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The malware challenge

 
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Antrax
ESL Student



PostPosted: Fri Oct 01, 2010 6:19 am    Post subject: 1 Reply with quote

I'm normally pretty adept at removing malware, but over the last couple of days I'm struggling with what seems to be God himself trying to phish me into buying fake anti virus programs. Because this is my work computer, I trusted work to handle updates and the such, but it seems there were multiple attack surfaces: old version of adobe reader plugin vulnerable to XSS and old versions of java vulnerable to an attack on java update. So, we can assume anything could've gotten in, as both allow remote code execution.
The current symptoms are as follows: booting into safe mode results in blue screen (PFN_LIST_CORRUPT) while normal boot works just file. Google search results that lead to sites that have keywords like "trojan" redirect to fake "buy my antivirus software". Using a VPN to connect to Intel's network eliminates this problem. Also, both browsers (IE and FF) crash randomly and fairly often if I'm not inside the VPN. For FF, running it in safe mode makes the crash problem disappear, but not the search hijack problem.

HijackThis, MWBAM, AAW, RAPIER and the Symantec crap find nothing wrong. Sysinternals rootkit revealer found a suspicious regkey for Software\IE\SearchScope that I eliminated, but that didn't change anything. MWBAM full scan, gmer and combofix all end in blue screen (IRQL_NOT_LESS_etc) which is most likely the result of my being unable to disable the McAfee antivirus on this computer (standard Intel IT build, requires a password I don't have).

So, ideas? I'm actually desperate enough to turn the computer to the notebook lab on Sunday and let them have a shot, but there are very low odds anyone there knows something I don't, so they're just likely to install Windows 7 (which I've been avoiding doing) as a "fix".
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Death Mage
Raving Lunatic



PostPosted: Fri Oct 01, 2010 7:52 am    Post subject: 2 Reply with quote

You have, of course, run it through the free on-line virus scan at Trend Micro (or attempted to)? Or tried Microsoft's version?

Might not work, but they don't cost.
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wordcross

<memstat>



PostPosted: Fri Oct 01, 2010 11:54 am    Post subject: 3 Reply with quote

I had a problem very similar to this a while back. I fixed it temporarily by running about five different adware/malware scans and trying a couple of different virus programs (AdAware, Spybot, McAfee, Avast, etc.) and a registry fixer I found via googling one of the popups (from another computer). My laptop seemed fixed for about 2 weeks before I saw more symptoms (even with new virus/malware protection). I ended up wiping and doing a clean install.
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Chaz
Vote: Zag



PostPosted: Fri Oct 01, 2010 12:05 pm    Post subject: 4 Reply with quote

Get Autoruns.
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx

Find the likely culprit--I usually Google anything I don't recognize.

Be careful with drivers... they're rarely mal-ware (though I have seen that happen, especially if your model is very popular)... if you get into a blue-screen on boot, try "Last Known Good Configuration."

After you've removed everything that seems suspect, find "refresh" (either in file, edit or view) and refresh it. Watch for stuff to "recheck" itself.

If something just won't go away, I hook the hdd up to another computer (a linux boot disc would also work) and manually delete the file(s) that are causing the problem--and by "delete", I mean "rename and move somewhere safe."

This methodology has only failed me once.
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jesternl
Yankee Doodle Dutchie



PostPosted: Fri Oct 01, 2010 6:05 pm    Post subject: 5 Reply with quote

What if you run IE without addons, still crashes/redirects?
Anyinthing in IE LAN settings ==> proxy server?
check C:\WINDOWS\system32\drivers\etc\hosts as well for any funky entries
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Chaz
Vote: Zag



PostPosted: Fri Oct 01, 2010 6:48 pm    Post subject: 6 Reply with quote

Antrax wrote:
So, ideas? I'm actually desperate enough to turn the computer to the notebook lab on Sunday and let them have a shot, but there are very low odds anyone there knows something I don't, so they're just likely to install Windows 7 (which I've been avoiding doing) as a "fix".

There also used to be a program called LSPFix. I didn't see that you haven't upgraded to 7 yet (I imagine LSP fix doesn't work with 7)

Personally, I would just upgrade to 7. I hated Vista, but 7 seems even better than XP was.
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Antrax
ESL Student



PostPosted: Fri Oct 01, 2010 7:51 pm    Post subject: 7 Reply with quote

Autoruns is good, never heard of it. Anyway, running some more stuff showed a pretty severe trojan infection, while fixing it I got a blue screen about winlogon.exe access violation and that's all my computer wrote. I'm officially giving up and giving it to the NB lab.
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Chaz
Vote: Zag



PostPosted: Fri Oct 01, 2010 7:58 pm    Post subject: 8 Reply with quote

Probably for the best. Seriously, Windows 7 is a lot better.

