How to clear Brontok virus!!! Please Help Me!!!?

Question

The Brontok virus come every 3, 6, 9, 12 o'clock. This virus came from Internet. This virus can go to other computer with pendrive. The virus can make computer speed slow and Internet speed too.
It saved in my picture but if I delete it, it come again. And don't have any idea to clear this virus. This virus maybe froom indonesia. Maybe some pro Indonesian people can help me or a pro virus clear.

Answer 1

urgent u get a brontok virus from indonesia country
this is quite a lethal virus
remove it quick !!
i got this virus last month and can be clearly removed with regedit procedure
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W32.Rontokbro@mm
Discovered on: September 23, 2005
Last Updated on: October 03, 2005 03:48:13 PM







W32.Rontokbro@mm is a mass-mailing worm that causes system instability.



Type: Worm
Infection Length: 102,400 bytes



Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP







Virus Definitions (LiveUpdate™ Weekly)
September 28, 2005


Virus Definitions (Intelligent Updater)
September 23, 2005







Wild

Number of infections: 0 - 49
Number of sites: 0 - 2
Geographical distribution: Low
Threat containment: Easy
Removal: Moderate
Threat Metrics


Wild:
Low
Damage:
Medium
Distribution:
High



Damage

Payload Trigger: n/a
Payload:
Large scale e-mailing: Sends a mass-mailing of itself.
Deletes files: n/a
Modifies files: Overwrites the c:\autoexec.bat file.
Degrades performance: Mass-mailing may degrade performance.
Causes system instability: n/a
Releases confidential info: n/a
Compromises security settings: n/a
Distribution

Subject of email: The subject of the email is left blank.
Name of attachment: Kangen.exe
Size of attachment: n/a
Time stamp of attachment: n/a
Ports: n/a
Shared drives: n/a
Target of infection: n/a


When W32.Rontokbro@mm is executed, it performs the following actions:


Copies itself as the following files:


C:\Windows\PIF\CVT.exe
%UserProfile%\APPDATA\IDTempla...
%UserProfile%\APPDATA\services...
%UserProfile%\APPDATA\lsass.ex...
%UserProfile%\APPDATA\inetinfo...
%UserProfile%\APPDATA\csrss.ex...
%UserProfile%\APPDATA\winlogon...
%UserProfile%\Programs\Startup...
%UserProfile%\Templates\A.kotn...
%System%\3D Animation.scr

Note:
%System% is a variable that refers to the System folder. By default this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
%UserProfile% is a variable that refers to the current user's profile folder. By default, this is C:\Documents and Settings\[CURRENT USER] (Windows NT/2000/XP).


Creates the folder:

%UserProfile%\Local Settings\Application Data\Bron.tok-24


Overwrites C:\Autoexec.bat with the following text:

"pause"


Adds the value:

"Tok-Cirrhatus" = "%UserProfile%\APPDATA\IDTempl...

to the registry subkey:

HKEY_CURRENT_USER\SOFTWARE\Mic...

so that it runs every time Windows starts.

Adds the value:

"Bron-Spizaetus" = "C:\WINDOWS\PIF\CVT.exe"

to the registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Mi...

so that it runs every time Windows starts.


Modifies the value:

"DisableRegistryTools" = "1"
"DisableCMD" = "2"

in the registry subkey:

HKEY_CURRENT_USER\Software\Mic...
Policies\System


Modifies the value:

"NoFolderOptions" = "1"

in the registry subkey:

HKEY_CURRENT_USER\Software\Mic...
Policies\Explorer\


Adds a task to the Windows scheduler to execute the following file at 5:08 PM every day:

%UserProfile%\Templates\A.kotn...


