Re: What is this IE Add-On?
- From: Joseph Lee <joseph.lee22590@xxxxxxxxxxxx>
- To: jfw@xxxxxxxxxxxxx
- Date: Fri, 23 Feb 2007 15:38:13 -0800
Hi Devona, Yardbird and list,
A dll (Dynamic Link Library), or so called
device driver, is a piece of program that
tells an operating system to do something
when a particular hardware or software that
is associated with that driver is installed.
For example, under Windows XP, there is a dll
file for a particular audio driver. If the
OS detects that a device driver (dll) exists
for a particular audio driver, then it will
load the driver onto memory, which will tell
Windows what to do with the audio device that
the driver is associated with. Usually dll
files are associated with hardware. dll
files should not be messed around, as
incorrect usage of a device driver may lead
to corrupted software or unusable device
(this is just a cautionary note).
Cheers,
Joseph
----- Original Message -----
From: "Devona Abel" <djasister@xxxxxxxxxxxxxx
To: <jfw@xxxxxxxxxxxxx
Date sent: Fri, 23 Feb 2007 17:19:32 -0600
Subject: Re: What is this IE Add-On?
Okay then what does it mean?
Devona
----- Original Message -----
From: "Yardbird" <yardbird@xxxxxxxxxxxxxx
To: <jfw@xxxxxxxxxxxxx
Sent: Friday, February 23, 2007 3:29 PM
Subject: Re: What is this IE Add-On?
Hi Albert,
Thank you very much for responding. If you
follow the message you haven't
read yet, you'll see that I needed a lot
more than just to know the words
the initial stand for. I needed to know
what it meant. And someone wrote
to
me privately and explained it in a very
helpful and educational way.
Thanks again.
----- Original Message -----
From: <cutolo.albert@xxxxxxxxxxx
To: <jfw@xxxxxxxxxxxxx
Sent: Friday, February 23, 2007 1:02 PM
Subject: Re: What is this IE Add-On?
Hello Yardbird:
I believe that dll stands for dynamic link
library.
----- Original Message -----
From: "Yardbird" <yardbird@xxxxxxxxxxxxxx
To: <jfw@xxxxxxxxxxxxx
Sent: Thursday, February 22, 2007 2:45 PM
Subject: Re: What is this IE Add-On?
You're saying you don't know, or don't care
to tell me, what DLL stands
for?
Or you think I'll get a history of how the
word "object" came to be used
in
computerese by googling the word "object?"
Not sure where you're coming
from.
Thanks very much.
----- Original Message -----
From: "Robert S. Batchelor"
<leehigh73@xxxxxxxxxxx
To: <jfw@xxxxxxxxxxxxx
Sent: Thursday, February 22, 2007 11:24 AM
Subject: RE: What is this IE Add-On?
Bird,
for lingo terms you are interested in
learning what they mean a Google
search is usually uour best reference point
to start;
A Browser Helper Object (BHO) is a DLL
module designed as a plugin for
Microsoft's Internet Explorer web browser to
provide added functionality.
BHOs were introduced in October 1997 with
the release of version 4 of
Internet Explorer. Most BHOs are loaded
once by each new instance of
Internet Explorer. However, in the case of
the Windows File Explorer, a
new
instance is launched for each window.
Some modules enable the display of different
file formats not ordinarily
interpretable by the browser. The Adobe
Acrobat plugin that allows
Internet
Explorer users to read PDF files within
their browser is a BHO.
Other modules add toolbars to Internet
Explorer, such as the Alexa
Toolbar
that provides a list of web sites related to
the one you are currently
browsing, or the Google Toolbar that adds a
toolbar with a Google search
box
to the browser user interface.
Contents [hide]
1 Concerns
2 See also
3 External links
3.1 Microsoft sites
3.2 Listings and examples
3.3 Removal tools
[edit] Concerns
The BHO API exposes hooks that allow the BHO
to access the Document
Object
Model (DOM) of the current page and to
control navigation. Because BHOs
have
unrestricted access to the Internet Explorer
event model, some forms of
malware have also been created as BHOs. For
example, the Download.ject
exploit installed a BHO that would activate
upon detecting a secure HTTP
connection to a financial institution,
record the user's keystrokes
(intending to capture passwords) and
transmit the information to a
website
used by Russian computer criminals. Other
BHOs such as the MyWay
Searchbar
track users' browsing patterns and pass the
information they record to
third
parties.
In response to the problems associated with
BHOs and similar extensions
to
Internet Explorer, Microsoft added an Add-on
Manager to Internet Explorer
with the release of Service Pack 2 for
Windows XP. This displays a list
of
all installed BHOs, browser extensions and
ActiveX controls, and allows
the
user to enable or disable them at will.
For users that are not using Windows XP,
there are free tools (such as
BHODemon) that list installed BHOs and allow
the user to disable
malicious
extensions.
Many BHOs actually install toolbars in
Internet Explorer. It is therefore
possible that a PC contains BHOs that the
owner doesn't know about. The
security risk here is that the BHO doesn't
need any kind of permission to
install malicious components and thus
spyware may be spread without the
user's knowledge.
