Stack Overflow,
Hi and welcome to the Daniweb forums :). (Sorry, I had to do that :D)
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Download, then unzip to "C:\HJT", the newest version of HiJackThis ; version 1.99.1. Then repost your log, either now, or after following the steps in the solution (if provided in this post). This version has features that might be more helpful in 'cleaning' up your system.
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Go to www.trendmicro.com , and then:
1. Click "Free Online Scan".
2. Click "Scan now, it's free".
It'll take a few minutes to download (especially with a dialup connection), so be patient. When it's down:
1. Select all available drives.
2. Check(tick) "Auto Clean".
3. Click "Scan".
When it completes, post back the full filename of any files that cannot be cleaned or deleted.
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Run HiJackThis and click "Scan", then check(tick) the following, if present:
F2 - REG:system.ini: Shell=Explorer.exe C:\WINNT\system32\stivc.exe
O3 - Toolbar: (no name) - {62999427-33FC-4baf-9C9C-BCE6BD127F08} - (no file)
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
Now, with all windows closed except HiJackThis, click "Fix checked".
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Locate and delete the following item(s), if present. Make sure your able to " view system and hidden files/ folders: "
files...
C:\WINNT\system32\stivc.exe
Search for...
ALCMTR.EXE
...using "Start | Search...".
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Note that some of these file(s) may or may not be present. If present, and cannot be deleted because they're 'in use', try deleting them in " Safe Mode ".
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Reboot.
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After rebooting your PC, rescan with hijackthis and post a new log.
Let me know how things are now.