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Beglur


Aliases:


Beglur
I-Worm.Beglur

Malware
Worm
W32

Summary

Beglur is a mass-mailer that spreads as an attachment to e-mails mentioning Saddam Hussein and Osama Bin Laden. The worm uses IFrame exploit to automatically start its attachments on recipients' computers.



Disinfection & Removal

Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details

The worm's file is a Windows PE executable 8774 bytes long packed with UPX file compressor. The unpacked file size is about 27 kilobytes.

When the worm's file is started, it copies itself to Windows System folder as BGLR32.EXE and modifies SHELL= variable in SYSTEM.INI file or System Registry (depending on Windows version) to be always run with Windows.

Then the worm starts to scan all files on a C: drive. If it finds files with the following extensions:

.TXT
 .MHT
 .HTM
 .HTML
 .EML
 .JSE
 .ASP


the worm will look for e-mail addresses inside those files.

The worm gets information about user's SMTP server address from the Registry. If this information is unavailable, the worm tries to use the following SMTP server:

smtp.hotpop.com


E-mail messages sent by the worm look like that:

From:

Baath <baath@iraq.com>


Subject:

For World of Peace!


Body:

Saddam Hussien has been captured but Osama Bin Laden still have a power
 and US will never captured this person until somebody captured Bush.
 God Bless You!!
 A.Q.T.E


Attachment:

BGLR32.EXE


The worm uses IFrame exploit that allows the infected attachment to start automatically on older and unpatched versions of certain e-mail clients.



Detection

Detection was published on December 18th, 2003 in the following FSAV updates:

Detection Type: PC
Database: 2003-12-18_03



Technical Details: Alexey Podrezov, December 19th, 2003



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