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Monday, April 30, 2007

BrO_AcT (That You Need To Know)

BrO_AcT Facts That You Need To KnowLately, a lot of my friend's computer have been infected by BrO_AcT worm/virus. And it cause them a lot of trouble to get rid of this new virus. Moreover, the information on the Net is still very limited since it is a new virus. Recently, I've found the facts about this virus on the Net and want to share with you so that you will know if you've been a victim or not.1)What is BrO_AcT ?Symantec AV -> identify it as W32.sillyDC.DrWeb CureIT -> identify it as Win32.HLLW.BroactTrenMicro -> identify it as WORM_VB.BHEPanda AV -> identify it as W32/SexyGirl.A.wormAvira -> identify it as Worm/VB.DH.12)How it Spreads ?Normally it spread via removable storage devices(USB drive) . Infected thumb drive will show these files: "MySexy.exe", "User.exe" and "Sexy.Dat".3)Symptomps -Popup box appears after login into the Windows, with the title "BrO_AcT.exe". It contains a message but I don't remember what it is written.-Look at your title bar. An infected hardi...

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BrO_AcT Facts That You Need To Know

Lately, a lot of my friend's computer have been infected by BrO_AcT worm/virus. And it cause them a lot of trouble to get rid of this new virus. Moreover, the information on the Net is still very limited since it is a new virus. Recently, I've found the facts about this virus on the Net and want to share with you so that you will know if you've been a victim or not.

1)What is BrO_AcT ?

Symantec AV -> identify it as W32.sillyDC.
DrWeb CureIT -> identify it as Win32.HLLW.Broact
TrenMicro -> identify it as WORM_VB.BHE
Panda AV -> identify it as W32/SexyGirl.A.worm
Avira -> identify it as Worm/VB.DH.1

2)How it Spreads ?

Normally it spread via removable storage devices(USB drive) . Infected thumb drive will show these files: "MySexy.exe", "User.exe" and "Sexy.Dat".

3)Symptomps

-Popup box appears after login into the Windows, with the title "BrO_AcT.exe". It contains a message but I don't remember what it is written.
-Look at your title bar. An infected hardisk will show the folder name + [:Restricted by BrO_Act:]
- When you try to open C:\Windows\System32 folder, explorer close itself.
- Right click My Computer, select Properties, select Computer, click Change button, you find that your computer name has been changed to "ReAct_User"
-Your antivirus has been deactivated.
-You can't access Task Manager, Regedit, Msconfig, Folder option, and Command prompt.

4)How Do I Confirm that I'm Infected ?

Run Hijackthis. These are the entries added:
C:\WINDOWS\system32\BrO_AcT.exe
F2 - REG:system.ini: Shell=Explorer.exe "C:\WINDOWS\default__.pif"
O4 - HKLM\..\Run: [System] C:\WINDOWS\SYSTEM32\BrO_AcT.exe
O4 - HKCU\..\Run: [svchost] C:\WINDOWS\SYSTEM32\ReAct_User\svchost.exe


5)What Will This Virus Do or Create in Your Computer ?

It will create and add the following files :-

-C:\Windows\system32\BrO_AcT.exe-C:\WINDOWS\default__.pif
-C:\WINDOWS\SYSTEM32\ReAct_User\svchost.exe
-C:\WINDOWS\SYSTEM32\ReAct_User\winlogon.exe
-C:\ReActLog (Something with this name)
-NTDETCH.com (on all your drive, root folder)
-Autorun.inf (on all your drive, root folder)
-Hundreds of files in C:\System Volume -Information\_restore{7C0D0734-E9F5-4A30-ABD4-977206CFACB2}\RP411 (With name like -A0062080.com, A0062083.pif, A0062092.exe and etc)
-C:\WINDOWS\system32\MySexy.exe
-C:\WINDOWS\system32\regedit.com
-C:\WINDOWS\system32\msconfig.com

It also will copy itself to any portable USB drive connected to the infected system and creating:-
->Autorun.innf
->BrO_AcT.exe
->My_SeXy.exe

and the USB drive will autorun anytime you connect it to the system. "THIS IS THE WAY HOW THE VIRUS SPREAD".


6) How Do I Get Rid of BrO_Act.exe ?

Update your anti-virus with latest virus definition. As far as I know :-


Nod32 AV - not detect, system infected
BitDefender 10 - not detect, system infected
McAfee - not detect, system infected

Avira - detected as Worm/VB.DH.1
AVG 7.5 Pro - detected as W32/VB
Kapersky - detected as Win32.VB.DH


I hope this little info will help you to eliminate this annoying virus.

All The Best....

2 comments:

Kalpurush said...

There are tons of help full msg abt the worm on internet by generous guys thx all.All other methods work or not i dunno here is how i did it(After messing around inside registry and all).
1. Download RemoveIT pro XT(Thnx Guys)its free and strongest remover in my opinion.Install it.
2. Go to process manager and stop following process:
a. BrO_AcT.exe
b. NTDETCH
3. If u need to edit registry download :regalyz: from major geek.(BrO.AcT allows it to run regedit.)
4.Run remove it, hope it cleans all.
5.Mail me if u need help(zubair59@gmail.com).

Azniza Ambrose said...

Thx so much..this information really had helped me

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