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Sirefef.P and other stuff


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#1 nxctt

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Posted 09 August 2012 - 07:57 AM

Ok, so last night I was browsing the internet and a certain page caused Microsoft Security Essentials to give me a notification that it detected something and cleaned it. I opened MSE and checked the "All-detected items" under the history tab and found that it removed something called Sirefef.P. Since then, i've removed it from the history, but i'm pretty sure it was in the C:/Users/Owner/AppData/Local/Temp folder and it was an .exe file with a lot of numbers in it. I'm not sure if this is typical but there were no buttons to click on when MSE gave me that message in the corner of the screen. Just an X to close it. Sorry I don't have a screenshot of it but it must have been a real MSE one since the detected file was in the history tab. A couple of Java processes ran when I opened the page where it was detected, that made me think that there was something wrong with it so I uninstalled Java and installed the latest versions. I also ran MBAM and it didn't detect anything. I've also used CCleaner to clear Temporary Files and just about everything else that I could with it.

By the way, I didn't notice anything unusual during all of this, and the computer hasn't rebooted on its own or anything. I did get a message about updating Adobe Reader at some point, which I did, but I assume it's unrelated because the Java Platform SE Auto Updater was re-enabled in the msconfig Startup tab, because I re-installed Java. Is that what caused the update? I'm pretty sure I had something like that disabled before which would explain why I got prompted for the update even though the latest version is apparently several months old.

Still, I want to make sure there are no more infections on my computer.

Earlier tonight I booted into safe mode and did scans with MSE and MBAM again. MSE found an exploit called CVE-2012-1723.dm, which I assume was taken care of and i've removed it from the history. MBAM found nothing again. I rebooted into normal mode.

Then I did something that is widely ill-advised by running ComboFix, because I thought I could handle it. In the "Other Deletions" part of the log, there are 4 files. If possible, could I PM the log to one of the helpers around here? I don't like the idea of posting computer logs for just anyone to see. I haven't removed ComboFix yet so I assume the quarantined files are still fine and can be restored if needed.

The 4 files are:
C:\Install.exe
c:\users\Owner\AppData\Local\Tempals_inst.exe
c:\windows\apppatch\AppLoc.exe
c:\windows\AppPatch\Custom\{deb7008b-681e-4a4a-8aae-cc833e8216ce}.sdb

EDIT: I looked up the deb7008b one and found that it's apparently a keylogger, according to a thread on this forum. I'm really worried right now, I hope somebody can set my mind at ease soon.

And if there's anything else I should do, please tell me. I'm running Windows 7 64-bit.

Edited by nxctt, 09 August 2012 - 08:41 AM.


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#2 Orange Blossom

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Posted 09 August 2012 - 02:06 PM

Hello,

No, we do not assist via PM.

Please follow the instructions in ==>This Guide<== starting at step 6.

Once the proper logs are created, then post them in a reply to this topic by using the Add Reply button. Since you have run ComboFix, please include the ComboFix log in the reply.

If you can produce at least some of the logs, then please create the post and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the reply and explain that you followed the Prep. Guide, include the information that you were unable to produce the other logs, include the ComboFix log, and describe what happens when you try to create the other logs.

Please note that I am not a member of the Malware Removal Team and will not be assisting you in removing the infection. I'm simply helping you to post the information they need in order to assist you.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

Orange Blossom :cherry:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

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#3 nxctt

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Posted 09 August 2012 - 03:22 PM

Here they are, you want the Attach.txt as well right?

Edited by m0le, 19 August 2012 - 03:26 PM.
Logs removed at user's request


#4 m0le

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Posted 13 August 2012 - 07:30 PM

Hi,

Welcome to Bleeping Computer. My name is m0le and I will be helping you with your log.
  • Please subscribe to this topic, if you haven't already. Click the Watch This Topic button at the top on the right.

  • Please avoid installing/uninstalling or updating any programs and attempting any unsupervised fixes or scans. This can make helping you impossible.

  • Please reply to this post so I know you are there.
The forum is busy and we need to have replies as soon as possible. If I haven't had a reply after 3 days I will bump the topic and if you do not reply by the following day after that then I will close the topic.

Once I receive a reply then I will return with your first instructions.

Thanks :thumbup2:
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#5 nxctt

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Posted 13 August 2012 - 07:32 PM

I'm right here, been refreshing the thread for days and getting stressed out, worried about my new computer. So glad someone posted.

#6 m0le

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Posted 13 August 2012 - 07:36 PM

How has the machine been running since you first posted?

