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Removed Malware but having Blue Screens


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2 replies to this topic

#1 GLFan

GLFan

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Posted 09 May 2011 - 04:35 PM

I had run across a piece of malware from an internet ad on hotmail the other day. It bypassed my Avast antivirus, launched a java update which failed, closed my IE8 and Firefox windows and proceeded to pretend to be a Win 7 antivirus program. NHX.exe was the new program that was running. While dealing with this I also recieved a blue screen of death a couple of times while logged in normally into windows 7.

I went into safe mode and using your FixNCR.reg and Rkill application renamed as eXplorer.exe disabling the malware and managed to use MalwareBytes then to update and remove the malware. Upon completion of that removal a reboot was run and Windows 7 logged into normally. Shortly after logging in a new Blue Screen was encountered and the system shut down. I've since been able to enter Safe Mode with Networking but even while in safe mode the system has mysteriously shut down twice on me.

The only new software I have installed on this computer in the last few days was Mushclient which was obtained from the main site that distributes it.

This is a log from the second Blue Screen encountered while the system still had the malware on it. No logs have been generated from any Blue Screens or random shut downs other than this.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.4
Locale ID: 1033

Additional information about the problem:
BCCode: d1
BCP1: 00000000
BCP2: 000000FF
BCP3: 00000001
BCP4: 851406AD
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\050811-22292-01.dmp
C:\Users\Admin\AppData\Local\Temp\WER-34866-0.sysdata.xml

Here is a Log from MalwareBytes of what it did to remove the malware.

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 6534

Windows 6.1.7600 (Safe Mode)
Internet Explorer 8.0.7600.16385

5/9/2011 12:02:17 PM
mbam-log-2011-05-09 (00-32-28).txt

Scan type: Full scan (C:\|D:\|E:\|)
Objects scanned: 670528
Time elapsed: 1 hour(s), 27 minute(s), 57 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 5

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyServer (PUM.Bad.Proxy) -> Value: ProxyServer -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
c:\Users\Admin\AppData\Local\nhx.exe (Trojan.ExeShell.Gen) -> Quarantined and deleted successfully.
c:\Users\Admin\AppData\Local\Temp\jar_cache17370.tmp (Trojan.Downloader.Gen) -> Quarantined and deleted successfully.
c:\Users\Admin\Desktop\eXplorer.exe (Heuristics.Reserved.Word.Exploit) -> Not selected for removal.
c:\Users\Admin\downloads\mushclient472.exe (Trojan.P2P.Dropper) -> Quarantined and deleted successfully.
c:\Windows\System32\sysprep\cryptbase.dll (Trojan.Downloader.Gen) -> Quarantined and deleted successfully.

BC AdBot (Login to Remove)

 


#2 SweetTech

SweetTech

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Posted 17 May 2011 - 06:13 PM

Hello and welcome to the forums!

My secret agent name on the forums is SweetTech (you can call me ST for short), it's a pleasure to meet you. :)

I am very sorry for the delay in responding, but as you can see we are at the moment being flooded with logs which, when paired with the never-ending shortage of helpers, resulted in the delayed responding to your thread.

I would be glad to take a look at your log and help you with solving any malware problems.

If you have since resolved the issues you were originally experiencing, or have received help elsewhere, please inform me so that this topic can be closed.

If you have not, please adhere to the guidelines below and then follow instructions as outlined further below:

  • Logs from malware removal programs (OTL is one of them) can take some time to analyze. I need you to be patient while I analyze any logs you post. Please remember, I am a volunteer, and I do have a life outside of these forums.
  • Please make sure to carefully read any instruction that I give you. Attention to detail is important! Since I cannot see or directly interact with your computer I am dependent on you to "be my eyes" and provide as much information as you can regarding the current state of your computer.
  • If you're not sure, or if something unexpected happens, do NOT continue! Stop and ask!
  • In Windows Vista and Windows 7, all tools need to be started by right clicking and selecting Run as Administrator!
  • If I instruct you to download a specific tool in which you already have, please delete the copy that you have and re-download the tool. The reason I ask you to do this is because these tools are updated fairly regularly.
  • Do not do things I do not ask for, such as running a spyware scan on your computer. The one thing that you should always do, is to make sure sure that your anti-virus definitions are up-to-date!
  • Please do not use the Attachment feature for any log file. Do a Copy/Paste of the entire contents of the log file and submit it inside your post.
  • I am going to stick with you until ALL malware is gone from your system. I would appreciate it if you would do the same. From this point, we're in this together ;)
    Because of this, you must reply within three days
    failure to reply will result in the topic being closed!
  • Please do not PM me directly for help. If you have any questions, post them in this topic.
  • Lastly, I am no magician. I will try very hard to fix your issues, but no promises can be made. Also be aware that some infections are so severe that you might need to resort to reformatting and reinstalling your operating system.
    Don't worry, this only happens in severe cases, but it sadly does happen. Be prepared to back up your data. Have means of backing up your data available.

____________________________________________________

Rootkit UnHooker (RkU)
Please download Rootkit Unhooker from one of the following links and save it to your desktop.
Link 1 (.exe file)
Link 2 (zipped file)
Link 3 (.rar file)In order to use this tool if you downloaded from either of the second two links, you will need to extract the RKUnhookerLE.exe file using a program capable of extracing ZIP and RAR compressed files. If you don't have an extraction program, you can downlaod, install and use the free 7-zip utility.

  • Double-click on RKUnhookerLE.exe to start the program.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • Click the Report tab, then click Scan.
  • Check Drivers, Stealth Code, and uncheck the rest.
  • Click OK.
  • Wait until it's finished and then go to File > Save Report.
  • Save the report to your Desktop.
  • Copy and paste the contents of the report into your next reply.
-- Note: You may get this warning...just ignore it, click OK and continue: "Rootkit Unhooker has detected a parasite inside itself! It is recommended to remove parasite, okay?".



NEXT:


Running OTL

We need to create a FULL OTL Report
  • Please download OTL from here:
  • Save it to your desktop.
  • Double click on the Posted Image icon on your desktop.
  • Click the "Scan All Users" checkbox.
  • Change the "Extra Registry" option to "SafeList"
  • Push the Posted Image button.
  • Two reports will open, copy and paste them in a reply here:
    • OTL.txt <-- Will be opened
    • Extras.txt <-- Will be minimized

NEXT:


Please provide an update on how things are running in your next reply.

Have I helped you? If you'd like to assist in the fight against malware, click here Posted Image


The instructions seen in this post have been specifically tailored to this user and the issues they are experiencing with their computer. If you think you have a similar problem, please first read this topic, and then begin your own, new thread. I do not offer private support via Private Message.


#3 SweetTech

SweetTech

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Posted 20 May 2011 - 10:00 AM

Due to the lack of feedback, this topic is now closed.In the event you still have problems, please send me or any Moderator a Private Message and ask them to reopen this topic within the next 5 days. Please include a link to your topic in the Private Message. Thank you.

Have I helped you? If you'd like to assist in the fight against malware, click here Posted Image


The instructions seen in this post have been specifically tailored to this user and the issues they are experiencing with their computer. If you think you have a similar problem, please first read this topic, and then begin your own, new thread. I do not offer private support via Private Message.





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