Norton Security Suite recently detected and quarantined the following trojan horse from my Windows 7 laptop:
C:\ProgramData\{9A88E103-A20A-4EA5-8636-C73B709A5BF8}\ListSvc.dll
Ever since then, Windows has been displaying the following warnings:
SynTPEnh.exe - Bad Image
C:\ProgramData\{9A88E103-A20A-4EA5-8636-C73B709A5BF8}\ListSvc.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support.
Different executables have displayed this warning, including: SynTPEnh.exe, notepad,exe, pcdrcui.exe, and pcdrsysinfosoftware.p5x.
Apparently ListSvc.dll is a valid program that runs on startup. The registry provides the following information:
Value name:
@%SystemRoot%\System32\ListSvc.dll,-101
Value data:
Makes local computer changes associated with configuration and maintenance of the homegroup-joined computer. If this service is stopped or disabled, your computer will not work properly in a homegroup and your homegroup might not work properly. It is recommended that you keep this service running.
I have no idea from where Norton quarantined ListSvc.dll, but other copies do exist on my laptop's hard drive. However, the system seems to be pointing to the trojan horse for whatever reason.
I've seen all sorts of complicated responses to similar errors on Microsoft Answers. What can I do about this that won't put my laptop or me out of commission for the next six months?