Usually when a computer is infected with malware there most likely will be other obvious indications (signs of infection
) that something is wrong. In any case, I can only go by what the scan logs show (what was detected, removed, suspicious, etc) and your description of whatever signs or symptoms of infection you are experiencing.
Since Norton was making the initial detection you should run Symantec Trojan.Poweliks Removal Tool.
HijackThis only scans certain areas of a computer's system/registry
Should I run Hijack this?
to help diagnose the presence of undetected malware in known hiding places. Given the sophistication of malware hiding techniques used by attackers in today's environment, HijackThis is limited in its ability to detect infection
and generate a report outside these known hiding places. This limitation has made its usefulness nearly obsolete
since a HijackThis log cannot reveal all the malware residing on a computer. As such, HijackThis has been replaced by other preferred tools
that provide comprehensive logs with specific details about more areas of a computer's system, files, folders and registry keys which may have been modified by malware infection.
Unless you know how to read and analyze logs from DDS, OTL, Zoek or RSIT there's no point in downloading and using them.