Sophos

W32/Bagle-W

Aliases
  • W32/Bagle.z@MM
  • Win32/Bagle.X
Category
Type
What to do
Prevalence low high

Summary

 
Protection available since 26 April 2004 16:18:18 (GMT)
Last updated 27 April 2004 04:18:32 (GMT)
Detected by All Sophos products
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Action

Please follow the instructions for removing worms.

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
drvsys.exe = drvsys.exe

and delete it if it exists.

Close the registry editor.

More Information

W32/Bagle-W is a member of the W32/Bagle family of worms.

When first run W32/Bagle-W will display a fake error message containing the text "Can't find a viewer associated with the file".

W32/Bagle-W copies itself to the Windows system folder with the filename drvsys.exe and then runs the worm from that location.

The following registry entry is created so that the worm is run when a user logs on to Windows:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
drvsys.exe = drvsys.exe

W32/Bagle-W recursively scans all fixed drives for WAB, TXT, MSG, HTM, SHTM, STM, XML, DBX, MBX, MDX, EML, NCH, MMF, ODS, CFG, ASP, PHP, WSH, ADB, TBB, SHT, XLS, OFT, UIN, CGI, MHT, DHTM and JSP files and then extracts email addresses from these files to be used for the mass mailing component of the worm.

The email sent by the worm will have the following characteristics:

Subject line may contain the following text:
Hello!
Hey!
Let's socialize, my friend!
Let's talk, my friend!
I'm bored with this life
Notify from a known person ;-)
I like you
I just need a friend
I'm a sad girl...
Re: Msg reply
Re: Hello
Re: Yahoo!
Re: Thank you!
Re: Thanks :)
RE: Text message
Re: Document
Incoming message
Re: Incoming Message
Re: Incoming Fax
Hidden message
Fax Message Received
Protected message
RE: Protected message
Forum notify
Request response
Site changes
Encrypted Document

Message text may contain any of the following messages:
I Like You!
Don't you remember me?
Kewl :-)
I need a friend...
I just want to talk with someone...
I like reading the books and socializing, let me talk with you...
It's time to find a friend!
Ready to accept a new friend? :-)
Like me, odore me!
I study at school, I like to spend time cheerfully even if not all so well,
I hompe and trust, that all bad when nibud will pass and necessarily nastanet
there would be a desire.

I like to feel protected, to understand, that near to me the man, which both in sex, and in life knows what to do. It is possible to fall in love with such the man for ever.

Cometime I write a poem, play the gitar. I love a traveling, I like a romantice and I want to meet, comeday, my big love

I am kind, fair, careful, gentle also want to create family. I love animal (cats, dogs), the literature, theatre, cinema, music, walks in park.

I have recently got demobilize from army and also I am going' to act in a higher educational institution

Searching for the right person,for real man, who will really cares and love me.

I am a honest, kind,loving,with good sense of humor...etc.,looking for true love... or maybe for pen friend.

I am looking for a serious relationship. I am NOT interested in flirt and short-term love adventure.

I love, as the good company, and I dream about romantic appointment at candles with loved. I still believe in love.

I'm a young lady of 20 years old i'd like to find my second part!!!

I am simple girl who are looking for serious relation with responsible and confident man. I am ready to give all my love' and carering for a right person who is going to love and respect me

I am a beautiful, sexual girl with very big ambitions and dreams. I can make happy anyone man...

I am a student. I'm studying international relationships. I would like to find an interesting and active man for serious relations. Sitting at home it is not for me. I like to go out to the theater, cinema, and nightclubs.

I'm so bored, let me talk with you...
You are my prince :-)
You are cool :-)
Read the attach.
Your file is attached.
More info is in attach
See attach.
Please, have a look at the attached file.
See the attached file for details.
Message is in attach
Here is the file.
For more information see the attached file.
Attached file will tell you everything.
For details see the attach.
Attached file tells everything.
Further details are in attach.

There may be two attached files one is a jpeg file that contains a picture of a woman and the other is a copy of the worm.

W32/Bagle-W example
The Bagle-W worm can choose one of three photographs of a woman to include in the email. Sophos has obscured the identity of the person in the photograph.

The worm will create the following copies of itself in folders on the infected system that contain the string "shar" in their name:
Microsoft Office 2003 Crack, Working!.exe
Microsoft Windows XP, WinXP Crack, working Keygen.exe
Microsoft Office XP working Crack, Keygen.exe
Porno, sex, oral, anal cool, awesome!!.exe
Porno Screensaver.scr
Serials.txt.exe
KAV 5.0
Kaspersky Antivirus 5.0
Porno pics arhive, xxx.exe
Windows Sourcecode update.doc.exe
Ahead Nero 7.exe
Windown Longhorn Beta Leak.exe
Opera 8 New!.exe
XXX hardcore images.exe
WinAmp 6 New!.exe
WinAmp 5 Pro Keygen Crack Update.exe
Adobe Photoshop 9 full.exe
Matrix 3 Revolution English Subtitles.exe
ACDSee 9.exe

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