I feel this is going to be use for Windows users

I have found a file with .exe extension with JPEG icon in my box. My AV (NAV2002) has detected it. It resides in \windows\system folder.

Moreover,

I got a place in Startup procedure. I have found an entry of PIX in startup. One can access this thru Start>Run>msconfig. Startup tab of System Configuration Utility Dialog reveals this. Here programs that are to be loaded (called memory resident) will have its place. The syntax is "Key Name followed by its value (path)" (eg: System Tray - SysTray.exe, TaskMonitor - C:\WINDOWS\TASKMON.EXE etc., ). PIX61081 got linked to rundll32.exe and is display the entry as 'PIX61081 - C:\WINDOWS\RUNDLL32.EXE'

Tip: An important one.

Go to Folder Options from Windows Explorer
Uncheck "Hide Extensions of known file types.