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Trojan.Zeroaccess!inf need to block by SEP

Nagesh Singh

Nagesh SinghOct 01, 2012 12:54 PM

  • 1.  Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 09:42 AM

    Can you Please help me to create Intrusion prevention blocking policy for Trojan.Zeroaccess!inf  on SEPM.



  • 2.  RE: Trojan.Zeroaccess!inf need to block by SEP



  • 3.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Trusted Advisor
    Posted Oct 01, 2012 09:55 AM

    Hello,

    Trojan.Zeroaccess!inf is a detection for files that are infected by Trojan.Zeroaccess.

    Trojan.Zeroaccess Removal Tool 

    http://www.symantec.com/security_response/writeup.jsp?docid=2011-121607-4952-99

    Zeroaccess is a threat Security Response has been keeping a close eye on for some time.  In March the following whitepaper was released:

    Trojan.ZeroAccess Infection Analysis
    http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/trojan_zeroaccess_infection_analysis.pdf

    This August blog may also be of interest:

    Trojan.Zeroaccess.C Hidden in NTFS EA
    https://www-secure.symantec.com/connect/blogs/trojanzeroaccessc-hidden-ntfs-ea

    There are AV definitions and IPS signatures which can prevent Trojan.Zeroaccess from causing damage to a computer. (Please do be sure that IPS is in use in your organization- otherwise you are fighting with one arm ties behind your back!)  Manual action is necessary once this trojan is in place.  Luckily, for users of modern Windows OS's, this can be as simple as "restore previous version" of a file.  More details:

    http://www.symantec.com/security_response/writeup.jsp?docid=2012-080900-3758-99&tabid=3

    Zeroaccess is a serious threat.  A bit of public awareness can help admins to ensure their defenses are up.

    I would also suggest you to create a case with Symantec Technical Support.

    To Create a Case with Symantec Technical Support.

    How to create a new case in MySupport

    http://www.symantec.com/business/support/index?page=content&id=TECH58873

    Phone numbers to contact Tech Support:-
     
    Regional Support Telephone Numbers:
     
    United States: https://support.broadcom.com (407-357-7600 from outside the United States)
    Australia: 1300 365510 (+61 2 8220 7111 from outside Australia)
    United Kingdom: +44 (0) 870 606 6000
     
     
    Hope this helps!!!


  • 4.  RE: Trojan.Zeroaccess!inf need to block by SEP



  • 5.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 10:32 AM

    Daer Brian81,

     

    Thanks to response but can you please let me know how we'll get the report form SEPM to check whether same traffic is geeting block or not?



  • 6.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 10:41 AM

    Monitors tab

    Log tab

    Set Log type: Network Threat Protection

    Set Log content: Attacks

    Select your Time range

    Click Advanced Settings

    Set Event Type: Intrusion Prevention

    Click View Log



  • 7.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Trusted Advisor
    Posted Oct 01, 2012 10:48 AM

    Hello,

    I would suggets you to check this Article:

    Where are Intrusion Prevention events logged on the Symantec Endpoint Protection Client and Symantec Endpoint Protection Manager?

    http://www.symantec.com/docs/TECH95477

    Hope that helps!!



  • 8.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 10:55 AM

    Thanks to response but I am getting Trojan.Zeroaccess!inf in Security risks and unable to get the through Intrusion Prevention log.so can you please help me out in this.



  • 9.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 10:58 AM

    Because this isn't an intrusion prevention, it's actually on your system and attempting to infect you or already has.

    Run the removal tool:

    http://www.symantec.com/security_response/writeup.jsp?docid=2011-122009-5305-99&tabid=3



  • 10.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 11:18 AM

    We have already Run NPE Tools and done the safe mode scan but it comes again and again.

    so i just want to block it.

    User having Internet access,USB as well as CD-RW access from SEPM.



  • 11.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Trusted Advisor
    Posted Oct 01, 2012 11:23 AM

    Hello,

    I would suggest you to Enable the Risk Tracer - 

    1) About Risk Tracer

    http://www.symantec.com/docs/HOWTO27137

    2) What is Risk Tracer?

    http://www.symantec.com/docs/TECH102539

    3) How to use Risk Tracer to locate the source of a threat in Symantec Endpoint Protection

    http://www.symantec.com/docs/TECH94526

    Hope that helps!!



