Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Nasty back door virus? [Moved]


  • Please log in to reply
5 replies to this topic

#1 I am the Walrus

I am the Walrus

  • Members
  • 103 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:California
  • Local time:09:58 AM

Posted 13 July 2009 - 11:11 PM

I must say first that I tell everyone about you and your awesome tech's! I found a similar ploblem in the forums that was closed however and as you have time and time again shown me how to fix a nasty problem. This is a gateway with Pentium III 1 Ghz 512 mb RAM PC 133. It started with a full screen warning about how infected the pc was and I was unable to open any desktop items or use the task manager. I tried to access my run/msconfig looking for something running that was wrong but that wouldn't open either. I downloaded an updated version of malwarebyte antimalware onto a flash drive on another clean system and then after renaming it I was able to run in the safe mode it along with the superantispyware programs. Now, when I went to look at the logs it(?) blocked those from opening also!! I am also hearing unauthorized audio feeding???Help!

BC AdBot (Login to Remove)

 


#2 Orange Blossom

Orange Blossom

    OBleepin Investigator


  • Moderator
  • 37,011 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Location:Bloomington, IN
  • Local time:01:58 PM

Posted 14 July 2009 - 04:59 PM

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.

Orange Blossom

An ounce of prevention is worth a pound of cure

SpywareBlaster, WinPatrol Plus, ESET Smart Security, Malwarebytes' Anti-Malware, NoScript Firefox ext., Norton noscript

#3 DaChew

DaChew

    Visiting Alien


  • Members
  • 10,317 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:millenium falcon and rockytop
  • Local time:01:58 PM

Posted 14 July 2009 - 05:21 PM

Before we start fixing anything you should print out these instructions or copy them to a NotePad file so they will be accessible. Some steps will require you to disconnect from the Internet or use Safe Mode and you will not have access to this page.

Please download DrWeb-CureIt and save it to your desktop. DO NOT perform a scan yet.

Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with Dr.Web CureIt as follows:
  • Double-click on launch.exe to open the program and click Start. (There is no need to update if you just downloaded the most current version
  • Read the Virus check by DrWeb scanner prompt and click Ok where asked to Start scan now? Allow the setup.exe to load if asked by any of your security programs.
  • The Express scan will automatically begin.
    (This is a short scan of files currently running in memory, boot sectors, and targeted folders).
  • If prompted to dowload the Full version Free Trial, ignore and click the X to close the window.
  • If an infected object is found, you will be prompted to move anything that cannot be cured. Click Yes to All.
  • When complete, click Select All, then choose Cure > Move incurable.
    (This will move any detected files to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if they can't be cured)
  • Now put a check next to Complete scan to scan all local disks and removable media.
  • In the top menu, click Settings > Change settings, and UNcheck "Heuristic analysis" under the "Scanning" tab, then click Ok.
  • Back at the main window, click the green arrow "Start Scanning" button on the right under the Dr.Web logo.
  • When the scan is complete, a message will be displayed at the bottom indicating if any viruses were found.
  • Click "Yes to all" if asked to cure or move the file(s) and select "Move incurable".
  • In the top menu, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop.
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
  • After reboot, post the contents of the log from Dr.Web in your next reply. (You can use Notepad to open the DrWeb.cvs report)

Chewy

No. Try not. Do... or do not. There is no try.

#4 I am the Walrus

I am the Walrus
  • Topic Starter

  • Members
  • 103 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:California
  • Local time:09:58 AM

Posted 16 July 2009 - 12:12 AM

Thank you Chewy,
here is the DrWeb log;
aulbum barbara mason greastest - best track ever.mp3;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
drinking dreaming merl haggard unreleased version.snd;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
if it ant onething another (rare studio version).au;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
lala means i love you original studio version.mp3;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
rockin boots h town - best track ever.mp3;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
sly slick wicked - greatest hits.mp3;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
smoky robinson & miracals.au;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
still water by four tops hits live at vegas.snd;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
temptations greatest hits [new album].au;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
youll lose good thing.snd;C:\Documents and Settings\jerry\My Documents\My Music;Trojan.WMALoader;Cured.;
83664560.exe;C:\Documents and Settings\LocalService\Local Settings\Temp;Win32.Virut.56;Cured.;
debug.exe;C:\Documents and Settings\LocalService\Local Settings\Temp;Win32.Virut.56;Cured.;
A0003699.exe;C:\System Volume Information\_restore{DACB8154-5323-4F26-8705-C66F8781F222}\RP15;Trojan.DownLoad.29459;Deleted.;
A0003716.exe;C:\System Volume Information\_restore{DACB8154-5323-4F26-8705-C66F8781F222}\RP16;Trojan.DownLoad.29459;Deleted.;
A0003717.exe;C:\System Volume Information\_restore{DACB8154-5323-4F26-8705-C66F8781F222}\RP16;Trojan.Spambot.3531;Deleted.;
A0003741.exe;C:\System Volume Information\_restore{DACB8154-5323-4F26-8705-C66F8781F222}\RP16;Trojan.DownLoad.29459;Deleted.;
A0004878.exe;C:\System Volume Information\_restore{DACB8154-5323-4F26-8705-C66F8781F222}\RP21;Win32.Virut.56;Cured.;
hjgruiwmqoyepv.dll;C:\WINDOWS\system32;BackDoor.Tdss.265;Deleted.;
VRT5.tmp;C:\WINDOWS\Temp;Trojan.Inject.origin;Incurable.Moved.;
hjgruiwmqoyepv.dll;C:\WINDOWS\system32;BackDoor.Tdss.265;Deleted.;

