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Sirefef.r infection that Vipre and Malwarebytes can't clear


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#1 Reap

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Posted 13 August 2012 - 05:17 PM

Greetings --

For about a week, I've noticed that my Win 7 computer will hang in sleep mode, and repeated scans of Vipre and Malwarebytes AntiMalware find but are unable to clean out the Sirefef.r trojan. Microsoft's Live Scanner and Eset's online scanner also find it but cannot clean it.
From searching through Google, I'm not the only one with this pest, but it also seems that personalized help is necessary... so I'm hoping the wizards here can work some magic. Help!

Thanks,
Reap

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#2 Reap

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Posted 13 August 2012 - 09:44 PM

Since I became too impatient to wait, I tried a couple things.
First, my problem seemed to be pretty darn close to what was described in this thread

http://www.bleepingcomputer.com/forums/topic457855.html

wherein the great Gringo helped solve the issue. Based on his methods, this is what I did:

1. Ran TDSKiller. Nothing found.
2. Ran FRST64 "Scan" from the command line in the Recovery mode.
Discerned that there was an issue here (since it had ZeroAccess, and that was seemingly what clued in Gringo)

ZeroAccess:
C:\Windows\Installer\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}
C:\Windows\Installer\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}\@
C:\Windows\Installer\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}\L
C:\Windows\Installer\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}\U

ZeroAccess:
C:\Users\SevenAdmin\AppData\Local\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}
C:\Users\SevenAdmin\AppData\Local\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}\@
C:\Users\SevenAdmin\AppData\Local\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}\L
C:\Users\SevenAdmin\AppData\Local\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}\U

3. Created a fixlist.txt (see below) in Notepad and placed it in the same directory as FRST64, and then ran FRST64 "Fix"

C:\Windows\Installer\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}
C:\Users\SevenAdmin\AppData\Local\{877b6421-a7a7-1e0f-b2ae-5738b342cd6d}

4. Searched for services.exe in FRST64 "Search" and found something similar to post #7 of the http://www.bleepingcomputer.com/forums/topic457855.html thread
Note: one of the previous malware detectors -- can't remember which -- had said services.exe was infected.

5. Created another fixlist.txt based on post #8 from Gringo, and ran FRST64 "Fix" again.

6. Rebooted the computer, and ran Combofix. (Log available at request)

7. Tried to go to sleep. Or rather, put the computer to sleep. It did so and reawakened normally! SUCCESS?

8. Ran Vipre again, and found that services(77).exe was still triggering a Sirefef.r(v) warning.

9. Here's where it gets weird. FRST64 did NOT find services(77).exe when I searched for it. Not as a file, not in the registry. The resulting search.txt. was empty! However, while in the command prompt of the Recovery environment, it was listed.
I couldn't find any reference to services(77).exe when I googled it. So I did this:

C:\WINDOWS\System32\>del services(77).exe


Result: Passed Vipre's scan. I'm running MSERT.exe (Microsoft's Safety Scanner) and it hasn't picked anything up yet.

I know that I'm not supposed to use any of the powerful tools here without adult supervision. I fully realize I could brick my computer but I accept that responsibility and moved forward.

Hopefully this works

#3 Reap

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Posted 14 August 2012 - 12:39 PM

Well, not quite sure what to make of it.
The good news: MSERT, ESET online scanner, Vipre deep scan (twice) all came back as clear.
The not-so-good news: I'm not sure if the registry needs attention; it likely does.
The bad news: that initial symptom of hanging when I sleep/hibernate? It's sporadic. Not sure if it's the malware or my update of Intel's storage drivers to Intel Rapid Storage Technology.

Looks like I still need assistance!

#4 HelpBot

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Posted 18 August 2012 - 05:20 PM

Hello and welcome to Bleeping Computer!

I am HelpBot: an automated program designed to help the Bleeping Computer Staff better assist you! This message contains very important information, so please read through all of it before doing anything.

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Posted Image If you still need help, I would like you to post a Reply to this topic (click the "Add Reply" button in the lower right hand of this page). In that reply, please include the following information:

  • If you have not done so already, include a clear description of the problems you're having, along with any steps you may have performed so far.
  • A new DDS and GMER log. For your convenience, you will find the instructions for generating these logs repeated at the bottom of this post.
    • Please do this even if you have previously posted logs for us.
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Thank you for your patience, and again sorry for the delay.

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We need to see some information about what is happening in your machine. Please perform the following scan again:

  • Download DDS by sUBs from one of the following links if you no longer have it available. Save it to your desktop.
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Please note: You may have to disable any script protection running if the scan fails to run. After downloading the tool, disconnect from the internet and disable all antivirus protection. Run the scan, enable your A/V and reconnect to the internet.

Information on A/V control HERE


We also need a new log from the GMER anti-rootkit Scanner.

Please note that if you are running a 64-bit version of Windows, you should not bother creating a GMER log.

Please first disable any CD emulation programs using the steps found in this topic:

Why we request you disable CD Emulation when receiving Malware Removal Advice


Then create another GMER log and post it as an attachment to the reply where you post your new DDS log. Instructions on how to properly create a GMER log can be found here:

How to create a GMER log


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#5 Reap

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Posted 18 August 2012 - 07:13 PM

Well, I'm about to tell the HelpBot that I no longer need assistance; truth be told, I contacted GFI (formerly Sunbelt, the makers of Vipre) and they were of absolutely no assistance the first call. What they made me do was run Vipre deep scan twice with the latest threat definitions. As expected, that was as useful as a balloon filled with granite.

After my second call, they escalated me to their security response umit, who emailed me within 24hrs a .zip file containing a fix to sirefef. I sent them a reply that basically encapsulated this thread, and got a phone call that day from Mike, a member of the aforementioned unit. He was very pleasant and polite, and assured me that their fix was sufficient. So far, so good. Not a hint that sirefef lurks, and I installed an SSD as a boot drive which sleeps without incident.

Case closed.

#6 HelpBot

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Posted 18 August 2012 - 07:14 PM

You have stated that you no longer need help with this issue, therefore I am closing this topic. If that is not the case and you need or wish to continue with this topic, please send any Moderator a Personal Message (PM) that you would like this topic re-opened.

As I am just a silly little program running on the BleepingComputer.com servers, please do not send me private messages as I do not know how to read and reply to them! Thanks!




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