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Rootkit infection, can't get rid of it.


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#1 DarcSystems

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Posted 27 October 2017 - 03:44 PM

The other day, I was stupid and didn't take precaution when launching some software, the result was what I believe to be a rootkit attack. It did several things to my system, most of which I was able to stop and clean up, but there is still a process that I cannot seem to stop, no matter how hard I've tried. I've gone through quite a few steps to resolve it but everything I've thrown at it seems to fail at removing it. My guess is it's a variation of the SmartService rootkit, but I could be wrong. I'll give the details of what I know, and if someone could steer me in the right direction, that would be great.

 

I launched a setup file, which then slapped me with a bunch of random programs and loaded my desktop with 4 or 5 icons for installing games or whatnot. It also reset all my default applications to factory (i.e. Browser is now Edge instead of Firefox, etc.) and it disabled all my add-ons in firefox. When I relaunched firefox, there was a prompt at the bottom telling me something like "this plugin allows us to mine for bitcoin, would you like to keep it enabled?" so I said no. There was no trace of said plugin in my about:addons, so who knows what that was. It also put a bunch of random folders and programs around my system in various places that launched a process called "Hobnobbed". I cleaned all traces and instances of that. It has put 2 folders in my %user%\appdata\local folder that seem to be running a process called "Windows Process Manager (32 Bit)" that I cannot end in the process manager. I also cannot access or delete those folders. I get an access denied error, that claims I need administrator rights (I am the admin, I even tried activating the administrator account on this computer and doing it from there, no luck).

 

It also made pretty much every anti-virus on the market an untrusted certificate. I discovered this when I tried to launch Malwarebytes, and it told me it stopped it for my safety. I tried reinstalling it, and same thing. I cleared the untrusted certificates, and it worked fine. I'm still having problems launching other anti-virus/malware setups or applications though. I even had to rename HiJackThis to something else so I could run it.

 

I tried running rKill, it didn't find anything. I tried running Sophos virus removal, and it did pop that file in the local folder, but was unable to remove it. I tried all of the above in SafeMode too, with the same results. The folders I cannot gain access too, I tried deleting with IOBit Unlocker, and Lockhunter.

 

I also was able to browse the folder when I opened the location in VirusTotal scanner, but wasn't able to scan any of the files due to failed access.

 

If anyone has any clue what I should try next, or anything, I'm desperate here. :(

 

Thanks in advance.



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#2 DarcSystems

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Posted 27 October 2017 - 11:53 PM

Been plugging away, and thought I'd post an update. I made a linux boot disk and was able to delete the folders from Ubuntu. Rebooted the computer into safemode, the folders remained delete. Ran a malwarebytes scan, and it came up clean. Rebooted normally, and the problematic folder remade itself, and that Windows Process Manager (32 bit) is running again. There must be a start up item that is creating this, but I'm not sure how to find it. I'm not that clever with this kind of stuff.

 

My startup items all look fairly normal, but I could be wrong. Also, I suppose if it's a rootkit thing, it would be loading something with my boot records, or some junk.



#3 DarcSystems

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Posted 28 October 2017 - 01:03 AM

Update #2.

 

Back to Linux, I removed the problem folder that was creating itself in my appdata\local folder, and also deleted a system file named dwetwzdg.sys

 

So far so good. I'm in Windows, and the Windows Process Manager (32 bit) hasn't resurfaced. Thats just a start though, as I still cannot launch various anti-virus programs or rootkit removal tools, so something is still blocking me somewhere, but at least I can rest easy knowing that process isn't running in the background anymore (sometimes with multiple instances, up to 5 or 6.)

 

I don't know if this gets me any closer to a victory, but I think it's a good starting point.



#4 DarcSystems

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Posted 28 October 2017 - 07:48 PM

Ok, I think I was successful. This was by far the worst virus I've been up against in terms of how much damage it did, aside from an old one back in 95 that would automatically infect every floppy disk I used. Haha.

 

But, from what I can tell, all traces of the virus are gone, and all programs launch fine now. Avast anti rootkit scanner DOES trigger a blue screen half way through the scan, but I don't think it's related, and the scan doesn't come up with anything anyway. Thanks for following me on my journey. :D



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