Win32:Sifref-PL [Rtk], Win32:Malware-Gen, Java:CVE 2012-0507-EJ(/EI/JR/JS [Expl]

Java:Agent-BAP [Expl], and Win32:BitCoinMiner-U (PUP) infections. (To be honest, I don’t use BitCoin but having it on the machine bothers me.) Any help would be greatly appreciated.

Here’s the MBAM summary:

Malwarebytes Anti-Malware 1.62.0.1300
www.malwarebytes.org

Database version: v2012.07.29.02

Windows 7 Service Pack 1 x64 NTFS
Internet Explorer 9.0.8112.16421
Sgt. Pepper’s :: MACHINADEMUERTE [administrator]

Protection: Enabled

7/29/2012 12:53:28 AM
mbam-log-2012-07-29 (00-57-27).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 209786
Time elapsed: 3 minute(s), 46 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 1
C:\Windows\Installer{2e82330e-4abf-b707-2d36-f4f2c9b5e05a}\U\00000008.@ (Trojan.Dropper.BCMiner) → No action taken.

(end)

And the relevant logs…

To be honest, I don't use BitCoin but having it on the machine bothers me
well.....you also have Siref rootkit.
well.....you also have Siref rootkit.

Obviously, that bothers me a bit more.

malware removers are notified. it may take many hours before one arrive so be patient

Will do. Thank you much.

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL

[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

https://dl.dropbox.com/u/73555776/OTL_Fix.GIF

:Files ipconfig /flushdns /c C:\windows\assembly\GAC_32\Desktop.ini C:\windows\assembly\GAC_64\Desktop.ini C:\windows\Installer\{2e82330e-4abf-b707-2d36-f4f2c9b5e05a} C:\Users\Sgt. Pepper's\AppData\Local\{2e82330e-4abf-b707-2d36-f4f2c9b5e05a}

:Commands
[purity]
[resethosts]
[emptytemp]
[CREATERESTOREPOINT]
[Reboot]


[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.

THEN

Download and Install Combofix

Download ComboFix from one of the following locations:
Link 1
Link 2

VERY IMPORTANT !!! Save ComboFix.exe to your Desktop

  • IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

[*]Double click on ComboFix.exe & follow the prompts.
[*]Accept the disclaimer and allow to update if it asks

http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png

http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png

[*]When finished, it shall produce a log for you.
[*]Please include the C:\ComboFix.txt in your next reply.

Notes:

  1. Do not mouse-click Combofix’s window while it is running. That may cause it to stall.
  2. Do not “re-run” Combofix. If you have a problem, reply back for further instructions.
  3. If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.

Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now

Upon reboot after running the OTL fix the intermittent Avast notices went away. I then performed the OTL scan (log attached.) I then went to download ComboFix and clicked upon Link 1. The download began without the prompt of where I want the file downloaded (I’m using Firefox, it’s probably on the default setting, so I’m not sure where it would go prior to the prompt; perhaps the “Downloads” folder.) Either way, I cancelled the download, right-clicked upon link 1, saved target file as… to Desktop. I then disabled avast! and ran ComboFix. I was concerned that upon reboot avast! might clash with ComboFix as I had selected the “Disable until reboot” option, however, ComboFix finished without interruption. Upon completion I went to look for the log and got the message that it had been “marked for deletion”. I then rebooted and the message went away.

Attached are the two logs. And thanks again.

How is the computer behaving now any problems ?

As far as I can tell, no. But I haven’t really been running any programs that are not related to the process. (I.e. I’ve been using Firefox for here and browsing other AV/AM sites and running the diagnostic tools.) As it seems in other topics related to Sirefef people are advised not to do anything unless told to do so, so that’s what I’ve been doing.

After ComboFix ran and I posted the logs I closed out the browser there was a prompt for me to open JScript followed by random numerals and I just reacted by closing the prompt out, assuming that it was the dropper again. In hindsight I realize I probably should have taken a screenshot of the prompt and maybe tried to find out where it had come from but I didn’t. About 30 minutes later Java gave me a UAC notice that it needed to update, which I’ve ignored for several reasons: namely a. that Java exploits seemed responsible or at least connected to the initial infection and b. I believe the initial infection to have been caused by a hijacking of UAC by the Adobe Credentials (for Flash Player) and the swapping of the installation order between the virus and the Flash update. (I’m not entirely sure about the mechanics of it, but I read a technical paper on Sirefef written by someone from Sophos Labs last night and he mentioned something to that effect. The initial infection took place after I “updated” Adobe Flash Player as prompted via UAC, so I assumed that that might have been what he was referring to.