  • 12.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 11:39 AM

    You can use an application and device control to block these things.



  • 13.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 12:54 PM

    Can you please let us know how?



  • 14.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 12:56 PM

    How to block USB Thumb Drives and USB Hard Drives, but allow specific USB Drives in the Application and Device Control Policy in Symantec Endpoint Protection.

    http://www.symantec.com/business/support/index?page=content&id=TECH106304&locale=en_US



  • 15.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 01:14 PM

    No actually we need to allowed all the access to User and then we need to block Trojan.Zeroaccess!inf from SEP server.



  • 16.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 01:16 PM

    The file path of this Security Risk is 

    c:\RECYCLER\S-1-5-21-1454471165-746137067-1801674531-500\Dc5\A0014644.dll.

    and it always coming every second day.



  • 17.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 01:27 PM

    All Trojan.Zeroaccess!inf is is a malicous autorun.inf file. You need to block access to autorun.inf files. You can do this using an application control policy.

    Preventing viruses using "autorun.inf" from spreading with "Application and Device Control" policies in Symantec Endpoint Protection (SEP) 11.x and 12.1.x

    http://www.symantec.com/business/support/index?page=content&id=TECH104909



  • 18.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 01, 2012 02:22 PM

    Thanks

    How we can say that this infection coming because of "Autorun.inf".

    Even though User having full Internet access from SEPM so it might be coming through Internet.

     

     



  • 19.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 03, 2012 11:46 PM

    we have implimented the Intrusion protection and applied the autorun.inf but yet same Security risk found.

     

    Please help.

     

    Infection File Path:.

     

    c:\System Volume Information\_restore{5CA32C73-5FED-463B-94CC-1C35BC2377ED}\RP108\A0029599.dll


    C:\WINDOWS\system32\mcontrol.dll
     



  • 20.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Trusted Advisor
    Posted Oct 04, 2012 08:52 AM

    Hello,

    Any particular reason, you want to block these files? Are these files suspicious?

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

    https://submit.symantec.com/essential

    and 

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

    Note: ThreatExpert is owned by Symantec.

    I would request you to submit these files to understand if these files are malicious or not.

    Also, check these Article below:

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

    https://www-secure.symantec.com/connect/articles/using-symantec-support-tool-how-do-we-collect-suspicious-files-and-submit-same-symantec-sec

    Hope that helps!!



  • 21.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 04, 2012 01:54 PM

    Dear Mithun,

     Thanks to response but can you please tell me how we can remove the virus if we are getting infection in below paths. (Meanly in System Volume information).

    c:\System Volume Information\_restore {5CA32C73-5FED-463B-94CC-1C35BC2377ED}\RP108

    Please suggest.



  • 22.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Trusted Advisor
    Posted Oct 04, 2012 02:38 PM

    Hello,

    I would suggest you to disable the System Restore and Run a Full Scan on the machine.

    Hope that helps!!



  • 23.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 05, 2012 01:47 PM

    Dear Brian81,

    I have enable all the Signatures then also we have found system got infected by same virus.

    kindly suggest.



  • 24.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Broadcom Employee
    Posted Oct 05, 2012 01:50 PM

    its being detected right?

    can you run the scan in safe mode?



  • 25.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 05, 2012 02:01 PM

    As I have already mention in safe mode we are not getting any virus but after some day

    these are come on security Risk.



  • 26.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Broadcom Employee
    Posted Oct 05, 2012 02:11 PM

    can you chec kif any other source of infection is trying to infect?

    open a support ticket and ask for load point anlaysis



  • 27.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 05, 2012 02:19 PM

     we have made it cleary so many time but after 10 -15 days it seem to be again.

    How we can block it through Intrusion prevention system?

    Notepad:-

    (The system having sharing folder which are accessing by all the user.This is a dependence, we can't remove it)



  • 28.  RE: Trojan.Zeroaccess!inf need to block by SEP

    Posted Oct 27, 2012 09:37 AM

    Dear All,

    Still unable to stop it.in manual scan we are not getting any then but it’s always comes in Weekly schedule scan.

    Enable the HI policy as well as NTP but could not help it.

    Enable the risk trace but unable to get anything.

    Stop Autorun.inf" through ADC.

    Any More Suggestion.