Since it's relatively easy to write BHOs,
many badly written BHOs will
harm
the computer and compromise its security,
and even sometimes destroy
valuable data or corrupt system files.
*********
And. . . .
instances
Published: November 01, 2004
Send your feedback
Introduction
Browser Helper Objects (BHOs) are in-process
Component Object Model (COM)
components-that Internet Explorer will load
each time it starts up. Such
objects run in the same memory context as
the browser and can perform any
action on the available windows and modules.
BHOs are triggered for each
Internet Explorer and Explorer processes
(iexplore.exe and explorer.exe
processes). This means that BHOs are loaded
each time when you open a
folder
window or Control Panel. Usually, there is
no need to load all the BHOs
for
folder windows or while opening Control
Panel. In such case, you can
prevent
a BHO from loading with Explorer.exe
process.
Though I've not benchmarked the results
(Resources occupied by
Explorer.exe
with BHO loaded, and without a BHO loaded),
I believe it should improve
the
performance, (theoretically speaking).
Open Registry Editor and navigate to the
following key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \
Windows \ CurrentVersion \
Explorer \ Browser Helper Objects
You'll see some sub-keys in GUID format,
depending upon the number of
BHOs
installed in your system. Say, if you want
to disable EERedirect.Handler
BHO
(which I use only for Internet Explorer)
from loading with Explorer.exe
process, select the appropriate GUID. In
the right-pane, add a new
REG_DWORD
named NoExplorer and set it's value to 1
Example: EERedirect Handler's GUID is
{F02B00B3-A88C-4EF1-98FE-557F1DAF6E4D}.
Add the NoExplorer REG_DWORD in the
right-pane of this key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \
Windows \ CurrentVersion \
Explorer \ Browser Helper Objects\
{F02B00B3-A88C-4EF1-98FE-557F1DAF6E4D}
Now, EERedirect.Handler BHO will not load
when you open a folder, or
Control
Panel window, but loads with IExplorer.exe
instances.
You can easily verify the results using a
Process monitoring tool such as
Process Explorer (from sysinternals.com).
Related resources
Browser Helper Objects:The Browser the Way
You Want It
Disable or delete a BHO using ToolbarCop
---------------------------------------------
------------------------
Eliminate annoying spam!
My mailbox is protected by iHateSpam, the
#1-rated spam buster.
http://www.ihatespam.net
-----Original Message-----
From: jfw-bounce@xxxxxxxxxxxxx
[mailto:jfw-bounce@xxxxxxxxxxxxx] On
Behalf
Of Yardbird
Sent: Thursday, February 22, 2007 11:43 AM
To: jfw@xxxxxxxxxxxxx
Subject: Re: What is this IE Add-On?
Thanks. Now may I ask what a browser helper
object is, in plain English?
For
instance, I've never gotten the hang of how
the term "object" is used in
computer lingo. So could you paraphrase
that in a more colloquial way?
For
instance, does "B H O"mean an aftermarket
accessory to improve the
performance of the browser in some way? And
in what sense is that an
"object," in ordinary terms? The use of the
word "object" in these
contexts
must, it seems to me, have some sort of
metaphorical meaning that's been
adopted in computer talk, because it doesn't
seem it means physical
objects,
or something to be acted upon by something
else, as in "the object of my
affections," for instance.
Please note: This is a sincere question
about English usage, not sarcasm.
So
if no one knows, because everyone's just
sort of absorbed these
expressions,
okay, I'll accept that. But please no
flaming or insults. Thanks.
thanks.
----- Original Message -----
From: "Robert S. Batchelor"
<leehigh73@xxxxxxxxxxx
To: <jfw@xxxxxxxxxxxxx
Sent: Thursday, February 22, 2007 7:43 AM
Subject: RE: What is this IE Add-On?
Browser Helper Object
---------------------------------------------
------------------------
Eliminate annoying spam!
My mailbox is protected by iHateSpam, the
#1-rated spam buster.
http://www.ihatespam.net
-----Original Message-----
From: jfw-bounce@xxxxxxxxxxxxx
[mailto:jfw-bounce@xxxxxxxxxxxxx] On
Behalf
Of Yardbird
Sent: Thursday, February 22, 2007 10:37 AM
To: jfw@xxxxxxxxxxxxx
Subject: Re: What is this IE Add-On?
What is the BHO?
----- Original Message -----
From: "Cher Bosch" <Cher.Bosch@xxxxxxxxxxx
To: <jfw@xxxxxxxxxxxxx
Sent: Thursday, February 22, 2007 6:59 AM
Subject: Re: What is this IE Add-On?
Found the answer... It's the BHO (what
shows up if you have Spybot S&D
installed).
Cher
"Cher Bosch" <Cher.Bosch@xxxxxxxxxxx>
02/22/07 8:43 AM
Under Manage Add-ons
Show: Add-ons currently loaded in Internet
Explorer
there is this entry...
{53707962-6F74-2D53-... Safer Networking
Ltd. Enabled Browser Helper
Object SDHelper.
Does anyone know if this is this legit or
malware?
Cher
---------------------------------------------
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