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a story about a girl and a trojan


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#1 lullabee

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Posted 08 January 2009 - 06:55 PM

as happens, i was minding my business on the internet one day, when a nasty trojan found me.
"i'll save you!" avast told me, and gave me all sorts of warnings. i dealt with things according to the recommended actions (that is, moving everything to the chest), as i am a STUPID GIRL and figured that would be enough.

several minutes later, it seemed to kick in. i'd get anywhere from five to twenty-one internet explorer popups at a time. this was especially odd since i use firefox to browse.
so i ran a full avast scan. it turned up nothing, which even as a STUPID GIRL i knew was a lie, since i should not be getting random internet explorer popups if there's nothing wrong with my system. i turned off system restore and scheduled a boot scan, shut down, and started back up. it turned up a bunch of filth in my windows folder, all of which i moved to the chest:

C:\DOUME~1\MYCOMP~1\LOCALS~1\Temp\3266417302.exe
virus description: Win32:Lighty-K [Cryp]

C:\Windows\Temp\TDSSc212.tmp
virus description: Win32:Tidserv [Trj]

C:\Windows\Temp\TDSSca11.tmp
virus description: Win32:Fasec [Trj]

C:\Windows\Temp\TDSScc92.tmp
virus description: Win32:Fasec [Trj]

C:\Windows\system32\TDSScrxx.dll
virus description: Win32:Fasec [Trj]

C:\Windows\system32\TDSScrxx.dll
virus description: Win32:Fasec [Trj]

C:\Windows\Temp\TDSSd4df.tmp
virus description: Win32:Fasec [Trj]

C:\Windows\Temp\TDSSd8c7.tmp
virus description: Win32:Fasec [Trj]

C:\Windows\system32\drivers\TDSSmxoe.sys
virus description: Win32:Tidserv [Trj]

C:\Windows\system32\TDSSncur.dll
virus description: Win32:Fasec [Trj]

C:\Windows\system32\TDSSoipa.dll
virus description: Win32:Fasec [Trj]

C:\Windows\system32\TDSSyavu.dll
virus description: Win32:Fasec [Trj]

C:\Windows\system32\wmzcoq.dll
virus description: Win32: Trojan-gen {Other}

i shut down and started up again (i suppose i should also mention that for some reason, ever since my computer was built, it has had issues restarting; i must shut it down and manually start it back up, or it will not boot). the popups had stopped. i thought that meant i'd fixed it, and so i attempted to resume my business. i decided i needed music to do so, so i started up itunes...
...only to have it immediately shut down on me.

this happened with a few other programs; it seems i cannot run anything but avast and internet browsers without them randomly closing. i ran a Hijack This scan, but as a STUPID GIRL i was intimidated by all the words (though it did not seem to pick up anything in my windows folder).

but here's the kicker: i run windows xp professional on a custom machine... and have recently moved from california to texas. all of my restore disks are, in fact, still in california, so reformatting is not an option.
so is there anything i can do about this?

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#2 rigel

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Posted 08 January 2009 - 07:15 PM

I have some bad news... You have a nasty rootkit :thumbsup:

IMPORTANT NOTE: One or more of the identified infections was related to a rootkit component. Rootkits and backdoor Trojan are very dangerous because they use advanced techniques (backdoors) as a means of accessing a computer system that bypasses security mechanisms and steal sensitive information which they send back to the hacker. Many rootkits can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. Remote attackers use backdoor Trojans and rootkits as part of an exploit to gain unauthorized access to a computer and take control of it without your knowledge.

If your computer was used for online banking, has credit card information or other sensitive data on it, all passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised. They should be changed by using a different computer and not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?

Although the rootkit was identified and removed, your PC has likely been compromised and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume that because the rootkit has been removed the computer is now secure. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. The malware may leave so many remnants behind that security tools cannot find them. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

"When should I re-format? How should I reinstall?"
"Help: I Got Hacked. Now What Do I Do?"
"Where to draw the line? When to recommend a format and reinstall?"

Should you decide not to follow that advice, we will do our best to help clean the computer of any infections but we cannot guarantee it to be trustworthy or that the removal will be successful.

I recommend starting in the HJT forum. Please follow this guide from step (6). Post a HJT log to the HJT forum and a Team member will be along to help you as soon as possible. You may wish to post a link back to this topic to see what was discussed thus far.

If you need any help with the guide, please let me know. Best wishes - you are in good hands.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith





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