SYSKEY.EXE is Trojan AVKill

We checked up the file SYSKEY.EXE and found it hazardous.
The file SYSKEY.EXE must be deleted from the system immediately.
Kill the process SYSKEY.EXE and remove SYSKEY.EXE from the Windows startup.

Malware Analysis of SYSKEY.EXE
Full path on a computer: %APPDATA%\MICROSOFT\INTERNET EXPLORER\SYSKEY.EXE

How to quickly detect SYSKEY.EXE presence?

Files:

• %APPDATA%\MOZILLA\FIREFOX\PROFILES\CWDGT0Y8.DEFAULT\USER.JS
• %APPDATA%\MICROSOFT\INTERNET EXPLORER\SYSKEY.EXE