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Trojan.Agent.H Infection


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#1 musctbrian

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Posted 27 October 2010 - 03:51 AM

Malwarebytes reports infection by Trojan.Agen.H. This reappears every time I boot up, even though MWB quarantines it. I have tried to run GMER to analyse the rootkit activity, but the computer crashes every time I run this - either re-starts itself or Iget the Blue Screen of Death.

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#2 boopme

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Posted 27 October 2010 - 03:32 PM

Hello and welcome. We need to di a few things.

Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal/regular mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.



ESET Online scan
Please perform a scan with Eset Online Antiivirus Scanner.
(Requires Internet Explorer to work. If given the option, choose "Quarantine" instead of delete.)
Vista users need to run Internet Explorer as Administrator. Right-click on the IE icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run as Administrator from the context menu.
  • Click the green ESET Online Scanner button.
  • Read the End User License Agreement and check the box: YES, I accept the Terms of Use.
  • Click on the Start button next to it.
  • You may receive an alert on the address bar that "This site might require the following ActiveX control...Click here to install...". Click on that alert and then click Insall ActiveX component.
  • A new window will appear asking "Do you want to install this software?"".
  • Answer Yes to download and install the ActiveX controls that allows the scan to run.
  • Click Start.
  • Check Remove found threats and Scan potentially unwanted applications.
  • Click Scan to start. (please be patient as the scan could take some time to complete)
  • If offered the option to get information or buy software. Just close the window.
  • When the scan has finished, a log.txt file will be created and automatically saved in the C:\Program Files\ESET\ESET Online Scanner\log.txt
    folder.
  • Click Posted Image > Run..., then copy and paste this command into the open box: C:\Program Files\ESET\EsetOnlineScanner\log.txt
  • The scan results will open in Notepad. Copy and paste the contents of log.txt in your next reply.
Note: Some online scanners will detect existing anti-virus software and refuse to cooperate. You may have to disable the real-time protection components of your existing anti-virus and try running the scan again. If you do this, remember to turn them back on after you are finished.
NOTE: In some instances if no malware is found there will be no log produced.


Sophos Anti-rootkit
Please download Sophos Anti-rootkit & save it to your desktop.
alternate download link
Note: If using the vendor's download site you will be asked to register with MySophos so an email containing an activation link can be sent to your email address.

Be sure to print out and read the Sophos Anti-Rookit User Manual and Release Notes.
  • Double-click sar_15_sfx.exe to begin the installation, read the license agreement and click Accept.
  • Allow the default location of C:\Program Files\Sophos\Sophos Anti-Rootkit and click Install.
  • A message will appear "Sophos Anti-Rootkit was successfully installed. Click 'yes' to start it now".
  • Click Yes and allow the driver and its randomly named .tmp file (i.e. F.tmp) to load if asked.
  • If the scan did not start automatically, make sure the following are checked:
    • Running processes
    • Windows Registry
    • Local Hard Drives
  • Click Start scan.
  • Sophos Anti-Rootkit will scan the selected areas and display any suspicious files in the upper panel.
  • When the scan is complete, a pop-up screen will appear with "Rootkit Scan Results". Click OK to continue.
  • Click on the suspicious file to display more information about it in the lower panel which also includes whether the item is recommended for removal.
    • Files tagged as Removable: No are not marked for removal and cannot be removed.
    • Files tagged as Removable: Yes (clean up recommended) are marked for removal by default.
    • Files tagged as Removable: Yes (but clean up not recommended) are not marked for removal because Sophos did not recognize them. These files will require further investigation.
  • Select only items recommended for removal, then click "Clean up checked items". You will be asked to confirm, click Yes.
  • A pop up window will appear advising the cleanup will finish when you restart your computer. Click Restart Now.
  • After reboot, a dialog box displays the files you selected for removal and the action taken.
  • Click Empty list and then click Continue to re-scan your computer a second time to ensure everything was cleaned.
  • When done, go to Start > Run and type or copy/paste: %temp%\sarscan.log
  • This should open the log from the rootkit scan. Please post this log in your next reply. If you have a problem, you can find sarscan.log in C:\Documents and Settings\<username>\Local Settings\Temp\.
Before performing an ARK scan it is recommended to do the following to ensure more accurate results and avoid common issues that may cause false detections.
  • Disconnect from the Internet or physically unplug you Internet cable connection.
  • Clean out your temporary files.
  • Close all open programs, scheduling/updating tasks and background processes that might activate during the scan including the screensaver.
  • Temporarily disable your anti-virus and real-time anti-spyware protection.
  • After starting the scan, do not use the computer until the scan has completed.
  • When finished, re-enable your anti-virus/anti-malware (or reboot) and then you can reconnect to the Internet.

How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#3 musctbrian

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Posted 28 October 2010 - 11:56 AM

OK Thanks for the detailed list - quite a marathon waiting for the scans to complete. MBAM reported trojan.agent.h and then quarantined it. ESET reported nothing found. Sophos identified a dozen files in temporary internet stuff (although I'd cleared that before running Sophos) so although they weren't identified as suitable for clearing, I cleared them anyway, assuming they weren't useful. Second scan came up with some new files, which were less obvious about their potential for removing, so I left them. I've pasted the logfile below.

I had a problem with the 'run as administrator' which didn't seem to be available to me. I had to enable the administrator profile, which means I have to switch in and out of administratore and my own profile to run these things - a right pain. Not sure what's going on, I thought I gave myself administrtor rights when I created my profile?

