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How to Remove the Ist Bar (Trojan.ISTsvc)

Myantispyware team December 18, 2005    

Adware.Istbar is an adware component, which does one or more of the following:

  • Installs an Internet Explorer toolbar
  • Acts as a Home page and search hijacker

1. Download the Norton Removal Tool for fixing Istbar. When you have done that please run the tool and exit when it has finished!

2. Click here to download HijackThis, also please read how to use the program. After install, Click on the “Do a system scan only” button. It will scan and leave you with a screen box, with a list of entries

3. Fix the following entries if they are still there:

O3 – Toolbar: ISTbar – {5F1ABCDB-A875-46c1-8345-B72A4567E486} – C:\PROGRA~1\ISTbar\istbar.dll
O4 – HKLM\..\Run: [IST Service] C:\Program Files\ISTsvc\istsvc.exe
04 – HKLM\..\Run: [}пБzо[8C:\Program Files\ISTsvc\istsvc.exe] C:\WINDOWS\pwkctgec.exe

(note – the characters for the third line will be random and not exactly as shown above)

4. Find and manually delete these folder if present:

C:\Program Files\ISTsvc
C:\Program Files\ISTbar
Also open the Norton Removal Tool Page, for what you should to remove (Reg keys, dirs and others).

5. Run HijackThis again and see if the IST entries are now gone from the HijackThis log

IstBar is typically installed with other malware. Go to Online Scanners category and Scan your computer for malware.

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Author: Myantispyware team

Myantispyware is an information security website created in 2004. Our content is written in collaboration with Cyber Security specialists, IT experts, under the direction of Patrik Holder and Valeri Tchmych, founders of Myantispyware.com.

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