The only performance lags I noticed after the initial infection were the interruption of whatever processes I was running for 2-3 seconds which coincided with the “threat detected” notices from avast! which occurred every 3-5 minutes. Those have disappeared as far as I can tell along with the avast! notices after running the OTL fix script. Right now the system seems stable running between 2% and 8% CPU usage and 35% memory usage. There haven’t really been any spikes and everything is holding steady, but I’ve not really been watching it while any programs have been loading or running as nothing appeared obviously wrong.

I have now set my Flash not to autoupdate, I do it myself…

Could you check that windows updates works please … Meanwhile lets remove my tool and clear tha Java and IE caches

Subject to no further problems :slight_smile:

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems

Now the best part of the day ----- Your log now appears clean :thumbsup:

A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:

Run OTL
[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

:Commands [resethosts] [emptytemp] [Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done

Remove ComboFix

[*]Hold down the Windows key + R on your keyboard. This will display the Run dialogue box
[*]In the Run box, type in ComboFix /Uninstall (Notice the space between the “x” and “/”) then click OK

http://i1224.photobucket.com/albums/ee362/Essexboy3/Misc%20screen%20shots/CF_Uninstall-1.jpg

[]Follow the prompts on the screen
[
]A message should appear confirming that ComboFix was uninstalled

Run OTL and hit the cleanup button. It will remove all the programmes we have used plus itself.

We will now confirm that your hidden files are set to that, as some of the tools I use will change that

[*]Go to control panel
[*]Select folder options (Appearance > Folder options in category view)
[*]Select the View Tab.
[*]Under the Hidden files and folders heading select Do not show hidden files and folders.
[]Click Yes to confirm.
[
]Click OK.

http://users.telenet.be/bluepatchy/miekiemoes/images/javaicon.gif

Your Java is out of date. Older versions have vulnerabilities that malware can use to infect your system.
Please follow these steps to remove older version of Java components and upgrade the application.

Upgrading Java:

[] Go to this site and click Do I have Java
[
] It will check your current version and then offer to update to the latest version

SPRING CLEAN

To manually create a new Restore Point

[*]Go to Control Panel and select System
[*]Select System
[*]On the left select System Protection and accept the warning if you get one
[*]Select System Protection Tab
[*]Select Create at the bottom
[*]Type in a name i.e. Clean
[*]Select Create

Now we can purge the infected ones

[*]GoStart > All programs > Accessories > system tools
[*]Right click Disc cleanup and select run as administrator
[*]Select Your main drive and accept the warning if you get one
[*]For a few moments the system will make some calculations
[*]Select the More Options tab
[*]In the System Restore and Shadow Backups select Clean up
[*]Select Delete on the pop up
[]Select OK
[
]Select Delete

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

http://img233.imageshack.us/img233/7729/mbamicontw5.gif

Malwarebytes. Update and run weekly to keep your system clean

Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit

[*]Microsoft Windows Update

To learn more about how to protect yourself while on the internet read our little guide How did I get infected in the first place ?

Keep safe :wave:

It looks like Windows Update is working. It says “No Important Updates Available” and “Last Check for Updates 10:51 a.m.”. I’m about to begin on the other tasks.

So, after all of this I ran a few quick scans on Monday with avast! and MBAM and both came back without any results. However, I ran a full scan with avast! last night and both of the Desktop.ini files in the GAC_32 and GAC_64 folders came up infected with Sirefef-PL. I then ran a Full Scan with MBAM and it failed detect anything. I’m having no discernible performance troubles and the incessant avast! Win32:Malware-Gen notifications are not appearing. Do you think it’s a reinfection or just some kind of artifact from the previous infection, and if it is the latter is there anyway to permanently remove it? I’m attaching the MBAM log, though I am skeptical as to whether it will be much help.

Thanks again.

-Edmundo

The desktop files sometimes get recreated during the removal phase, by themselves they are harmless as all the main files have been deleted

Has Avast offered to delete them ?

Unfortunately the Geekstogo site is down again… They need a new server I feel, or Host

You could try moveonboot to remove them … http://www.gibinsoft.net/gipoutils/fileutil/
Or wait untill I can get to the site and give a link for OTM

I had Move to Chest as the default selection for all and I got the “Error: Access is denied (5)” message. I haven’t tried deleting them through avast. As it’s a Windows file and hidden as well (although not really critical) I wasn’t sure if avast’s being unable to move it to the Chest (or perhaps delete it) would be normal or not (due to permissions etc.) I figured if it was the prior infection or a reinfection it would revoke those permissions anyway, so I was kind of skittish about pressing the issue or antagonizing it in any way. (I do realize how ridiculous that last bit sounds.) I thought about using FileAssassin to try to get rid of it, but again didn’t know if that would be fruitless or counterproductive.

