Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Possible csrss.exe trojan infection?


  • Please log in to reply
13 replies to this topic

#1 hishaamsiddiqi

hishaamsiddiqi

  • Members
  • 50 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA
  • Local time:12:29 AM

Posted 25 April 2009 - 10:42 PM

Alright, so I have a pretty brand new computer. I keep all my spyware and antivirus software and firewall up to date. I constantly clear my cache, temporary files, and avoid opening unknown emails. In short, I keep my computer clean. I use Internet Explorer and Firefox, both with pop up blockers. However just today, I began getting popups for fake spyware and antivirus software, which I instantly knew was being caused by some sort of malicious program. So I hit control, alt, and delete and looked at all the processes that were running. csrss.exe was being run, and it was the only process that had a blank description, so after a little Googling, I discovered that is possibly a Trojan.

I appreciate any help you guys may have. This is the only family computer in our house, and we cannot afford another one if it were to crash.

Thank you a lot, and I hope to hear from you guys soon.

-Hishaam

Edited by hishaamsiddiqi, 25 April 2009 - 11:09 PM.


BC AdBot (Login to Remove)

 


#2 Guest_superbird_*

Guest_superbird_*

  • Guests
  • OFFLINE
  •  

Posted 26 April 2009 - 04:37 AM

Hi,

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on Download_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 and you may be prompted to restart your computer. (see Note below)
  • 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 will be presented with 1 of 2 prompts. Click OK to either and let MBAM proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot will prevent MBAM from removing all the malware.

#3 hishaamsiddiqi

hishaamsiddiqi
  • Topic Starter

  • Members
  • 50 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA

Posted 26 April 2009 - 02:05 PM

Thank you so much for your help.

The program ran without any problems, except a few files couldn't be deleted, I'm not sure how, what, or why.

Here is the log:

Malwarebytes' Anti-Malware 1.36
Database version: 2045
Windows 6.0.6000

4/26/2009 11:58:05 AM
mbam-log-2009-04-26 (11-58-05).txt

Scan type: Quick Scan
Objects scanned: 83696
Time elapsed: 5 minute(s), 49 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 1
Registry Keys Infected: 3
Registry Values Infected: 3
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 4

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
C:\Windows\System32\Tasks\nodpool.dll (Trojan.Vundo) -> Delete on reboot.

Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\rdfa (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\contim (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\dslcnnct (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cmds (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yimusevaka (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b41f4a47 (Trojan.Agent) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Windows\System32\Tasks\nodpool.dll (Trojan.Vundo) -> Delete on reboot.
C:\Users\Siddiqi Family\AppData\Local\Temp\SysNotifier.exe (Trojan.Fakealert) -> Quarantined and deleted successfully.
C:\ProgramData\todebaye\todebaye.dll (Trojan.Agent) -> Delete on reboot.
C:\ProgramData\wesagibu\wesagibu.dll (Trojan.Agent) -> Delete on reboot.



#4 Guest_superbird_*

Guest_superbird_*

  • Guests
  • OFFLINE
  •  

Posted 27 April 2009 - 02:27 AM

Hi,

That's better, but still not good. :thumbsup:

Do a new, full scan with MBAM, and post that logfile in your next reply. :flowers:

#5 hishaamsiddiqi

hishaamsiddiqi
  • Topic Starter

  • Members
  • 50 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA
  • Local time:12:29 AM

Posted 27 April 2009 - 06:49 PM

Alrighty, thank you.
:thumbsup:

Here's the log for the full scan.
:flowers:

Malwarebytes' Anti-Malware 1.36
Database version: 2045
Windows 6.0.6000

4/27/2009 4:43:06 PM
mbam-log-2009-04-27 (16-43-06).txt

Scan type: Full Scan (C:\|D:\|E:\|F:\|H:\|I:\|J:\|)
Objects scanned: 209882
Time elapsed: 1 hour(s), 28 minute(s), 40 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 2

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\ProgramData\yeneriho\yeneriho.exe (Trojan.Vundo) -> Quarantined and deleted successfully.
C:\ProgramData\jegulufo\jegulufo.dll (Trojan.Vundo) -> Quarantined and deleted successfully.



#6 Guest_superbird_*

Guest_superbird_*

  • Guests
  • OFFLINE
  •  

Posted 28 April 2009 - 07:30 AM

Hi,

Seems much better. Let's see if there are any files left.

Please go to Kaspersky website and perform an online antivirus scan.

Note: If you are using Windows Vista, open your browser by right-clicking on its icon and select 'Run as administrator' to perform this scan.
  • Read through the requirements and privacy statement and click on Accept button.
  • It will start downloading and installing the scanner and virus definitions. You will be prompted to install an application from Kaspersky. Click Run.
  • When the downloads have finished, click on Settings.
  • Make sure these boxes are checked (ticked). If they are not, please tick them and click on the Save button:
    • Spyware, Adware, Dialers, and other potentially dangerous programs
      Archives
  • Click on My Computer under Scan.
  • Once the scan is complete, it will display the results. Click on View Scan Report.
  • You will see a list of infected items there. Click on Save Report As....
  • Save this report to a convenient place. Change the Files of type to Text file (.txt) before clicking on the Save button.
  • Please post this log in your next reply.
If you need a tutorial, see here

#7 hishaamsiddiqi

hishaamsiddiqi
  • Topic Starter

  • Members
  • 50 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA

Posted 30 April 2009 - 08:05 PM

I'm sorry for taking so long to reply.

I have tried downloading and running Kaspersky, however, it will not let me since it says Java is not enabled. I have double checked and my Java and Java Script both are enabled but it still won't let me accept. I tried looking for a solution on their website, however I cannot find one.

Where do I go from here?

#8 Guest_superbird_*

Guest_superbird_*

  • Guests
  • OFFLINE
  •  

Posted 01 May 2009 - 05:19 AM

Hi,

Okay. try this scanner instead: http://www.bitdefender.com/scan8/ie.html
Please report me the results of the scan. :thumbsup:

#9 hishaamsiddiqi

hishaamsiddiqi
  • Topic Starter

  • Members
  • 50 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA
  • Local time:12:29 AM

Posted 03 May 2009 - 12:57 AM

Alrighty, here's the scan report.
It gave me the report as an HTML file, so if it paste's all weird on this, would you like me to upload it a different way, or is this legible?

Thanks.
:thumbsup:

BitDefender Online Scanner

Scan report generated at: Sat, May 02, 2009 - 22:48:18

Scan path: C:\;D:\;E:\;F:\;H:\;I:\;J:\;L:\;





Statistics

Time
01:10:12

Files
412447

Folders
22357

Boot Sectors
0

Archives
5758

Packed Files
30674




Results

Identified Viruses
6

Infected Files
8

Suspect Files
0

Warnings
0

Disinfected
0

Deleted Files
8




Engines Info

Virus Definitions
2901608

Engine build
AVCORE v1.7 (build 8314.19) (i386) (Sep 29 2008 17:19:14)

Scan plugins
17

Archive plugins
45

Unpack plugins
7

E-mail plugins
6

System plugins
4




Scan Settings

First Action
Disinfect

Second Action
Delete

Heuristics
Yes

Enable Warnings
Yes

Scanned Extensions
*;

Exclude Extensions


Scan Emails
Yes

Scan Archives
Yes

Scan Packed
Yes

Scan Files
Yes

Scan Boot
Yes




Scanned File
Status

C:\ProgramData\bimefili\bimefili.dll
Infected with: Trojan.Vundo.GMM

C:\ProgramData\bimefili\bimefili.dll
Disinfection failed

C:\ProgramData\bimefili\bimefili.dll
Deleted

C:\ProgramData\guyegine\guyegine.dll
Infected with: Gen:Trojan.Heur.Vundo.402CD3C3C3

C:\ProgramData\guyegine\guyegine.dll
Disinfection failed

C:\ProgramData\guyegine\guyegine.dll
Deleted

C:\ProgramData\kofelifu\kofelifu.exe
Infected with: Gen:Trojan.Heur.3054ABF9F9

C:\ProgramData\kofelifu\kofelifu.exe
Disinfection failed

C:\ProgramData\kofelifu\kofelifu.exe
Deleted

C:\ProgramData\lofuvika\lofuvika.dll
Infected with: Trojan.Vundo.GMM

C:\ProgramData\lofuvika\lofuvika.dll
Disinfection failed

C:\ProgramData\lofuvika\lofuvika.dll
Deleted

C:\ProgramData\pojavoru\pojavoru.exe
Infected with: Dropped:Trojan.Vundo.Gen.1

C:\ProgramData\pojavoru\pojavoru.exe
Disinfection failed

C:\ProgramData\pojavoru\pojavoru.exe
Deleted

C:\ProgramData\yukorozo\yukorozo.dll
Infected with: Gen:Trojan.Heur.Vundo.402CD3C3C3

C:\ProgramData\yukorozo\yukorozo.dll
Disinfection failed

C:\ProgramData\yukorozo\yukorozo.dll
Deleted

C:\Users\Siddiqi Family\Downloads\ysflight.zip=>SETUP.exe
Infected with: Trojan.Generic.121598

C:\Users\Siddiqi Family\Downloads\ysflight.zip=>SETUP.exe
Deleted

C:\Users\Siddiqi Family\Downloads\ysflight.zip
Updated

C:\Windows\Avira\AntiVir PersonalEdition Classic\INFECTED\49424292.qua=>(Embedded EXE g)
Infected with: Trojan.PWS.Delf.IGM

C:\Windows\Avira\AntiVir PersonalEdition Classic\INFECTED\49424292.qua=>(Embedded EXE g)
Disinfection failed

C:\Windows\Avira\AntiVir PersonalEdition Classic\INFECTED\49424292.qua=>(Embedded EXE g)
Deleted

C:\Windows\Avira\AntiVir PersonalEdition Classic\INFECTED\49424292.qua
Update failed



#10 Guest_superbird_*

Guest_superbird_*

  • Guests
  • OFFLINE
  •  

Posted 03 May 2009 - 03:39 AM

Hi,

No, this is fine. :thumbsup:

Delete these folders if still present:
C:\ProgramData\bimefili
C:\ProgramData\guyegine
C:\ProgramData\kofelifu
C:\ProgramData\lofuvika
C:\ProgramData\pojavoru
C:\ProgramData\yukorozo


Delete these files if present:
C:\Users\Siddiqi Family\Downloads\ysflight.zip
C:\Windows\Avira\AntiVir PersonalEdition Classic\INFECTED\49424292.qua


Also, delete everything in your virus vault.

Now, tell me what was present, and which problems you still have left. :flowers:

Edited by superbird, 03 May 2009 - 03:39 AM.


#11 hishaamsiddiqi

hishaamsiddiqi
  • Topic Starter

  • Members
  • 50 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA

Posted 03 May 2009 - 07:38 PM

I found all of those files listed and deleted them.

And I haven't been having any problems for about two/three days now since we did the scan before this last one.

So hopefully it's gone now?

#12 Guest_superbird_*

Guest_superbird_*

  • Guests
  • OFFLINE
  •  

Posted 04 May 2009 - 05:32 AM

Hi,

Everything looks clean again. :thumbsup:
Do this:

1. Reset and Re-enable your System Restore to remove infected files that have been backed up by Windows. The files in System Restore are protected to prevent any programs from changing those files. This is the only way to clean these files: (You will lose all previous restore points which are likely to be infected)1. Turn off System Restore.On the Desktop, right-click My Computer.
Click Properties.
Click the System Restore tab.
Check Turn off System Restore.
Click Apply, and then click OK.
2. Restart your computer.

3. Turn ON System Restore.On the Desktop, right-click My Computer.
Click Properties.
Click the System Restore tab.
UN-Check Turn off System Restore.
Click Apply, and then click OK.
[/list]System Restore will now be active again.

2. Go to the Windows update site and download and install all available updates, so your computer is prtected against malware.

3. Read this page To prevent yourself against re-infection.

4. You can delete all used tools and programs.

#13 hishaamsiddiqi

hishaamsiddiqi
  • Topic Starter

  • Members
  • 50 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA
  • Local time:12:29 AM

Posted 05 May 2009 - 08:55 PM

I cannot find a Turn On/Off System Restore button.

I'm running Windows Vista, if that helps.

#14 Guest_superbird_*

Guest_superbird_*

  • Guests
  • OFFLINE
  •  

Posted 06 May 2009 - 03:48 AM

Hi,

Go to start, and type system restore
Click on the result "System Restore"
If I'm right (I can't see it at the moment) you can do it there.

Let me know if not. :thumbsup:




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users