Fondue.exe is a legitimate Microsoft Windows utility used to enable optional Windows features. In normal use it is harmless and signed by Microsoft, but attackers may abuse it as a loader host because security tools often trust standard system binaries more than unknown executables. When a program launches Fondue.exe and loads companion files from the same directory, a malicious DLL can be picked up through DLL side-loading or search-path hijacking.
This matters because the malicious code is carried by a trusted-looking process, which can weaken reputation-based detection and make execution look routine. In real attacks, defenders look for unusual parent-child process chains, unexpected image loads, writable folders near trusted binaries, and DLLs with names that match legitimate dependencies but contain attacker code. Monitoring process behavior, restricting write access to application directories, and tightening DLL search rules help reduce this abuse.