLSID, Windows looks up InprocServer32 in HKCU first (if no admin override). The attacker’s DLL is loaded into the victim process, leading to arbitrary code execution.
The Windows registry stores configuration data for system and applications. The reg add command allows command-line modification of registry keys. Of particular interest is the InprocServer32 subkey under a CLSID, which defines the DLL path for an in-process COM server. Attackers frequently use reg add to hijack legitimate CLSIDs. When an application attempts to create a COM
Standard CLSID example:
00024500-0000-0000-C000-000000000046 (Microsoft Office) Searching this GUID in security databases shows no
86ca1aa034aa4e8ba50950c905bae2a2 is 32 hex characters with no hyphens — that’s actually a GUID without braces or hyphens, possible, but extremely rare in official software. It is more common in: Attackers use this to:
Searching this GUID in security databases shows no known legitimate software — a red flag.
Attackers use this to: