Problem with Svchost.exe file

T

TheSlaz

Out of the blue I'm having trouble with this file. When I boot; I get
numerous error boxes stating that Svchost can't load because of a memory
violation. As a result most of my programs won't start/load. I checked
task manager and there are 10 instances of Svchost running. None are
showing as using any CPU cycles.
I'm running Windows XP Home Edition Service pack 3. Managed to do a
virus scan with Trend Micro with negative results.
Any Suggestions?
 
N

nass

TheSlaz said:
Out of the blue I'm having trouble with this file. When I boot; I get
numerous error boxes stating that Svchost can't load because of a memory
violation. As a result most of my programs won't start/load. I checked
task manager and there are 10 instances of Svchost running. None are
showing as using any CPU cycles.
I'm running Windows XP Home Edition Service pack 3. Managed to do a
virus scan with Trend Micro with negative results.
Any Suggestions?

Do a thorough scan for malware and Viruses again from different vendor and
see if it is a sign of infection or let us have the log of the Event Viewer.

1... Click start >> Control Panel >> Double Click Network and Internet
Connections >> Double click Internet Options, on the IE Properties window
you will see these Options:
General | Security | Privacy | Content | Connections | Programs
| Advanced .

Click on General Tab (1st Tab on the left) and you will see a Button called
[ Clear History ..] click on it to clear your History caches, then click on
[Delete Files..] to delete Internet Files created over the time, click on [
Delete Cookies...] to delete your cookies left by visiting websites.

Then click on Advanced tab and scroll down to under the Browsing Option:
[&] Browsing
[ ] Enable Third-Party browser extensions (Req Rest) uncheck this box.
= Then try to Disable the Add-Ons on your Browser somehow installed on your
browser, On how to disable the Add-ons follow this:
Click on Programs Tab and then click the Manage Add-Ons Button there Disable
the None/Not Verified Plug-ins/Add-ons ( you need to Renable them one-by-one
later and see which is the culprit .
How to manage Add-Ons:
http://support.microsoft.com/kb/883256
Scan for malware from here:
SuperAntispyware - Free
http://www.superantispyware.com/superantispywarefreevspro.html

Run a scan from here on-line:
http://security.symantec.com/sscv6/default.asp?langid=ie&venid=sym
http://www3.ca.com/securityadvisor/virusinfo/scan.aspx
Download Avast Cleaner (off-line scanner) from here:
http://www.avast.com/eng/avast-virus-cleaner.html
- Open a Notepad, customize or minimize to the taskbar as you will need it
later for this step to copy the error message on it.
Open a run command and type in:
eventvwr.msc click [OK] you will get the Event viewer control Panel.
click on each of these:
Application
System
Security
Look in the right Pane/window for error message with red (X) or Yellow
exclamation mark /!\ , double click each one to get more info about the
causer.
On the Event error properties message you will see:
Up Arrow
Down arrow
Two pages
Click on the two pages to copy the error message then bring up the Notepad
you opened earlier and right click on the first line and select Paste from
the list, this will paste the error message on a Notepad.
Please don't duplicate the error message one of each kind will be sufficient.
HOW TO: View and Manage Event Logs in Event Viewer in Windows XP
http://support.microsoft.com/kb/308427/en-us

HTH,
nass
 
T

Theslaz

Ran "ComboFix". Fixed everything and computer is running okay.
Apparently a Root Kit!
nass said:
TheSlaz said:
Out of the blue I'm having trouble with this file. When I boot; I get
numerous error boxes stating that Svchost can't load because of a memory
violation. As a result most of my programs won't start/load. I checked
task manager and there are 10 instances of Svchost running. None are
showing as using any CPU cycles.
I'm running Windows XP Home Edition Service pack 3. Managed to do a
virus scan with Trend Micro with negative results.
Any Suggestions?

Do a thorough scan for malware and Viruses again from different vendor and
see if it is a sign of infection or let us have the log of the Event Viewer.

1... Click start >> Control Panel >> Double Click Network and Internet
Connections >> Double click Internet Options, on the IE Properties window
you will see these Options:
General | Security | Privacy | Content | Connections | Programs
| Advanced .

Click on General Tab (1st Tab on the left) and you will see a Button called
[ Clear History ..] click on it to clear your History caches, then click on
[Delete Files..] to delete Internet Files created over the time, click on [
Delete Cookies...] to delete your cookies left by visiting websites.

Then click on Advanced tab and scroll down to under the Browsing Option:
[&] Browsing
[ ] Enable Third-Party browser extensions (Req Rest) uncheck this box.
= Then try to Disable the Add-Ons on your Browser somehow installed on your
browser, On how to disable the Add-ons follow this:
Click on Programs Tab and then click the Manage Add-Ons Button there Disable
the None/Not Verified Plug-ins/Add-ons ( you need to Renable them one-by-one
later and see which is the culprit .
How to manage Add-Ons:
http://support.microsoft.com/kb/883256
Scan for malware from here:
SuperAntispyware - Free
http://www.superantispyware.com/superantispywarefreevspro.html

Run a scan from here on-line:
http://security.symantec.com/sscv6/default.asp?langid=ie&venid=sym
http://www3.ca.com/securityadvisor/virusinfo/scan.aspx
Download Avast Cleaner (off-line scanner) from here:
http://www.avast.com/eng/avast-virus-cleaner.html
- Open a Notepad, customize or minimize to the taskbar as you will need it
later for this step to copy the error message on it.
Open a run command and type in:
eventvwr.msc click [OK] you will get the Event viewer control Panel.
click on each of these:
Application
System
Security
Look in the right Pane/window for error message with red (X) or Yellow
exclamation mark /!\ , double click each one to get more info about the
causer.
On the Event error properties message you will see:
Up Arrow
Down arrow
Two pages
Click on the two pages to copy the error message then bring up the Notepad
you opened earlier and right click on the first line and select Paste from
the list, this will paste the error message on a Notepad.
Please don't duplicate the error message one of each kind will be sufficient.
HOW TO: View and Manage Event Logs in Event Viewer in Windows XP
http://support.microsoft.com/kb/308427/en-us

HTH,
nass
 

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