Solved! Use AVCODEC-54.DLL (Trojan SuspiciousFile) Removal Guide

I will tell you in this post how to fix the issue manually and how to clean it automatically using a special powerful removal tool. You can download the removal program for free here:

Manual removal instructions:

AVCODEC-54.DLL – Trojan SuspiciousFile removal

File MD5 Virus Alias
AVCODEC-54.DLL 626eb51c0d3de4ba871f04a9aca8c5d5 Trojan SuspiciousFile

AVCODEC-54.DLL size: 702456 bytes
AVCODEC-54.DLL hash: 626EB51C0D3DE4BA871F04A9ACA8C5D5

Created files:

%Program Files%\FM4.0\201508080520\audio.dll
%Program Files%\FM4.0\201508080520\avcodec-54.dll
%Program Files%\FM4.0\201508080520\avcore.dll
%Program Files%\FM4.0\201508080520\avformat-54.dll
%Program Files%\FM4.0\201508080520\avutil-52.dll
%Program Files%\FM4.0\201508080520\DuiLib.dll
%Program Files%\FM4.0\201508080520\FHSev.exe
%Program Files%\FM4.0\201508080520\fm4.exe
%Program Files%\FM4.0\201508080520\fm4svr.exe
%Program Files%\FM4.0\201508080520\libav.dll
%Program Files%\FM4.0\201508080520\pthreadGC2.dll
%Program Files%\FM4.0\201508080520\source.dll
%Program Files%\FM4.0\201508080520\swresample-0.dll
%Program Files%\FM4.0\201508080520\Unins.exe

Detected by UnHackMe:

AVCODEC-54.DLL
Default location: %PROGRAM FILES%\FM4.0\201508080520\AVCODEC-54.DLL

Dropper information:
MD5: 08565b8f496a9849398fbbe1329f91db
File size: 3879912 bytes