Worm/Atak.M - Worm

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Summary

Full description

Statistics

Virus:	Worm/Atak.M
Date discovered:	04/08/2005
Type:	Worm
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Medium
Damage Potential:	Low
Static file:	Yes
File size:	11.885 Bytes
MD5 checksum:	95b9fa3fe126cf8c3144ce62901d47c3
VDF version:	6.29.0.21

General Method of propagation:
   • Email

Aliases:
   • Symantec: W32.Atak.G@mm
   • Mcafee: W32/Atak.j@MM
   • Kaspersky: Email-Worm.Win32.Atak.i
   • TrendMicro: WORM_ATAK.K
   • F-Secure: W32/Atak.L@mm
   • Sophos: W32/Atak-K
   • Grisoft: I-Worm/Atak.J
   • VirusBuster: I-Worm.Scroll

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP

Side effects:
   • Uses its own Email engine

Files It copies itself to the following location:
   • %SYSDIR%\sec5dec.exe

It copies itself within an archive to the following location:
   • %TEMPDIR%\tmp%random character string%.tmp

It deletes the following file:
   • %TEMPDIR%\tmp%random character string%.tmp

Registry The following registry key is added in order to run the process after reboot:

– [HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows]
• "run"="%SYSDIR%\sec5dec.exe"

Email It contains an integrated SMTP engine in order to send emails. A direct connection with the destination server will be established. The characteristics are described in the following:

From:
The sender address is spoofed.

To:
– Email addresses found in specific files on the system.
– Email addresses gathered from WAB (Windows Address Book)
–Email addresses gathered from Yahoo! Messenger
–Email addresses gathered from MSN Messenger

Subject:
One of the following:
   • HAPPY X-MAS TO U!
   • X-MAS GREETING!

Body:
– Contains HTML code.

   • Forgive me if I have make some mistake and hope much better next year!
     Happy X-Mas and New Year!
     -----------------------
     http://www.makelovewithspam.com

   • I would like to say Happy X-Mas if you celebrate it and Happy New Year! Be matured not childish!
     -----------------------
     http://www.makelovewithspam.com

Attachment:
The filename of the attachment is one of the following:
   • santa_gift.zip
   • present.zip
   • scroll.zip
   • attached.zip

The email may look like one of the following:

Mailing Search addresses:
It searches the following files for email addresses:
• log; html; msg; eml; mht; dbx; asp; php; jsp; htm; txt

File details Programming language:
The malware program was written in MS Visual C++.

Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

See a brief description here.

Description inserted by Sergiu Oprea on Thu, 11 Aug 2005 14:07 (GMT+1)
Description updated by Sergiu Oprea on Tue, 30 Aug 2005 12:33 (GMT+1)

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