Also, system file checker is probably what you're looking for next if you just can't admit defeat and winlogin.exe is hosed..
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Logain
Stretch Armstrong



PostPosted: Sun Oct 03, 2010 2:41 am    Post subject: 9 Reply with quote

You should post the following to help:
a list of the running processes tab under Windows Task manager.
a list of what's in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run from regedit
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Antrax
ESL Student



PostPosted: Sun Oct 03, 2010 5:00 am    Post subject: 10 Reply with quote

Thanks Logain, but a) it's much too late for that and b) Those steps I've actually already gone through. I'm not inexperienced with malware, this is just the first trojan I see to use these techniques (disable safe mode and manage to bypass rootkit revealers)
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Suspence
Daedalian Member



PostPosted: Mon Aug 22, 2011 5:10 pm    Post subject: 11 Reply with quote

Turning to the GL for help. My PC seems to have gotten a virus, which I've always been able to kill in the past using RKill and Malwarebytes. This time around, no such luck. Symptoms:

1) All google links redirect to 2dayoftheweek.com (though the URL appears correct, the page I am actually brought to is not). As long as I type the URL in, it works fine, as do all non-Google links I've tried

2) All malware programs are shut down very shortly after they start, including RKill, Malwarebytes AntiMalware, AdAware and a host of others. In addition, the link to these programs no longer work after they are shut down, so I need to re-download them to try again.

3) Command Prompt is disabled.

I've searched for solutions everywhere, but have hit dead ends for 2 days straight. Any help?
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extropalopakettle
No offense, but....



PostPosted: Mon Aug 22, 2011 5:33 pm    Post subject: 12 Reply with quote

Suspence wrote:
1) All google links redirect to 2dayoftheweek.com ...


The domain was only registered 11 days ago. Google turns up quite a few requests for help in various forums in the last few days.
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Suspence
Daedalian Member



PostPosted: Mon Aug 22, 2011 5:40 pm    Post subject: 13 Reply with quote

I've also run TDSS Killer that many of those threads recommend, however like all the other malware programs I've run, it quickly gets killed off.
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extropalopakettle
No offense, but....



PostPosted: Mon Aug 22, 2011 5:46 pm    Post subject: 14 Reply with quote

extropalopakettle wrote:
Suspence wrote:
1) All google links redirect to 2dayoftheweek.com ...


The domain was only registered 11 days ago. Google turns up quite a few requests for help in various forums in the last few days.


And the domains 1dayoftheweek through 7dayoftheweek were registered at the same time.
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extropalopakettle
No offense, but....



PostPosted: Mon Aug 22, 2011 5:54 pm    Post subject: 15 Reply with quote

Spybot (and I'd imagine other malware removal tools) has a bootable CD, but it's not free: http://www.safer-networking.org/en/bootablecd/index.html

I'd imagine you might need such a thing (boot from CD, so no malware on hard drive has a chance to be active), but this thing sounds like it's new enough that I wouldn't be sure what yet knows how to deal with it.
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extropalopakettle
No offense, but....



PostPosted: Mon Aug 22, 2011 6:02 pm    Post subject: 16 Reply with quote

Maybe this? http://www.ubcd4win.com/index.htm
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Suspence
Daedalian Member



PostPosted: Mon Aug 22, 2011 9:29 pm    Post subject: 17 Reply with quote

No luck with that either.
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Sessie
Saucy Chica



PostPosted: Mon Aug 22, 2011 11:37 pm    Post subject: 18 Reply with quote

Are you able to boot into safe mode? Can you get a HijackThis log?

You could also try Avast (www.avast.com)...when you install it, you have the option to run a full scan at bootup, before your OS starts. That's another option, maybe the malware won't be able to catch it at that point.

Scratch that last bit...apparently you no longer have that option with Avast. Blah.
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Suspence
Daedalian Member



PostPosted: Tue Aug 23, 2011 12:18 am    Post subject: 19 Reply with quote

I am able to boot into Safe Mode, but experience all the same issues. As for HijackThis, I downloaded, installed, and ran.

As with everything else, it began to scan, closed down after a few seconds, and the program is no longer accessible (Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access this file)
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Sessie
Saucy Chica



PostPosted: Tue Aug 23, 2011 1:34 am    Post subject: 20 Reply with quote

Hmm...it's tough to say without seeing it. I'm with extro on the bootable CD being your best bet as far as attacking this thing...the problem is how to create the CD when it kills everything you try to do. I don't suppose you've got another computer handy to create a UBCD?
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MNOWAX
0.999... of a Troll



PostPosted: Tue Aug 23, 2011 3:00 am    Post subject: 21 Reply with quote

I hate to say this mainly because its is a program that is very dangerous to work with, but you can use something called ComboFix.

