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Thumbs.db2 virus

Migration User

Migration UserAug 22, 2012 10:12 AM

Migration User

Migration UserAug 22, 2012 10:18 AM

  • 1.  Thumbs.db2 virus

    Posted Aug 22, 2012 10:10 AM

    We are experiencing a virus calling itself thumbs.db2 or variant .dbh, or dbP.

    It targets Microsoft Office files seemingly Word , Excel and Powepoint, hiding the original file it replaces it with a modified shortcut .

     

    So the original file called in this instance "Application"  is hidden and replaced with a shortcut, this has the properties

    C:\WINDOWS\system32\cmd.exe /C start cmd.exe /C if exist \Immediacy\Training\TrainingPPoint\devleoper\c#\thumbs.dbg start \Immediacy\Training\TrainingPPoint\devleoper\c#\thumbs.dbg && start "" excel.exe "Applications.xls"

     

    Have issued a change to Group Policy to stop CMD from running  to limit it spreading.

    Reading other Forums it uses an Active X exploit spreading by attatchment in email, An Archive file containing the word document and fputlsd.dll, Active X calls this fake dll creates thumbs.db files the detected bn spreads.

     

    Although Symantec can detect the virus and quarantine it , there doesnt appear to be a fix anywhere on other fortums, and we are about to post a copy upto Symantec for evaluation.

    We are led to beleive CA Entrust, Malware Bytes, Kaspersky and AVG are known not to detect it at this time.ve

    If anyone has any further experience or has found a method of cleaning this virus would be grateful to hear via the Forum.

    Dave

     

     



  • 2.  RE: Thumbs.db2 virus

    Posted Aug 22, 2012 10:12 AM

    hi,

    What version SEPM you are using ?



  • 3.  RE: Thumbs.db2 virus

    Posted Aug 22, 2012 10:18 AM

    We are using 12.1.1000.157 RU1



  • 4.  RE: Thumbs.db2 virus

    Posted Aug 22, 2012 11:11 AM

    Oi
    THUMBS.DB2 é conhecido como:
    Backdoor.Capshaw
    THUMBS.DB2 hash:
    ■ MD5: ac1da38646893c8689371051da2ff1ca
    Como detectar rapidamente THUMBS.DB2 presença.

    %% \ Temp vírus
    Arquivos:
    ■ % Temp% \ virus \ $ RECmCLE.BIN
    ■ % Temp% \ virus \ desktop.iqi
    ■ % Temp% \ virus \ thumbs.db2

    hugs



  • 5.  RE: Thumbs.db2 virus

    Posted Aug 22, 2012 11:20 AM

    If anyone your system are infected please use this tool.

    Is your system infected? Symantec tools to help clear an infection

    https://www-secure.symantec.com/connect/forums/your-system-infected-symantec-tools-help-clear-infection

     

    Edit.

    http://arstechnica.com/civis/viewtopic.php?f=15&t=1180656

    del *.lnk /s
    attrib -h /s *.xls*
    attrib -h /s *.doc*
    attrib -h /s *.ppt*
    dir thumbs.db2 /s /ah
    pause
     



  • 6.  RE: Thumbs.db2 virus

    Trusted Advisor
    Posted Aug 23, 2012 03:50 AM

    Hello,

    I would request you to submit these Threat files to the Symantec Security Response Team on - 

    https://submit.symantec.com/websubmit/essential.cgi

    OR

    Using Symantec Support Tool, how do we Collect the Suspicious Files and Submit the same to Symantec Security Response Team. 

    This seems to be very similar to the Trojan.Shylock and the variant Trojan.Shylock!gen6

    A trojan horse that intercepts traffic and tries to add malicious code to it.

    Most commonly, the threat is experienced as detection on a file called thumbs.db[x], where X can be a letter or a number.a trojan horse that intercepts traffic and tries to add malicious code to it.

    Make sure you have all the machines updated with Latest Microsoft Security Patches and Service Packs and Symantec's Latest Virus Definitions.

    Hope that helps!!



  • 7.  RE: Thumbs.db2 virus

    Posted Aug 23, 2012 05:00 AM

    I can confirm that Symantec detects this MD5 (ac1da38646893c8689371051da2ff1ca) as "Trojan Horse" since 16 August. 

    Please do check the MD5 / submit any suspicious files that are in your organization!

    With many threats, the only Remediation possible is deletion of the threat and restoring any files that have been corrupted or damaged from a known good backup.

    Hope this helps! &: )



  • 8.  RE: Thumbs.db2 virus

    Posted Aug 23, 2012 06:50 AM

    Good Morning All,

    Firstly thank you all very much for taking the time to respond to our plight, I thought we were at last getting on top of things after the fire we also had last week.

    We uploaded the files to Symantec yesterday 15:30 GMT but had no response to confirm receipt will chase them next.

    It is being identified as Trjojan.Shylock so at least we know what wer are dealing with..

     

    Once again many thnaks for your inputs..

     

    Kindest Regards

     

    Dave

     



  • 9.  RE: Thumbs.db2 virus

    Trusted Advisor
    Posted Aug 23, 2012 07:15 AM

    Hello,

    Symantec's Latest variant of Detection from Trojan.Shylock is Trojan.Shylock!gen7

    Could please PM me with the Tracking #  which you may receive after submit the file to the Symantec Security Response along with Email address through which the submission was done?

    I would request you to submit the files on:

    http://www.threatexpert.com/submit.aspx

    Note: ThreatExpert is owned by Symantec.

    Hope that helps!



  • 10.  RE: Thumbs.db2 virus

    Posted Aug 24, 2012 04:57 AM

    Followers of this thread will be interested in this new blog:

    New Trojan.Shylock wave
    https://www-secure.symantec.com/connect/blogs/new-trojanshylock-wave

     



  • 11.  RE: Thumbs.db2 virus

    Posted Aug 27, 2012 04:44 AM

    hmm how's the update dbradberry?

     

    i haven't seen this threat yet... hopefully will never see them..

     

    any specific patch for Java/Windows?



  • 12.  RE: Thumbs.db2 virus

    Posted Aug 27, 2012 11:18 AM

    Sometimes, the use of MD5 trasformador helps to know the exact file name.



  • 13.  RE: Thumbs.db2 virus

    Posted Aug 27, 2012 11:21 AM

    Hi Dave,

    check this look here. I think it helps you.

    http://www.symantec.com/security_response/writeup.jsp?docid=2012-082310-2840-99



  • 14.  RE: Thumbs.db2 virus

    Posted Aug 30, 2012 11:45 AM

    Followers of this thread will be interested in this new blog:

    The Shylock “LNK” Awakening
    https://www-secure.symantec.com/connect/blogs/shylock-lnk-awakening



  • 15.  RE: Thumbs.db2 virus

    Posted Aug 30, 2012 04:55 PM

    Mick2009

    Thanks for the link the information contained within it describes quite well what we have experienced.

     



  • 16.  RE: Thumbs.db2 virus

    Trusted Advisor
    Posted Sep 03, 2012 10:16 AM

    Hello,

    Here is the Latest BLOG added in reference to the Java 0-day

    Java 0-Day Coverage

    http://bit.ly/NHJhid

    Hope that helps!!