W32/Bagle-N is an email worm which sends itself via its own SMTP engine to addresses harvested from your hard disk. The worm searches for files with the extensions WAB, TXT, HTM, XML, DBX, MDX, EML, NCH, MMF, ODS, CFG,
ASP, PHP, PL, ADB, TBB and SHT.
When run the worm copies itself to the Windows system folder using the name winupd.exe.
Emails have the following characteristics:
Subject lines:
E-mail account security warning.
Notify about using the e-mail account.
Warning about your e-mail account.
Important notify about your e-mail account.
Email account utilization warning.
E-mail technical support message.
E-mail technical support warning.
Email report
Important notify
Account notify
E-mail warning
Notify from e-mail technical support.
Notify about your e-mail account utilization.
E-mail account disabling warning.
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
Re: Hi
Encrypted document
Attached filenames:
Attach
Information
Details
Encrypted
first_part
Readme
Document
TextDocument
details
text_document
pub_document
MoreInfo
Message
Attached files arrive either as programs (with a .PIF extension) or as password-protected archives (with a .ZIP or .RAR extension). The password is included in the email.
A typical email sent by W32/Bagle-N
W32/Bagle-N is an email worm which sends itself via its own SMTP engine to addresses harvested from your hard disk. The worm searches for files with the extensions WAB, TXT, HTM, XML, DBX, MDX, EML, NCH, MMF, ODS, CFG,
ASP, PHP, PL, ADB, TBB and SHT.
When run the worm copies itself to the Windows system folder using the name winupd.exe.
Note that W32/Bagle-N is also a parasitic virus which infects .EXE files already present on your hard disk. If you run an infected program, then the worm file will reappear, just as if you had opened an infected email attachment. Be sure to replace or to disinfect files infected in this way to prevent winupd.exe from reappearing. (See the Recovery section below.)
W32/Bagle-N adds the value:
winupd.exe = [SYSTEM]\winupd.exe
to the registry entry:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
This means that W32/Bagle-N runs every time you logon to your computer.
Emails have the following characteristics:
Subject lines:
E-mail account security warning.
Notify about using the e-mail account.
Warning about your e-mail account.
Important notify about your e-mail account.
Email account utilization warning.
E-mail technical support message.
E-mail technical support warning.
Email report
Important notify
Account notify
E-mail warning
Notify from e-mail technical support.
Notify about your e-mail account utilization.
E-mail account disabling warning.
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
Re: Hi
Encrypted document
Attached filenames:
Attach
Information
Details
Encrypted
first_part
Readme
Document
TextDocument
details
text_document
pub_document
MoreInfo
Message
Attached files arrive either as programs (with a .PIF extension) or as password-protected archives (with a .ZIP or .RAR extension). The password is included in the email.
A typical email sent by W32/Bagle-N
W32/Bagle-N opens up a backdoor and listens for connections. If it receives the appropriate command it attempts to download and execute a file. W32/Bagle-N also makes a web connection to a remote URL, thus reporting the location and open port of infected computers.
W32/Bagle-N attempts to terminate several anti-virus and security-related processes.
W32/Bagle-N searches the mapped drives for the folders containing the string "shar" in the folder name. The worm copies itself to these folders using the names:
ACDSee 9.exe
Adobe Photoshop 9 full.exe
Ahead Nero 7.exe
Matrix 3 Revolution English Subtitles.exe
Microsoft Office 2003 Crack, Working!.exe
Microsoft Office XP working Crack, Keygen.exe
Microsoft Windows XP, WinXP Crack, working Keygen.exe
Opera 8 New!.exe
Porno Screensaver.scr
Porno pics arhive, xxx.exe
Porno, sex, oral, anal cool, awesome!!.exe
Serials.txt.exe
WinAmp 5 Pro Keygen Crack Update.exe
WinAmp 6 New!.exe
Windown Longhorn Beta Leak.exe
Windows Sourcecode update.doc.exe
XXX hardcore images.exe
Curiously, the author of the worm has hidden an ASCII text representation of a butterfly inside the viral code, alongside the words:
The White Rabbit Presents
The first and the single
Anti-NetSky AntiVirus
Hidden inside the Bagle-N worm is a picture of a butterfly