Troj ISTbar B


My virus program detected a virus called TROJ ISTBAR B and advised me that it quarantined it. Is it OK to delete it?


This question was answered on October 16, 2003. Much of the information contained herein may have changed since posting.

This virus behavior is the following: it Installs an Internet Explorer toolbar, Act as a home page and search hijacker and pops up advertisement, often pornographic in nature.

To answer your question, yes you should delete it!.. But just to double check do the following:

1 Update your antivirus software very often, so you can obtain the most recent viusr definitions.

2 Start you antivirus and make sure it is configured to scan all the files, run a full scan and delete any virus it finds.

3 you can go to the registry and delete the value:

a Click Start, and then click Run (The Run dialog box appears.)

Type regedit

b Then click OK (The Registry Editor opens.)

c Navigate to the key:

d HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

e In the right pane, delete the value:

f "IST Service" = "C:\Program Files\ISTsvc\ISTsvc.exe"

g Navigate to and delete the key:


i Exit the Registry Editor.

Note: before you modified the registry make a Backup, on the "System State"

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Posted by Student of Katharine Gibbs School - New York on October 16, 2003