The trainer troubleshooting guide has been updated to include the following section:
Been using h4x0r trainers?
If you have been using trainers by a person named h4x0r then you may need to delete these trainers and any .dll files associated with them. These trainers have been known to drop suspicious .dll files in the root of your C:\ drive and also in the WIN/SYS32 folder. You may need to show hidden and system files to see them. Some of the names include h4x0r.dll, SCS.dll and SCX.dll. These malware .dll files interfere with some other trainers and should be avoided at all costs.