#5 DaChew

DaChew

    Visiting Alien


  • Members
  • 10,317 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:millenium falcon and rockytop
  • Local time:01:58 PM

Posted 16 July 2009 - 04:56 AM

I would reccomend a clean install

You have a newer variant of the TDSS rootkit and those signs of Virut

I'm afraid I have very bad news.

Your system is infected with a nasty variant of Virut, a polymorphic file infector with IRCBot functionality which infects .exe, .scr files, downloads more malicious files to your system, and opens a back door that compromises your computer. According to this Norman White Paper Assessment of W32/Virut, some variants can infect the HOSTS file and block access to security related web sites. Other variants of virut can even penetrate and infect .exe files within compressed files (.zip, .cab, rar). Virux is an even more complex file infector which can embed an iframe into the body of web-related files and infect script files (.php, .asp, and .html). When Virut creates infected files, it also creates non-functional files that are corrupted beyond repair and in some instances can disable Windows File Protection. In many cases the infected files cannot be disinfected properly by your anti-virus. When disinfection is attempted, the files become corrupted and the system may become irreparable. The longer virut remains on a computer, the more critical system files will become infected and corrupt so the degree of infection can vary.

The virus disables Windows File Protection by injecting code into the "winlogon.exe" process that patches system code in memory.

CA Virus detail of W32/Virut

The virus has a number of bugs in its code, and as a result it may misinfect a proportion of executable files....some W32/Virut.h infections are corrupted beyond repair.

McAfee Risk Assessment and Overview of W32/Virut

There are bugs in the viral code. When the virus produces infected files, it also creates non-functional files that also contain the virus...Due to the damaged caused to files by virut it's possible to find repaired but corrupted files. They became corrupted by the incorrect writing of the viral code during the process of infection. undetected, corrupted files (possibly still containing part of the viral code) can also be found. this is caused by incorrectly written and non-function viral code present in these files.

AVG Overview of W32/VirutThis kind of infection is contracted and spread by visiting remote, crack and keygen sites. These type of sites are infested with a smörgåsbord of malware and an increasing source of system infection. However, the CA Security Advisor Research Blog says they have found MySpace user pages carrying the malicious Virut URL. Either way you can end up with a computer system so badly damaged that recovery is not possible and it cannot be repaired. When that happens there is nothing you can do besides reformatting and reinstalling the OS.

...warez and crack web pages are being used by cybercriminals as download sites for malware related to VIRUT and VIRUX. Searches for serial numbers, cracks, and even antivirus products like Trend Micro yield malcodes that come in the form of executables or self-extracting files...quick links in these sites also lead to malicious files. Ads and banners are also infection vectors...

Keygen and Crack Sites Distribute VIRUX and FakeAV

If your computer was used for online banking, has credit card information or other sensitive data on it, you should disconnect from the Internet until your system is cleaned. 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. You should change each password using a clean computer and not the infected one. If not, an attacker may get the new passwords and transaction information. If using a router, you need to reset it with a strong logon/password so the malware cannot gain control before connect again. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read:There is no guarantee this infection can be completely removed. In some instances it 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. Reinstalling Windows without first wiping the entire hard drive with a repartition and/or format will not remove the infection. The reinstall will only overwrite the Windows files. Any malware on the system will still be there afterwards. Please read:
Chewy

No. Try not. Do... or do not. There is no try.

#6 I am the Walrus

I am the Walrus
  • Topic Starter

  • Members
  • 103 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:California
  • Local time:09:58 AM

Posted 16 July 2009 - 01:19 PM

Well...Let's not beat around the bush. What are you really saying? Not really. I am very thankful for your time and expertise in this area and will continue recommending your site and encourage the donations also. Thanks again Chewy.
Respectfully, The Walrus




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users