This is a program to be used as a last resort only, and if you can not find any other way of defusing it. This program will supersede most anything out there, and you should be able to run it in safe mode without a problem. download a clean copy of it, and use a flash drive to bring it to the infected pc, and run it. It is a one time use program only, so if for some reason it doesn't work, you will have to download another copy and start again.

Good luck to you!
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Antrax
ESL Student



PostPosted: Tue Aug 23, 2011 5:07 am    Post subject: 22 Reply with quote

Before combofix, some sillier things:
a) Have you tried renaming the executable for these (hijackthis, anti-spyware of all sorts) programs before running them?
b) Does "msconfig" work? Does regedit?
c) Can you run "services.msc" and disable services?
d) Did you have system restore on before this happened?
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Suspence
Daedalian Member



PostPosted: Tue Aug 23, 2011 2:04 pm    Post subject: 23 Reply with quote

I found an old Kaspersky iso file and used it as a bootable disc, which seemed to work except for the fact that it was too old. I'd need something current to run a scan as a bootable disc.

I believe I tried combofix as well, though not by downloading it on a clean computer so I can look into that.

As to Ant's questions:

a) Have you tried renaming the executable for these (hijackthis, anti-spyware of all sorts) programs before running them?

Yes, no dice. Same thing happens. Another symptom I've noticed is that these exe files I've downloaded can't be deleted from my desktop (or renamed, etc) once the virus has killed the program.

b) Does "msconfig" work? Does regedit?


Yes and yes.

c) Can you run "services.msc" and disable services?


Yes, but I'm not sure what to disable.

d) Did you have system restore on before this happened?

Nope.
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Antrax
ESL Student



PostPosted: Tue Aug 23, 2011 2:30 pm    Post subject: 24 Reply with quote

Well, I believe Alvira have a bootable CD you can download: https://www.avira.com/en/support-download-avira-antivir-rescue-system
And I think I heard AVG has one as well - http://www.avg.com/us-en/download-file-cd-arl-iso

In "msconfig" you have a services tab, and there you can check "hide Windows services". See if anything stands out from what remains.
BTW, can you run sysinternals rootkit revealer?
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Suspence
Daedalian Member



PostPosted: Tue Aug 23, 2011 2:35 pm    Post subject: 25 Reply with quote

I tried the Avira rescue CD last night as well. It gave me a picture of 4 Linux penguins, then everything went dark and nothing seemed to ever happen.
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Poisonium
annoyed by the old



PostPosted: Tue Aug 23, 2011 2:48 pm    Post subject: 26 Reply with quote

There's also this Knoppix derivative: http://www.f-secure.com/en_EMEA-Labs/security-threats/tools/rescue-cd/
I haven't tested it though.
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MatthewV
Daedalian Member :_



PostPosted: Tue Aug 23, 2011 6:13 pm    Post subject: 27 Reply with quote

Couldn't you just get your personal files off the computer and do a complete reinstall?
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Suspence
Daedalian Member



PostPosted: Wed Aug 24, 2011 5:56 pm    Post subject: 28 Reply with quote

Since it was a work laptop, I ultimately surrendered and turned it over to IT. 36 hours later, all is good with the world. Thanks for the suggestions...
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Antrax
ESL Student



PostPosted: Wed Aug 24, 2011 6:00 pm    Post subject: 29 Reply with quote

That's no fun Razz They probably just ghosted it or something.
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Sniklac16
Spaciest of aides



PostPosted: Thu Aug 25, 2011 1:19 pm    Post subject: 30 Reply with quote

Try using malwarebytes, it's a really good program and it's free to download and use. I've used it several times and it's saved my computer a couple times
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Suspence
Daedalian Member



PostPosted: Thu Aug 25, 2011 4:49 pm    Post subject: 31 Reply with quote

Agreed that Malwarebytes works really well typically, but that was one of the symptoms of whatever I had (see post 11). All anti-virus and anti-malware scans were being killed immediately.
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MatthewV
Daedalian Member :_



PostPosted: Thu Aug 25, 2011 5:46 pm    Post subject: 32 Reply with quote

So what did you do to get this malware?? As it was a work computer, hopefully it wasn't a random p0rn site...
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Samadhi
+1



PostPosted: Thu Aug 25, 2011 6:36 pm    Post subject: 33 Reply with quote

Now if it were pseudo random, carry on.
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