hello, thanks for the analysis, I went into despair when some machines after logon, when he finished loading the winlogon.exe and explorer.exe, explorer froze and any program not run, nor the task manager open, and opened I could not kill the explorer process, and could kill when ordered to reopen as a new task task manager froze too, got desperate and started to analyze what was loaded on logon, with the DDS and GMER , I discovered that if I went into safe mode to uninstall avast, restart, entered in normal mode and everything was ok, then I reinstall avast and looks great, I think a bug should be the key that has some effect on the option of "delaying the start of the avast service" in the settings because I'm having this problem on multiple machines, and only decided this way. ComboFix only detects and deletes the folder "C: \ Windows \ CSC \ D6."
Comments?
thank you
Marcelo.