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cajung

76 Posts

10470

July 13th, 2010 09:00

TrojanDropper:Win32/Oficla.G and Trojan:HTML/Phisbank.O

This have been going on for a few months. Everyday when my virus scan runs....I get the message that "oneCare found potentially unwanted software and requires action from you. We recommend you remove software that you do npt recognize. To remove software yourself, locate the file(s) below and then delete the unwanted software. The 2 viruses are TrojanDropper:Win32/Oficla.G and Trojan:HTML/Phisbank.O. When I open the link for the first one I get this:

TrojanDropper:Win32/Oficla.G (?)

Encyclopedia entry
Updated: May 20, 2010  |  Published: Mar 18, 2010

Aliases
Win-Trojan/Oficla.82432 ( AhnLab)
  • W32/Trojan3.BRD (Authentium (Command))
  • TR/FraudPack.anmu (Avira)
  • Trojan.FakeAv.KSP (BitDefender)
  • Win32/Oficla.CI (CA)
  • Trojan.Oficla.26 (Dr.Web)
  • Win32/Oficla.EF (ESET)
  • FakeAlert-MA.gen (McAfee)
  • Trj/Sinowal.WXJ (Panda)
  • Mal/FakeAV-BW (Sophos)
  • TROJ_BREDO.JER (Trend Micro)
  • Win32/Kryptic.EFP (other)

Alert Level (?)
Severe

Antimalware protection details
Microsoft recommends that you download the latest definitions to get protected.
Detection last updated:
Definition: 1.85.1925.0
Released: Jul 12, 2010 		Detection initially created:
Definition: 1.77.96.0
Released: Feb 26, 2010

 

Summary

TrojanDropper:Win32/Oficla.G is a detection for a trojan that installs and executes Trojan:Win32/Oficla.M. This Win32/Oflicla variant attempts to connect with a remote host and download a configuration data file that instructs the trojan to retrieve other malware from additional download locations.

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Symptoms

System changes
The following system changes may indicate the presence of this malware:
  • The presence of the following files:
    \rjuq.mpo
  • The presence of the following registry modifications:
    Sets value: " Shell"
    From data: " explorer.exe"
    To data: " explorer.exe rundll32.exe rjuq.mpo owbtiln"
    In subkey:  HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

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Technical Information (Analysis)

TrojanDropper:Win32/Oficla.G is a detection for a trojan that installs and executes Trojan:Win32/Oficla.M. This Win32/Oflicla variant attempts to connect with a remote host and download a configuration data file that instructs the trojan to retrieve other malware from additional download locations.
Installation
TrojanDropper:Win32/Oficla.G may be distributed as an attachment to a spammed e-mail message. In the wild, we have observed this trojan distributed in .ZIP archive files as names similar to the following:
  • Resume_document_819.zip
  • My_Resume_621.zip
  • DHL_Tracking_NR.324-492383.zip
  • UPS_Invoice_Nr6991.zip
 
When run, TrojanDropper:Win32/Oficla.G drops a trojan component as the following:
 
\rjuq.mpo - Trojan:Win32/Oficla.M
 
The registry is modified to execute the dropped component at Windows start.
 
Sets value: " Shell"
From data: " explorer.exe"
To data: " explorer.exe rundll32.exe rjuq.mpo owbtiln"
In subkey:  HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Payload
Downloads arbitrary files
The installed trojan Win32/Oficla.M may inject code into the running process " SVCHOST.exe" that attempts to download a script from the domain " myxmad.com".
 
At the time of this writing, the script was unavailable.
 
Analysis by Dan Kurc

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Prevention

Take the following steps to help prevent infection on your computer:
  • Enable a firewall on your computer.
  • Get the latest computer updates for all your installed software.
  • Use up-to-date antivirus software.
  • Use caution when opening attachments and accepting file transfers.
  • Use caution when clicking on links to Web pages.
  • Avoid downloading pirated software.
  • Protect yourself against social engineering attacks.
  • Use strong passwords.
Enable a firewall on your computer
Use a third-party firewall product or turn on the Microsoft Windows Internet Connection Firewall.
Get the latest computer updates
Updates help protect your computer from viruses, worms, and other threats as they are discovered. It is important to install updates for all the software that is installed in your computer. These are usually available from vendor Web sites.
 
You can use the Automatic Updates feature in Windows to automatically download future Microsoft security updates while your computer is on and connected to the Internet.
Use up-to-date antivirus software
Most antivirus software can detect and prevent infection by known malicious software. To help protect you from infection, you should always run antivirus software, such as Microsoft Security Essentials, that is updated with the latest signature files. For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.
Use caution when opening attachments and accepting file transfers
Exercise caution with e-mail and attachments received from unknown sources, or received unexpectedly from known sources.  Use extreme caution when accepting file transfers from known or unknown sources.
Use caution when clicking on links to Web pages
Exercise caution with links to Web pages that you receive from unknown sources, especially if the links are to a Web page that you are not familiar with, unsure of the destination of, or suspicious of. Malicious software may be installed in your computer simply by visiting a Web page with harmful content.
Avoid downloading pirated software
Threats may also be bundled with software and files that are available for download on various torrent sites. Downloading "cracked" or "pirated" software from these sites carries not only the risk of being infected with malware, but is also illegal. For more information, see ' The risks of obtaining and using pirated software'.
Protect yourself from social engineering attacks
While attackers may attempt to exploit vulnerabilities in hardware or software in order to compromise a computer, they also attempt to exploit vulnerabilities in human behavior in order to do the same. When an attacker attempts to take advantage of human behavior in order to persuade the affected user to perform an action of the attacker's choice, it is known as 'social engineering'. Essentially, social engineering is an attack against the human interface of the targeted computer. For more information, see ' What is social engineering?'.
Use strong passwords
Attackers may try to gain access to your Windows account by guessing your password. It is therefore important that you use a strong password – one that cannot be easily guessed by an attacker. A strong password is one that has at least 8 characters, and combines letters, numbers, and symbols. For more information, see http://www.microsoft.com/protect/yourself/password/create.mspx.