Will GiPo@FU run on Windows 7, as the page gives the indication that it’s not supported: “GiPo@FileUtilities is a set of utilities for Windows 95/98/ME/NT/2000/XP that provide…” I realize there’s a lot of crossover between different Windows OS and that sometimes programs that don’t claim support for Vista or 7 will still run on either, but I figured I’d ask beforehand.

How come there’s not a mirror for the GeeksToGo tools? Just curious…

As always, thank you for your time.

There is a mirror, but being a total numpty I forget to make a note of it. This just sits on the desktop so it can be deleted once used

Please download OTM

[*] Save it to your desktop.
[*] Please double-click OTM to run it. (Note: If you are running on Vista, right-click on the file and choose Run As Administrator).
[*]Copy the lines in the codebox below to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose Copy):

 
:Files 
C:\windows\assembly\GAC_32\Desktop.ini 
C:\windows\assembly\GAC_64\Desktop.ini

:Commands 
[emptytemp] 
[CREATERESTOREPOINT] 
[Reboot] 

[*]Return to OTM, right click in the “Paste Instructions for Items to be Moved” window (under the yellow bar) and choose Paste.

[*]Click the red Moveit! button.
[*]Copy everything in the Results window (under the green bar) to the clipboard by highlighting ALL of them and pressing CTRL + C (or, after highlighting, right-click and choose copy), and paste it in your next reply.
[*]Close OTM and reboot your PC.

Note: If a file or folder cannot be moved immediately you may be asked to reboot the machine to finish the move process. If you are asked to reboot the machine choose Yes. In this case, after the reboot, open Notepad (Start

All processes killed
========== FILES ==========
C:\windows\assembly\GAC_32\Desktop.ini moved successfully.
C:\windows\assembly\GAC_64\Desktop.ini moved successfully.
========== COMMANDS ==========

[EMPTYTEMP]

User: All Users

User: Default
->Temp folder emptied: 0 bytes
->Temporary Internet Files folder emptied: 0 bytes
->Flash cache emptied: 0 bytes

User: Default User
->Temp folder emptied: 0 bytes
->Temporary Internet Files folder emptied: 0 bytes
->Flash cache emptied: 0 bytes

User: Public
->Temp folder emptied: 0 bytes

User: Sgt. Pepper’s
->Temp folder emptied: 309159 bytes
->Temporary Internet Files folder emptied: 835762 bytes
->Java cache emptied: 2023 bytes
->FireFox cache emptied: 78266356 bytes
->Google Chrome cache emptied: 0 bytes
->Flash cache emptied: 506 bytes

User: SGT. PEPPERS
->Temp folder emptied: 0 bytes

%systemdrive% .tmp files removed: 0 bytes
%systemroot% .tmp files removed: 0 bytes
%systemroot%\System32 .tmp files removed: 0 bytes
%systemroot%\System32 (64bit) .tmp files removed: 0 bytes
%systemroot%\System32\drivers .tmp files removed: 0 bytes
Windows Temp folder emptied: 203846 bytes
%systemroot%\system32\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files folder emptied: 6688129 bytes
%systemroot%\sysnative\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files folder emptied: 33170 bytes
RecycleBin emptied: 0 bytes

Total Files Cleaned = 82.00 mb

Restore point Set: OTM Restore Point

OTM by OldTimer - Version 3.1.21.0 log created on 08012012_152848

Files moved on Reboot…
C:\Users\Sgt. Pepper’s\AppData\Local\Temp\FXSAPIDebugLogFile.txt moved successfully.
File move failed. C:\windows\temp_avast_\Webshlock.txt scheduled to be moved on reboot.

Registry entries deleted on Reboot…

Is Avast no longer detecting them now ?

If so then just delete OTM from the desktop

It was only on the Full Scan that avast detected them… I haven’t run another yet, but I will in just a bit and see what comes up.

What was that last bit in the log: “File move failed. C:\windows\temp_avast_\Webshlock.txt scheduled to be moved on reboot.” Is having the avast shields on while OTM is running conflicting with the program, or is that simply an avast reference to the now missing Desktop.ini files?

That was just avast stopping OTM from moving one of its temp files not a problem