Here's the log:


Sophos Anti-Rootkit Version 1.5.4 © 2009 Sophos Plc
Started logging on 10/28/2010 at 14:04:48 PM
User "Administrator" on computer "USER-PC"
Windows version 6.0 SP 2.0 Service Pack 2 build 6002 SM=0x100 PT=0x1 Win32
Info: Starting process scan.
Info: Starting registry scan.
Info: Starting disk scan of C: (NTFS).
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\3XHLEEE7\s;u=,ns-42373909_1288094867,11c0c3188287e54,Miscellaneous,;;ppos=atf;kw=;tile=1;sz=728x25;net=ns;ord1=594124;contx=Miscellaneous;dc=w;btg=;ord=9839269143053612[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\RP61BCTQ\=ns;u=,ns-16582440_1288094882,11c0c3188287e54,Miscellaneous,;;ppos=atf;kw=;tile=1;sz=728x25;net=ns;ord1=797771;contx=Miscellaneous;dc=w;btg=;ord=45975976764522[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\N74MK3P1\0646920_1288094890,11c0c3188287e54,Miscellaneous,;;ppos=btf;kw=;tile=2;sz=300x250,336x280;net=ns;ord1=114950;contx=Miscellaneous;dc=w;btg=;ord=4250810897234415[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\N74MK3P1\8469334_1288094893,11c0c3188287e54,Miscellaneous,;;ppos=btf;kw=;tile=1;sz=300x250,336x280;net=ns;ord1=180538;contx=Miscellaneous;dc=w;btg=;ord=9839269143053612[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\1ESSX3TR\5242244_1288094897,11c0c3188287e54,Miscellaneous,;;ppos=btf;kw=;tile=2;sz=300x250,336x280;net=ns;ord1=491378;contx=Miscellaneous;dc=w;btg=;ord=9839269143053612[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\RP61BCTQ\s;u=,ns-57938810_1288094949,11c0c3188287e54,Miscellaneous,;;ppos=atf;kw=;tile=1;sz=728x25;net=ns;ord1=501136;contx=Miscellaneous;dc=w;btg=;ord=7843190634690653[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\1ESSX3TR\9658172_1288094952,11c0c3188287e54,Miscellaneous,;;ppos=btf;kw=;tile=1;sz=300x250,336x280;net=ns;ord1=278958;contx=Miscellaneous;dc=w;btg=;ord=7843190634690653[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\3XHLEEE7\5120319_1288094956,11c0c3188287e54,Miscellaneous,;;ppos=btf;kw=;tile=2;sz=300x250,336x280;net=ns;ord1=365190;contx=Miscellaneous;dc=w;btg=;ord=7843190634690653[1]
Hidden: file C:\Users\Guest\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\R2A0KCOX\e_above;net=idgt;u=,idgt-77550288_1273404982,118a09bc0683ddf,server,;;tile=2;ord1=253709;fold=above;sec=home;sz=300x250;contx=server;btg=;ord=3914544428109406[1]
Hidden: file C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DD41UUOF\1.007+vmuk38268.007+vmuk38117.001+vmuk38082.004+vmuk38220.001+vmuk38196.002+vmuk38133[1].005;kwlp2=;kwlp3=autotrader_general;;grp=20420207;misc=856955524;rdclick=
Info: Starting disk scan of D: (NTFS).
Stopped logging on 10/28/2010 at 15:28:12 PM


Sophos Anti-Rootkit Version 1.5.4 © 2009 Sophos Plc
Started logging on 10/28/2010 at 15:48:02 PM
User "Administrator" on computer "USER-PC"
Windows version 6.0 SP 2.0 Service Pack 2 build 6002 SM=0x100 PT=0x1 Win32
Info: Starting process scan.
Info: Starting registry scan.
Info: Starting disk scan of C: (NTFS).
Hidden: file C:\Windows\winsxs\x86_microsoft-windows-p..rastructureconsumer_31bf3856ad364e35_6.0.6001.18000_none_b3dc8e9f30720cdd\pdh.dll
Hidden: file C:\Windows\Temp\TMP0000001D5ED8A30764746B31
Hidden: file C:\ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles\00010001.wid
Hidden: file C:\ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles\00010003.wid
Hidden: file C:\ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles\00010003.ci
Hidden: file C:\ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles\00010003.dir
Hidden: file C:\ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles\00010004.ci
Hidden: file C:\ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles\00010004.dir
Info: Starting disk scan of D: (NTFS).
Stopped logging on 10/28/2010 at 17:21:47 PM

Thanks again for the help.

#4 boopme

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Posted 29 October 2010 - 10:53 AM

Hi, how is it running now??
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 musctbrian

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Posted 01 November 2010 - 11:58 AM

Hi, seemed OK but I ran MBAM today and found trojan.agent.h again. Here's the logfile:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4971

Windows 6.0.6002 Service Pack 2
Internet Explorer 8.0.6001.18975

01/11/2010 16:53:50
mbam-log-2010-11-01 (16-53-50).txt

Scan type: Quick scan
Objects scanned: 174735
Time elapsed: 8 minute(s), 18 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: 0

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\Run\gassffg (Trojan.Agent.H) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)


Thanks

#6 boopme

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Posted 01 November 2010 - 02:36 PM

Herllo, this is going to require some different tools to remove and a DDS log.
Please go here....
Preparation Guide ,do steps 6 - 9.

Create a DDS log and post it in the new topic explained in step 9,which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
If Gmer won't run,skip it and move on.
Let me know if that went well.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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