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Recovery

Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as Microsoft Security Essentials, or the Windows Live OneCare safety scanner. For more information about using antivirus software, see http://www.microsoft.com/security/antivirus/av.aspx.
 
 
When I open the link for the second one I get this:
 
Trojan:HTML/Phishbank.O (?)
Encyclopedia entry
Published: May 13, 2010

Aliases
Not available

Alert Level (?)
Severe

Antimalware protection details
Microsoft recommends that you download the latest definitions to get protected.
Detection last updated:
Definition: 1.81.1748.0
Released: May 14, 2010 		Detection initially created:
Definition: 1.81.1685.0
Released: May 14, 2010


 

Summary

This threat is detected by the Microsoft antivirus engine. Technical details are not currently available for this threat.
 
 
 
 
I've looked at this many times but can not figure out how to remove these. Does anyone have any ideas? Your help would be greatly appreciated. Thanks

cajung

76 Posts

August 18th, 2010 08:00

Hi Kevin....OK...I'll try it in safe mode. You said that there is no internet connection in safe mode....so I don't have to quit my wireless connection before I start....correct? Also...if there is not internet connection....then obviously I need to download GMER before going into safe-mode. But....once in safe-mode...that is when I unzip the GMER? Correct? I just want to double check everything before I start. But please believe me....I followed your every direction to the "T" when I ran it twice yesterday. Also...do I need quotes (") when I name the file ark.txt? Thanks, Craig

kevinf80_1d0ac6

1.1K Posts

August 18th, 2010 08:00

Hi Craig,

I know this is very frustrating for you, it is for me. Rootkitunhooker indicated possible rootkit activity but did not identify anything. That is why I asked you to run GMER, GMER is the best tool available for finding rootkits.
BitDender is an online scanner and will not have any effect on GMER. You can get rid of it if you wish. Lets try running GMER with your PC in safe mode.
Re-boot your PC as it starts up gently TAP the F8 key continuously until you get to the Windows advanced options. You will see some new options Safemode, Safemode with networking and Safemode with command prompt. Select Safemode and just follow the prompts.
When finished you will see your Desktop, the icons will be larger, this is expected. You will have no internet connection, make sure your security is off, it may not have started in safemode.

Then double click on GMER as you`ve done previously and let it scan as instructed. Save the log as before. Re-boot into normal mode and post the log results for me...
If this still doesn`t identify the problem we`ll try something else. OK...

Kevin.

kevinf80_1d0ac6

1.1K Posts

August 18th, 2010 09:00

Hi Craig,

I believe you when say you are doing exactly what I  have instructed:emotion-21: No quotes needed for the file, also just use the last GMER you unzipped to your Desktop, that will be OK

Kevin..

kevinf80_1d0ac6

1.1K Posts

August 18th, 2010 14:00

I do not understand why GMER reacts the way it does for you. I work at several sites and have cleaned infections from many systems. I have never had any problems like we are experiencing with your system. It is pointless asking another analyst to help as we all use the same tools.
I have had a colleague look at the thread from the first post right to the end, he had no suggestions. When we get to this stage the only option left is to format your hard drive and reinstall windows. You will find the instructions Here Its unfortunate that I cannot help any further, but be assured that a format and reinstall will get rid you of the problem.

Kevin

cajung

76 Posts

August 18th, 2010 15:00

Hi Kevin...ok...I can try that. But, which one do I use? System Restore, PC Restore, or Manual Installation? And....if I do this, will anything that I have added to my PC disappear? If I will lose any of my info that I have loaded....please tell me now because I will not do it. My computer really isn't acting badly enough to go through all of that mess. Remember, I tried doing a system restore to an earlier date and for some reason my system won't let me do that. You never seemed to have a definative answer to why...other than saying that it may be because of the virus. I'll be waiting for an answer. Thanks, Craig

cajung

76 Posts

August 18th, 2010 16:00

Kevin, I also want to thank you for taking the time to try to solve this problem for me. Craig

cajung

76 Posts

August 18th, 2010 16:00

Hi Kevin....is there anything that I need to do to remove the tools completely from my PC. Thanks, Craig

kevinf80_1d0ac6

1.1K Posts

August 19th, 2010 02:00

Hi Craig,

You have three options from the DELL link I gave you. I`d try System Restore first. Dont forget you can only restore to a point in time when a restore point was created. Restore point dates are in bold text.  Also as the restore cache has a limited size, old restore points are removed as new are created if space is unavailable.

I`d say the second option is your best bet, unfortunately this returns your PC to the way it was when you bought it. Everything you added will be lost.

The third option backs up data etc before you do a manual re-install from The supplied CD`s, this way has a down side as the recovery partition is lost so that will not be an option in the future. This way is also quite complex.

You have to decide which option you`d like to take, I`d recommend option 2 as it is the easiest way and will guarantee a clean install at the end. The downside is the loss of data. You could back up important stuff to an external drive before you begin. eg Pictures, videos, documents etc etc. Any aplications would have to be re-installed.

Running OTC will remove the tools we have used, anything left on the Desktop can be safely removed by deleting...



  • Download
OTC by OldTimer and save it to your Desktop.
Alternative mirror
  • Double click
icon to start the program.
If you are using Vista, please right-click and choose run as administrator
  • Then Click the big
button.
  • You will get a prompt saying "
Begining Cleanup Process". Please select Yes.
  • Restart your computer when prompted.It will also remove the OTC application.

Kevin.

 







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