Also, please run aswMBR

Please download aswMBR ( 511KB ) to your desktop.
  • Double click the aswMBR.exe icon to run it
  • Click the Scan button to start the scan
  • On completion of the scan, click the save log button, save it to your desktop and post it in your next reply.

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#7 nxctt

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Posted 13 August 2012 - 08:03 PM

To be honest, I didn't notice any performance issues or weird symptoms like rebooting after a minute or two of uptime.

Until just now.

After that program downloaded the definitions, I assume you wanted me to run a full scan, so in the "AV Scan" drop down menu, I selected the C:/ drive instead of the QuickScan option. I stepped away from the computer for a moment and when I came back, it was restarting. Gave me the advanced boot options so I chose to start it normally.

Should I disable Microsoft Security Essentials? Maybe that was the problem. I'll wait for your confirmation before doing anything else.

Also, do you think there's anything in my logs so far that would indicate any infections?

Edited by nxctt, 13 August 2012 - 10:20 PM.


#8 m0le

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Posted 14 August 2012 - 02:49 PM

Yes, please disable any antiviruses or antispywares that work in real time.

I don't see anything at this stage that shows anything but I've only seen a couple of logs and they don't target rootkits anyway so that's no indicator.
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#9 nxctt

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Posted 14 August 2012 - 09:20 PM

After disabling MSE I was able to complete the scan, here's the log you requested. Is it normal for that program to "hang" on files and seemingly take several minutes to scan them?

Edited by m0le, 19 August 2012 - 03:26 PM.
Logs removed at user's request


#10 m0le

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Posted 15 August 2012 - 02:20 PM

Is it normal for that program to "hang" on files and seemingly take several minutes to scan them?


Yes, it is.

The log looks fine, as well.

We need to look for remnants of the rootkit so please now run Combofix

Please download ComboFix from one of these locations:* IMPORTANT !!! Save ComboFix.exe to your Desktop making sure you rename it comfix.exe
  • Disable your AntiVirus and AntiSpyware applications including Firewalls, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. (Click on this link to see a list of programs that should be disabled. The list is not all inclusive.)
  • Double click on Comfix.exe & follow the prompts.
  • As part of it's process, ComboFix will check to see if the Microsoft Windows Recovery Console is installed. With malware infections being as they are today, it's strongly recommended to have this pre-installed on your machine before doing any malware removal. It will allow you to boot up into a special recovery/repair mode that will allow us to more easily help you should your computer have a problem after an attempted removal of malware.
  • Follow the prompts to allow ComboFix to download and install the Microsoft Windows Recovery Console, and when prompted, agree to the End-User License Agreement to install the Microsoft Windows Recovery Console.
**Please note: If the Microsoft Windows Recovery Console is already installed, ComboFix will continue it's malware removal procedures.

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Once the Microsoft Windows Recovery Console is installed using ComboFix, you should see the following message:

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Click on Yes, to continue scanning for malware.

When finished, it shall produce a log for you. Please include the C:\ComboFix.txt in your next reply.
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#11 nxctt

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Posted 15 August 2012 - 07:28 PM

I still haven't uninstalled ComboFix after the first scan/log and the few quarantined files are still in the Qoobox folder. Is it safe to uninstall and remove that, then download ComboFix again and run it? Or can I just run it now?

#12 m0le

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Posted 15 August 2012 - 07:51 PM

Uninstall ComboFix

Remove Combofix now that we're done with it.
  • Disable any realtime antivirus or antispyware programs.
  • Please press the Windows Key and R on your keyboard. This will bring up the Run... command.
    (For Vista/Windows 7 please click Start -> All Programs -> Accessories -> Run)
  • Now type in Combofix /Uninstall in the runbox and click OK. (Notice the space between "Combofix" and "/")
  • Please follow the prompts to uninstall Combofix.
  • You will then receive a message saying Combofix was uninstalled successfully once it's done uninstalling itself.
This will uninstall Combofix and anything associated with it.

Then download and run a fresh copy

Please download ComboFix from one of these locations:
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#13 nxctt

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Posted 15 August 2012 - 09:26 PM

Sorry, I forgot to rename it to comfix.exe before running it, but it still scanned and produced a log so I guess it's ok? I can try it again if necessary. Here's the new log:

Edited by m0le, 19 August 2012 - 03:27 PM.
Logs removed at user's request


#14 m0le

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Posted 16 August 2012 - 06:19 PM

That looks clean as well.

Have you had any problems with the machine since we began checking it?
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#15 nxctt

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Posted 16 August 2012 - 06:53 PM

None at all. You said you wanted to look for remnants of the rootkit so do you think there is something else?




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