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very bad UAC and getting worse [Moved]


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#1 BobNeedHelp

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Posted 25 August 2009 - 12:25 AM

Hi,
I have an XP Home computer that picked up UAC yesterday and has proven very difficult to clean up. I have cleaned other systems before with instructions and tools recommended here, but this time, each attempt I make seems to make it madder. It has blocked safe mode, MBAM and ComboFix from running, and now on reboot won't even start up the Windows UI correctly (meaning no menu bar, no desktop icons). I can ctl+alt+del and get task manager, and that's about it.

From task manager, I can get RootRepeal to run (by browsing to a USB stick that has the .exe) but it runs a few seconds and then disappears.

There are two .exe's and a .bat in c:\ with random characters as the file names. I can see c:\windows\system32\uacinit.dll and 5 other UAC+10 random character.dll files and a few UAC .dat files but no good idea of how to remove them.

Any thoughts on how to get started with a clean up will be greatly appreciated.
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#2 Orange Blossom

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Posted 25 August 2009 - 02:19 AM

As no logs have been posted, I am shifting this topic from the specialized HiJack This forum to the Am I Infected forum.

==>PLEASE DO NOT NOW POST LOGS<== unless a log is specifically requested.
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 BobNeedHelp

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Posted 26 August 2009 - 08:09 AM

I couldn't figure this out, so laid down a new XP last night. seems all is recovered now.

The behavior of the infected systems was the same as I saw described by "resistol" this morning:
started off looking like Braviax, but went downhill from there. When I realized it was UACxxxxx.sys I could no longer run any cleanup tools, this thing seemed to know how to block all. I tried MBAM, SDFix, ComboFix, and RootRepeal. Towards the end, the whole windows UI disappeared (no taskbar, etc.) and could only run task manager.

#4 garmanma

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Posted 27 August 2009 - 08:19 PM

We are seeing this more and more
You did the right thing by reinstalling
Mark
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