Reboots the computer when it detects a window whose title contains one of the following strings:


..
.@
@.
.ASP
.EXE
.HTM
.JS
.PHP
ADMIN
ADOBE
AHNLAB
ALADDIN
ALERT
ALWIL
ANTIGEN
APACHE
APPLICATION
ARCHIEVE
ASDF
ASSOCIATE
AVAST
AVG
AVIRA
BILLING@
BLACK
BLAH
BLEEP
BUILDER
CANON
CENTER
CILLIN
CISCO
CMD.
CNET
COMMAND
COMMAND PROMPT
CONTOH
CONTROL
CRACK
DARK
DATA
DATABASE
DEMO
DETIK
DEVELOP
DOMAIN
DOWNLOAD
ESAFE
ESAVE
ESCAN
EXAMPLE
FEEDBACK
FIREWALL
FOO@
****
FUJITSU
GATEWAY
GOOGLE
GRISOFT
GROUP
HACK
HAURI
HIDDEN
HP.
IBM.
INFO@
INTEL.
KOMPUTER
LINUX
LOG OFF WINDOWS
LOTUS
MACRO
MALWARE
MASTER
MCAFEE
MICRO
MICROSOFT
MOZILLA
MYSQL
NETSCAPE
NETWORK
NEWS
NOD32
NOKIA
NORMAN
NORTON
NOVELL
NVIDIA
OPERA
OVERTURE
PANDA
PATCH
POSTGRE
PROGRAM
PROLAND
PROMPT
PROTECT
PROXY
RECIPIENT
REGISTRY
RELAY
RESPONSE
ROBOT
SCAN
SCRIPT HOST
SEARCH R
SECURE
SECURITY
SEKUR
SENIOR
SERVER
SERVICE
SHUT DOWN
SIEMENS
SMTP
SOFT
SOME
SOPHOS
SOURCE
SPAM
SPERSKY
SUN.
SUPPORT
SYBARI
SYMANTEC
SYSTEM CONFIGURATION
TEST
TREND
TRUST
UPDATE
UTILITY
VAKSIN
VIRUS
W3.
WINDOWS SECURITY.VBS
WWW
XEROX
XXX
YOUR
ZDNET
ZEND
ZOMBIE


May also launch a ping flood attack on the following sites:


israel.gov.il
playboy.com


Gathers email addresses from files with the following extensions on all local drives from C to Y:


.asp
.cfm
.csv
.doc
.eml
.html
.php
.txt
.wab


Avoids sending itself to email addresses that contain any of the following strings in the domain name:


PLASA
TELKOM
INDO
.CO.ID
.GO.ID
.MIL.ID
.SCH.ID
.NET.ID
.OR.ID
.AC.ID
.WEB.ID
.WAR.NET.ID
ASTAGA
GAUL
BOLEH
EMAILKU
SATU


May append the following prefixes to domain names in an attempt to find Simple Mail Transfer Protocol (SMTP) servers:


smtp.
mail.
ns1.


Uses its own SMTP engine to send itself to the email addresses that it finds. The email has the following characteristics:

From: [SPOOFED]

Subject: [BLANK]

Message:
BRONTOK.A [ By: H[REMOVED]Community ]
-- Hentikan kebobrokan di negeri ini --
1. Adili Koruptor, Penyelundup, Tukang Suap, Penjudi, & Bandar NARKOBA
( Send to "NUSAKAMBANGAN")
2. Stop Free Sex, Absorsi, & Prostitusi
3. Stop (pencemaran laut & sungai), pembakaran hutan & perburuan liar.
4. SAY NO TO DRUGS !!!
-- KIAMAT SUDAH DEKAT --
Terinspirasi oleh: Elang Brontok (Spizaetus Cirrhatus) yang hampir punah[ By: H[REMOVED]unity --

Attachment:

Kangen.exe






Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates.
If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services (for example, all Windows-based computers should have the current Service Pack installed.). Additionally, please apply any security updates that are mentioned in this writeup, in trusted Security Bulletins, or on vendor Web sites.
Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.


The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.


Disable System Restore (Windows Me/XP).
Update the virus definitions.
Run a full system scan and delete all the files detected.
Use the Security Response "Tool to reset shell\open\command registry subkeys."
Delete any values added to the registry.
Delete the scheduled task.

For specific details on each of these steps, read the following instructions.

1. To disable System Restore (Windows Me/XP)
If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer.

Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations.

Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat.

For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles:
How to disable or enable Windows Me System Restore
How to turn off or turn on Windows XP System Restore

Note: When you are completely finished with the removal procedure and are satisfied that the threat has been removed, reenable System Restore by following the instructions in the aforementioned documents.

