Trojan problem?

Careful_with_that_Axe

Hi
I am getting a message from McAffee that I have a Trojan, but a full scan reveals nothing.

I am getting strange popups - the only thing I have noticed.

How do I go about tracking down what and where this is and eradicating please? Please be gentle with me

All help gratefully accepted and with thanks.

Browntoa

Please download Malwarebytes Anti-Malware and save it to your desktop.

• Make sure you are connected to the Internet.
• Double-click on mbam-setup.exe to install the application.
• When the installation begins, follow the prompts and do not make any changes to default settings.
• When installation has finished, make sure you leave both of these checked:
  • Update Malwarebytes' Anti-Malware
  • Launch Malwarebytes' Anti-Malware
• Then click Finish.
• MBAM will automatically start and you will be asked to update the program before performing a scan. If an update is found, the program will automatically update itself. Press the OK button to close that box and continue. If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
• On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
• If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
• The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
• When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
• Click OK to close the message box and continue with the removal process.
• Back at the main Scanner screen, click on the Show Results button to see a list of any malware that was found.
• Make sure that everything is checked, and click Remove Selected.
• When removal is completed, a log report will open in Notepad.
• The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
• Copy and paste the contents of that report in your next reply and exit MBAM.

Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes, they may alert you after scanning with MBAM. Please permit the program to allow the changes.

Careful_with_that_Axe

Many thanks. Will firtle off and do that now.

Careful_with_that_Axe

Malwarebytes' Anti-Malware 1.43
Database version: 3493
Windows 6.0.6002 Service Pack 2
Internet Explorer 7.0.6002.18005
04/01/2010 21:07:55
mbam-log-2010-01-04 (21-07-55).txt
Scan type: Quick Scan
Objects scanned: 98127
Time elapsed: 7 minute(s), 7 second(s)
Memory Processes Infected: 1
Memory Modules Infected: 1
Registry Keys Infected: 4
Registry Values Infected: 2
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 5
Memory Processes Infected:
C:\Windows\msa.exe (Trojan.Agent) -> Unloaded process successfully.
Memory Modules Infected:
C:\Windows\System32\sshnas.dll (Trojan.FakeAlert) -> Delete on reboot.
Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\XML (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Handle (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\PUT2VIDQLG (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\B1RQJ7YJ0U (Trojan.FakeAlert) -> Quarantined and deleted successfully.
Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\losalamos (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\put2vidqlg (Trojan.FakeAlert) -> Quarantined and deleted successfully.
Registry Data Items Infected:
(No malicious items detected)
Folders Infected:
(No malicious items detected)
Files Infected:
C:\Windows\System32\sshnas.dll (Trojan.FakeAlert) -> Delete on reboot.
C:\Windows\Tasks\{66BA574B-1E11-49b8-909C-8CC9E0E8E015}.job (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Windows\msa.exe (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Users\jo\AppData\Local\Temp\b.exe (Trojan.Dropper) -> Quarantined and deleted successfully.

Careful_with_that_Axe

All done and result as above.

I am normally quite careful (I think!) but I took my eye off the ball on Saturday and downloaded sommat - got an alert and stopped download, but suspect the damage was done then.

Browntoa

I'd follow it with this to be sure

http://www.bleepingcomputer.com/combofix/how-to-use-combofix

and post the log file

you will need to do some windows updates when we give you the all clear