Understanding and Fixing S1-mp64-ship.exe Errors is the core executable file for the multiplayer component of Call of Duty: Advanced Warfare . The "mp" in the filename stands for multiplayer , "64" indicates it is a 64-bit application, and "ship" refers to the final shipping (release) version of the software.

She opened the file in a hex editor. Hidden in the raw binary was a message, buried in the dead space between sectors:

: Right-click the file → Properties → Digital Signatures tab. If it says “No signature” or the signer is unknown/untrusted (not Microsoft, Epic Games, Valve, etc.), it is malicious.

It is important to clarify at the outset: It does not belong to a mainstream video game, a verified software development kit, or a legitimate Windows system process.

C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Advanced Warfare\ Digital Signature: Legitimate versions of this file are digitally signed by Activision Publishing, Inc. Functionality