For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article: Antivirus Tools Cannot Clean Infected Files in the _Restore Folder (Article ID: Q263455).

2. To update the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to Virus Definitions (LiveUpdate).
Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted daily. You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to Virus Definitions (Intelligent Updater).

The latest Intelligent Updater virus definitions can be obtained here: Intelligent Updater virus definitions. For detailed instructions read the document: How to update virus definition files using the Intelligent Updater.


3. To scan for and delete the infected files
Start your Symantec antivirus program and make sure that it is configured to scan all the files.
For Norton AntiVirus consumer products: Read the document: How to configure Norton AntiVirus to scan all files.
For Symantec AntiVirus Enterprise products: Read the document: How to verify that a Symantec Corporate antivirus product is set to scan all files.
Run a full system scan.
If any files are detected, click Delete.

Important: If you are unable to start your Symantec antivirus product or the product reports that it cannot delete a detected file, you may need to stop the risk from running in order to remove it. To do this, run the scan in Safe mode. For instructions, read the document, How to start the computer in Safe Mode. Once you have restarted in Safe mode, run the scan again.

After the files are deleted, restart the computer in Normal mode and proceed with the next section.

Warning messages may be displayed when the computer is restarted, since the threat may not be fully removed at this point. You can ignore these messages and click OK. These messages will not appear when the computer is restarted after the removal instructions have been fully completed. The messages displayed may be similar to the following:

Title: [FILE PATH]
Message body: Windows cannot find [FILE NAME]. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.


4. Using the Security Response "Tool to reset shell\open\command registry subkeys."
This risk makes changes to the Windows registry that may prevent you from running executable files. Security Response has developed a tool to reset these values to the default settings. This tool is the easiest way to fix this. Once you have run the tool, return to this page and continue with the removal.


5. To delete the value from the registry
Important: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified subkeys only. For instructions refer to the document: How to make a backup of the Windows registry.

Click Start > Run.
Type regedit
Click OK.

Note: If the registry editor fails to open the threat may have modified the registry to prevent access to the registry editor. Security Response has developed a tool to resolve this problem. Download and run this tool, and then continue with the removal.


Navigate to the subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Mi...


In the right pane, delete the value:

"Bron-Spizaetus" = "C:\WINDOWS\PIF\CVT.exe"


Exit the Registry Editor.


6. To delete the scheduled tasks added by the worm
Click Start, and then click Control Panel. (In Windows XP, switch to Classic View.)
In the Control Panel window, double click Scheduled Tasks.
Right click the task icon and select Properties from pop-up menu.
The properties of the task is displayed.
Delete the task if the contents of the Run text box in the task pane, matches the following:

%UserProfile%\Templates\A.kotn...



or u can contact me at:[e-mail] for better result
hope this can help

Answer 2

2

Answer 3

I have two answers.
#1 This virus company has the answer. Just a small program you need to download and run.
http://www.sophos.com/support/disinfection/brontok.html

#2 Another more general fix includes formating your hard drive and installing your favorite OS though you will lose all your information this way so you should only use if other options don't work. Try #1 first.

Answer 4

Well, from what I have read about Brontok, most decent anti-virus programs will remove it. I am really into free virus programs. The best I have used is Avast Anti-Virus. I also use AVG. Both Programs are free. You may know this but you did not mention any AV programs you have tryed for removal.

AVG Free: http://free.grisoft.com/freeweb.php/doc/2/

Avast Home Ed (free) Registration required:
http://www.avast.com/eng/download-avast-home.html

Also there are online anti-virus scanners like Housecall or Norton. Google housecall or symantec online virus scanner. Personally I use housecall, I am kind of anti-norton. But they are both also free. Good luck!!
---------------------------------------------------------------------------------

Damn yoyox_34, please do not enter the computer support feild
you can not offer this type of info to a general user! You will only make their problem worse!!!

Answer 5

Never gave this much thought

Answer 6

http://wirusy.antivirenkit.pl/en/szczepionki/Brontok.html

Answer 7

my advise is format ur harddrive

Answer 8

Well, it depends..