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SKYNET hidden file, keeps reinstalling.


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#1 smcongdon

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Posted 25 June 2009 - 01:57 AM

Hello,

First time poster here - and I've been all over these forums (and others) with no solution to this problem. I'll just blurt out the basics before I go posting any logs and what not, with the exception that I'm running Vista home premium, with AVG 8.

Yesterday I started receiving pop-up "threat detected" notifications from AVG. I tried "moving to vault" at first, but upon attempting to "remove/heal" the infected file, I apparently made something angry. The notifications pop up (and stack in an AVG window) now about every 30 seconds, for the exact same hidden file. The file is:

C:\Windows\System32\drivers\SKYNETfgkfmdbj.sys

AVG lists the alternate info as:

Infection: Virus Identified Win32/Cryptor

I've attempted using Malware Bytes, Super AntiSpyware, AdAware, and AVG to resolve the issue, but to no avail. I've seen some other posts where people posted logs, and then ran a script, but I obviously haven't tried that or ComboFix, as I'm not an expert. It should be noted that none of the above anti-spyware or anti-virus programs have returned positive results on anything but minor, normal hiccups.

I have noticed no severe effect on system performance, aside from the constant AVG alerts every thirty seconds or so. Any help at all with this issue would be greatly appreciated.

Thanks, guys!

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#2 quietman7

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Posted 25 June 2009 - 09:05 AM

Please download RootRepeal Rootkit Detector and save it to your Desktop.
alternate download link 1
  • Close all programs and temporarily disable your anti-virus, Firewall and any anti-malware real-time protection before performing a scan.
  • Click this link to see a list of such programs and how to disable them.
  • Create a new folder on your hard drive called RootRepeal (C:\RootRepeal) and extract (unzip) RootRepeal.zip. (click here if you're not sure how to do this. Vista users refer to this link.)
  • Open the folder and double-click on RootRepeal.exe to launch it. If using Vista, right-click and Run as Administrator...
  • Click on the Files tab, then click the Scan button.
  • In the Select Drives, dialog Please select drives to scan: select all drives showing, then click OK.
  • When the scan has completed, a list of files will be generated in the RootRepeal window.
  • Click on the Save Report button and save it as rootrepeal.txt to your desktop or the same location where you ran the tool from.
  • Open rootrepeal.txt in Notepad and copy/paste its contents in your next reply.
  • Exit RootRepeal and be sure to re-enable your anti-virus, Firewall and any other security programs you had disabled.
Note: If RootRepeal cannot complete a scan and results in a crash report, try repeating the scan in "Safe Mode".
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#3 smcongdon

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Posted 26 June 2009 - 02:01 AM

Didn't read the crash part at the bottom, edited for content. Attempting that now.

Edited by smcongdon, 26 June 2009 - 02:04 AM.


#4 smcongdon

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Posted 26 June 2009 - 02:11 AM

Safe mode produced the same results - RootRepeal crashing each time. It generates three logs each time it crashes, they are as follows:

ROOTREPEAL CRASH REPORT
-------------------------
Exception Code: 0xc0000005
Exception Address: 0x00430aa0
Attempt to read from address: 0x01256000


ROOTREPEAL CRASH REPORT
-------------------------
Exception Code: 0xc0000005
Exception Address: 0x77781f2a
Attempt to read from address: 0x6c18913a


ROOTREPEAL CRASH REPORT
-------------------------
Exception Code: 0xc0000005
Exception Address: 0x77781f2a
Attempt to read from address: 0x6c18913a

It is also worth mentioning that my AVG is now spamming a new infection in addition to the original one:

C:\Windows\System32\drivers\SKYNETpiviufxx.dll Infection: Virus Identified Packed.Rolex

Edited by smcongdon, 26 June 2009 - 02:15 AM.


#5 quietman7

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Posted 26 June 2009 - 06:37 AM

Some infections are difficult to remove completely because of their morphing characteristics which allows the malware to regenerate itself. Sometimes there is hidden piece of malware (i.e. rootkit) which has not been detected by your security tools that protects malicious files and registry keys so they cannot be permanently deleted. Disinfection will probably require the use of more powerful tools than we recommend in this forum. Before that can be done you will need you to create and post a DDS/HijackThis log for further investigation.

Please read the pinned topic titled "Preparation Guide For Use Before Posting A Hijackthis Log". If you cannot complete a step, then skip it and continue with the next. In Step 6 there are instructions for downloading and running DDS which will create a Pseudo HJT Report as part of its log.

When you have done that, post your log in the HijackThis Logs and Malware Removal forum, NOT here, for assistance by the HJT Team Experts. A member of the Team will walk you through, step by step, on how to clean your computer. If you post your log back in this thread, the response from the HJT Team will be delayed because your post will have to be moved. This means it will fall in line behind any others posted that same day.

Start a new topic, give it a relevant title and post your log along with a brief description of your problem, a summary of any anti-malware tools you have used and a summary of any steps that you have performed on your own. An expert will analyze your log and reply with instructions advising you what to fix. After doing this, we would appreciate if you post a link to your log back here so we know that your getting help from the HJT Team.

Please be patient. It may take a while to get a response because the HJT Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT "bump" your post or make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.
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#6 smcongdon

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Posted 27 June 2009 - 01:52 AM

My thanks for the assistance! I'll get on it.

#7 quietman7

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Posted 27 June 2009 - 06:31 AM

Your DDS/HijackThis log is posted here.

Now that your log is posted, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show it the log you already posted. Further, any modifications you make on your own may cause confusion for the member assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

To avoid confusion, I am closing this topic until you are cleared by the HJT Team. If you still need assistance after your log has been reviewed and you have been cleared, please PM me or another moderator and we will re-open this topic.

Good luck with your log.
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