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Malware disabled HJT, Malwarebytes, and AV

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4 replies to this topic

#1 Mike303


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Posted 08 October 2011 - 10:12 AM

Hi there, first off thanks for having a forum like this.
System: WinXP home edition SP3. Main browser FF 3.16. AV: Avast! AntiVirus 6.0.1203; Others: MalwareBytes, SpyBot S&D latest version, definitions updated a week ago.

I'm not sure what I got infected with but the behavior I have been seeing is:
redirects from Google searches, after a few times browser (FF 3.16 IIRC) hangs entirely.
Tried launching chrome instead, will not start. Rebooted system, came up with BSOD: System error code 1000 008e, parameters C000 0005, 805ce 1cc7, f7b0 2c74, 0000 0000

HJT will not run, error msg: Windows cannot access the specified device, path, or file. you may not have appropriate permissions to access the item. Same message when attempting to run Malware Bytes. When attempting to rename file, result is error that it is unable to rename the file, make sure device is not write protected or the file is not already in use. Same behavior when logged in as admin or user account in safe mode.

However, from USB in safe mode, I am able to run HJT. parsed log through www.hijackthis.de and hjt.networktechs.com with no suspect entries found.

Have DDS logs, can upload if requested. I am using a laptop as infected PC is very unresponsive right now, screenshots will be difficult if not impossible to achieve.

GMER found nothing suspect.

Attempted system restore, after reboot got failure message stating that nothing was changed.

Avast! antivirus is disabled, attempts to start services fail with a message about not being able to reach endpoint. Haven't captured the exact text, but can try again in a while. Currently Avast will run a scan in safe mode, and I running that now. It has already found one infected file. In quick scan, it has already run for over 30 minutes and shows 99% complete but is in C:\program files\ right now so will not be done for some time.

While running DDS I got some messages from my firewall (PC Tools Firewall Plus) about something trying to access the MBR. I thought it was part of DDS scanning but I was concerned about the MBR part so I enabled the first alert but the second one raised my suspicions so I blocked subsequent attempts. I couldn't find a log file in the firewall program folder, but next time I reboot I will go into the firewall GUI and see if I can pull a log from there.

I can normally fix these by myself but I get stumped when they disable my tools. I got avast in part because it pops a warning you try to change it, which made me think no rogue process or service could disable it w/o my knowledge. I'd really like to know what this is just so I can learn about it.

Thanks for any assistance

Edited by Mike303, 08 October 2011 - 10:18 AM.

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#2 Orange Blossom

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Posted 08 October 2011 - 11:26 AM


Please post the DDS and GMER logs in a reply to this topic.

Please note that I am not a member of the Malware Removal Team and will not be assisting you in removing the infection. I'm simply helping you to post the information they need in order to assist you.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

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Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

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#3 Mike303

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Posted 08 October 2011 - 11:54 AM

Here are the logfiles requested. Thanks for any insight.

Update: I think I got it out. I'm listing what I did here so that the kind experts here may tell me if there's anything I did that was monumentally dumb, or even unwise. TDSSKiller found a service named "1805321505:3740951700" (probably random combo of numbers) which I thought I had blocked with WinPatrol, but had found its way into the registry and c:\Windows folder. Unfortunately it got into my Afd driver registry entries, so TDSSKiller simply deleted the keys leaving me unable to connect to the internet after reboot.

Reinstalled Afd.sys from latest windows update to drivers folder, and copied an Afd registry key from another forum into a .reg file. I know this is risky but I was about to give in and reformat anyway. Luckily it worked and I was back online. I still didn't have access to the tools though, making me think the malware was still active. Uninstalled and reinstalled Avast and MBAM, but eventually found out I could change the file permissions in Safe Mode (Right click -> Security).

DOS has an analogue of chmod called cacls, in hindsight that probably would have saved me a few reboots.

MBAM came back clean on the second scan after reinstall but Avast kept finding more trojan/worm variants in the system restore folder. Restore wasn't working anyway so I turned it off and ran Avast again. Clean. Updated MBAM and ran again just for good measure and it came back clean too. So far no further symptoms. I'm attaching before and after logs in zip format. Remaining questions:
1 - Does it look clean now?
2 - Anything else I should do to prevent reinfection?
3 - Could there have been an easier way than scanning multiple times with various tools to remove this infection?

Attached Files

Edited by Mike303, 09 October 2011 - 10:56 AM.

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Posted 13 October 2011 - 10:15 AM

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We need to see some information about what is happening in your machine. Please perform the following scan again:

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Posted 15 October 2011 - 09:02 AM

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