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Exploit Javascript Obfuscation(Type 894) Virus


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5 replies to this topic

#1 Kat

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Posted 06 January 2010 - 04:55 PM

Upon attempting a log-in to a family member's personal blogsite, AVG popped up with an "Accessed File is Infected" warning. The "Threat Detected" file name is focus-de.pichunter.com.moneycontrol-com.ampsguide.ru:8080/index.php?js. The threat name is "Exploit Javascript Obfuscation (type 894).

I then ran a full AVG scan; no threats were detected. My question is....can I trust the AVG scan results or should I dig a little further to find out if any bad boys are still lurking out there? If so, please direct me in that search.

BTW, I immediately notified the blogsite's owner and have been informed that the infection has been removed; I won't be using the site any longer, as the owner is no longer blogging there.

Thanks, wonderful Bleepers.

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#2 boopme

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Posted 07 January 2010 - 12:03 AM

Hello, well we should check a few things, Exploits are commonly the result of a malicious javascript exploiting a hole in some software. So update your Windows fully. If XP ,click start. You will see a Windows Update selection in the pop up menu.

Update Adobe Reader.
Adobe Reader 9.2
UN check this box Free Google Toolbar (optional)

Check JAVA versioin.
Go into Control Panel>Add Remove Programs. Be sure the 'Show Updates' box is checked. Go down the list and tell me what Java applications are installed and their version. (Highlight the program to see this).

Next run ATF:
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Please download ATF Cleaner by Atribune & save it to your desktop.
  • Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose: Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.

Next run MBAM (MalwareBytes):

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

Please download Malwarebytes Anti-Malware and save it to your desktop.

alternate download link

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#3 Kat

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Posted 07 January 2010 - 02:02 AM

Greetings, boopme,

I've updated Adobe Reader 9.2 and Windows XP.

I'm confounded re reporting the Java version to you, as I don't see any Java apps in Add/Remove Programs. Using the command prompt, I also searched using 'java-version' and 'java -version' and received this response: "Java (or 'java version') is not recognized as an internal or external command, operable program or batch file".

I then ran the ATF cleaner successfully.

Below are the MBAM scan results. I chose not to delete the two MSFT Security Center items, as I run AVG anti-virus only and prefer to time my own updates. Just what are those two bad guys found and deleted via MBAM?

Malwarebytes' Anti-Malware 1.41

Database version: 2775

Windows 5.1.2600 Service Pack 3

1/6/2010 10:45:54 PM

mbam-log-2010-01-06 (22-45-54).txt

Scan type: Quick Scan

Objects scanned: 93982

Time elapsed: 10 minute(s), 9 second(s)

Memory Processes Infected: 0

Memory Modules Infected: 0

Registry Keys Infected: 1

Registry Values Infected: 0

Registry Data Items Infected: 2

Folders Infected: 0

Files Infected: 1

Memory Processes Infected:

(No malicious items detected)

Memory Modules Infected:

(No malicious items detected)

Registry Keys Infected:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\setup.exe (Rogue.Installer) -> Quarantined and deleted successfully.

Registry Values Infected:

(No malicious items detected)

Registry Data Items Infected:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Not selected for removal.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Not selected for removal.

Folders Infected:

(No malicious items detected)

Files Infected:

C:\Program Files\setup.exe (Rogue.Installer) -> Quarantined and deleted successfully.

Thanks for your help.
~Kat

#4 boopme

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Posted 09 January 2010 - 08:02 PM

Hello just as it is named,setup.exe (Rogue.Installer)
It installs a setup file for Rogue antispyware apps that can run malware on your PC.

Your copy of MBAM is dated...
Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.

How is it running now?

RDIT: you're welcome Kat

Edited by boopme, 09 January 2010 - 08:02 PM.

How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 Kat

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Posted 18 January 2010 - 05:55 PM

Oh oh, Boopme---a thousand pardons! I hadn't checked recently so was unaware of your instruction to run an MBAM scan via an updated app. Below are the results. Looks like I am running a clean machine, thanks to you (other than in serious need of more RAM - need to buy self a new PC soon).

Three remaining questions: Is it important that I couldn't find any Java apps on this ancient computer? You asked that I report the Java version to you. What's the relationship between the lack of apps and the Exploit Javascript Virus which caused me to begin this topic (if any)??

Question #2 is related to my attempt to update the MBAM app on this PC; I was unable to do so, consistently received an Error Code message which MBAM asked that I report to them. I went to my laptop, downloaded and updated the MBAM app there, then brought it to this PC via a thumb drive so I could run a scan with the latest and greatest. Are the Error Code incidents related to the lack of RAM on this PC?

Question #3: Is the Rogue installer related to the Exploit Javascript Virus which caused me to begin this topic .... or just something the scan happened to find?

Once again, to you and the rest of your fellow Bleeping Helpers, a grateful 'thank you'.
~Kat

Malwarebytes' Anti-Malware 1.44
Database version: 3510
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

1/18/2010 2:51:38 PM
mbam-log-2010-01-18 (14-51-38).txt

Scan type: Quick Scan
Objects scanned: 111040
Time elapsed: 13 minute(s), 25 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#6 boopme

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Posted 18 January 2010 - 11:22 PM

Hello the oiginal issue Exploit Javascript. This detection is mostly caused by injected javascript/iframe pointing to other infected website.
The infected website is probably trying to use security hole in some older version of Adobe Reader. So we updated thes on your machine.
So as to question 1. It was exploiting Adobe as you do not have JAVA. No you do not necessarily need Java unless you use apps that needed it.Then your PC would have asked you to install it.
Java and javascript are 2 different things. Java is Not JavaScript

Most like the Rogue installer was in the infected web pages javascript. It tried to install malware thru the exploit it found. This is becoming very popular.

Glad to have helped. :thumbsup:

Now you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been backed up, renamed and saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista and Windows 7 users can refer to these links: Create a New Restore Point in Vista or Windows 7 and Disk Cleanup in Vista.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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