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Trojan.Win32.Kryptik.laq(v) removal


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#1 Kickflip

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Posted 12 November 2011 - 10:51 AM

Hello,

I, like others on this forum, have been infected with the above trojan and I can't for the life of me get rid of it.

I've run the OTL scan as the forum requests but it only outputs the OTL.Txt file; there is no Extras file as I would expect.

I had a scan through the output, and even my inexperienced eyes can see entries that should definitely not be there!

I've attached the OTL file in the hope some kind soul can help.

Thank you in anticipation.

Attached Files

  • Attached File  OTL.Txt   81.16KB   185 downloads


#2 Blade81

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Posted 12 November 2011 - 11:41 AM

Hi,

Download DDS and save it to your desktop from here or here or here.
Disable any script blocker, and then double click dds file to run the tool.
  • When done, DDS will open two (2) logs:
    • DDS.txt
    • Attach.txt
  • Save both reports to your desktop. Post them back to your topic.

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I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

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#3 Kickflip

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Posted 12 November 2011 - 12:26 PM

Hello,

Many thanks for the quick response.

Please find attached reports as requested.

Thanks again.

Attached Files



#4 Blade81

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Posted 12 November 2011 - 02:16 PM

Hi,

Download GMER here by clicking download exe -button and then saving it your desktop:
  • Double-click .exe that you downloaded
  • Click rootkit-tab, uncheck files option and then click scan.
  • Don't check
    Show All
    box while scanning in progress!
  • When scanning is ready, click Copy.
  • This copies log to clipboard
  • Post log (if the log is long, archive it into a zip file and attach instead of posting) in your reply.

Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.

#5 Kickflip

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Posted 12 November 2011 - 02:41 PM

Hello Blade81,

OK, I've run GMER as requested.

Please see report attached.

Many thanks

Attached Files



#6 Blade81

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Posted 12 November 2011 - 04:39 PM

Hi


Please visit this webpage for download links, and instructions for running ComboFix tool:

http://www.bleepingc...to-use-combofix

Please ensure you read this guide carefully first.

Please continue as follows:

  • Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix, link
    Remember to re-enable them afterwards.

  • Click Yes to allow ComboFix to continue scanning for malware.

When the tool is finished, it will produce a report for you.

Please include the following reports for further review, and so we may continue cleansing the system:

C:\ComboFix.txt
New dds log.


A word of warning: Neither I nor sUBs are responsible for any damage you may have caused your machine by running ComboFix. This tool is not a toy and not for everyday use.
Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.

#7 Kickflip

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Posted 12 November 2011 - 08:00 PM

Hi again Blade81,

ComboFix has now done it's thing. It did involve a restart, and this is documented in the log file.

Attached are the reports you request.

Cheers!

Attached Files



#8 Blade81

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Posted 12 November 2011 - 09:05 PM

Hi again,


Uninstall old Adobe Reader versions and get the latest one (Adobe Reader 10.1 and separate 10.1.1 update for it) here or get Foxit Reader here. Make sure you don't (unless you want to) install toolbar if choose Foxit Reader! You may also check free readers introduced here.


Uninstall vulnerable Flash versions by following instructions here. Fresh version can be obtained here.


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 Java components and update to the latest version...

Updating Java:
  • Download the latest version of Java Runtime Environment (JRE) 7 Update 1.
  • Click the

    Download
    button to the right.
  • Select Windows on platform combobox and check the box that says:

    Accept License Agreement. Click continue.
  • The page will refresh.
  • Click on the link to download Windows Offline Installation with or without Multi-language and save to your desktop.
  • Close any programs you may have running - especially your web browser.
  • Go to Start > Control Panel double-click on Add/Remove programs and remove all older versions of Java.
  • Check any item with Java Runtime Environment (JRE or J2SE) in the name.
  • Click the Remove or Change/Remove button.
  • Repeat as many times as necessary to remove each Java versions.
  • Reboot your computer once all Java components are removed.
  • Then from your desktop double-click on jre-7u1-windows-i586.exe to install the newest version. Uncheck Carbonite online backup trial if it's offered there.

* Go here to run an online scanner from ESET.
  • Note: You will need to use Internet explorer for this scan
  • Tick the box next to YES, I accept the Terms of Use.
  • Click Start
  • When asked, allow the activex control to install
  • Click Start
  • Make sure that the option Remove found threats is UNchecked and the option Scan unwanted applications is checkmarked.
  • Click Scan
  • Wait for the scan to finish.

Post back its report & a fresh dds.txt log. Any issues left?
Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.

#9 Kickflip

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Posted 13 November 2011 - 09:04 AM

Morning Blade81!

I actioned the measures you suggested and ran the online scan overnight.

The scan report said there were no infected files/ programs. I've attached a JPEG of the report screen as there was no output as such.

The PC is certainly seems to be running much better now.

I'll run another scan to verify all is clear now; similarly if you spot anything in this latest DDS report, please let me know what I need to do to correct it.

Really appreciate all of your assistance with this!

Best wishes.

Attached Thumbnails

  • ESET_Scan.jpg

Attached Files

  • Attached File  DDS.txt   22.59KB   97 downloads

Edited by Kickflip, 13 November 2011 - 09:14 AM.


#10 Kickflip

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Posted 13 November 2011 - 09:59 AM

Hi,

Bad news I'm afraid- I spoke too soon.

Ran an Ad-Aware scan and the Kryptik trojan is still there.

I carried out the recommended action and restarted the system.

On restart the pc entered into boot cleansing briefly. I then reran Ad-Aware to see if it had been removed, but unfortunately it remains present.

It seemed to find it whilst scanning the AppData/Roaming folder?

So frustrating!

Please let me know if there is anything else I can do to remove this nuisance!

Cheers

#11 Blade81

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Posted 13 November 2011 - 11:19 AM

Hi,

Please see what is the exact filepath of that detected item.
Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.

#12 Kickflip

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Posted 13 November 2011 - 11:51 AM

Hi,

The Ad-Aware report shows it is here:

Description: c:\users\benjy\appdata\roaming\propsysu.dll Family Name: Trojan.Win32.Kryptik.laq (v) Engine: 3 Clean status: Reboot required Item ID: 1 Family ID: 0 MD5: D8B78831F57A761F7D80D80611EB8FC
I can post the full report if you need it.

Thanks again

#13 Blade81

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Posted 13 November 2011 - 01:17 PM

Hi,

Re-run ComboFix (let it update itself). Post back the report + fresh dds logs.
Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.

#14 Kickflip

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Posted 13 November 2011 - 03:14 PM

Hi,

Please find logs as requested.

The pc restarted during ComboFix.

Just so you know, on boot up the pc entered boot cleansing mode briefly as it did after the Ad-Aware Krptik removal attempt. It tried to delete the propsysu.dll in the filepath as described above.

I don't know at the time of writing this whether or not it was successful.

Many thanks

Attached Files



#15 Blade81

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Posted 13 November 2011 - 03:18 PM

Hi,

Open notepad and copy/paste the text in the quotebox below into it:

File::
c:\users\benjy\appdata\roaming\propsysu.dll




Save this as
CFScript

A word of warning: Neither I nor sUBs are responsible for any damage you may have caused your machine. This tool is not a toy and not for everyday use.

Posted Image

Close all browser windows and refering to the picture above, drag CFScript into ComboFix.exe (let the tool to update itself if prompted).
[color=#000000][font=Verdana][size=2]Then post the resultant log.
Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.

#16 Kickflip

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Posted 13 November 2011 - 04:00 PM

Hi,

Updated using your instructions and re ran ComboFix.

All ran fine without any issues.

Many thanks

Attached Files



#17 Blade81

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Posted 13 November 2011 - 04:04 PM

Good. Any issues left?
Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.

#18 Kickflip

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Posted 13 November 2011 - 04:08 PM

Hi,

I'll just run a quick scan and see if anything crops up.

Will let you know.

Fingers crossed...

#19 Kickflip

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Posted 13 November 2011 - 04:20 PM

Blade81,


...it's gone!

I ran a Smart Scan and there is now nothing showing.

I'll keep an eye out for anything suspicious. I'll maybe run a full scan in a day or two to be sure.

Thanks for giving up such a large portion of your weekend to fix my machine!

I really do appreciate your time and help.

Best wishes

#20 Blade81

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Posted 13 November 2011 - 04:45 PM

You're welcome :)

Please monitor situation for a few days and report back then.
Microsoft MVP Consumer Security 2008 2009 2010 2011 2012 2013

UNITE member since 2006

I don't help with logs thru PM so don't bother to post me one. If you have problems create a thread in the forum, please.
Don't post your log into other user's topic, create a new one.

Provided removal instructions are meant to be used in the correspondent user's case only.

Please use "Reply to this topic" -button while replying.




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