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Date discovered:24/11/2008
In the wild:Yes
Reported Infections:Medium
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:26.112 Bytes
MD5 checksum:b2f27d1b598d46998eda3a12ddfe140e
IVDF version:

 General Method of propagation:
   • Email

   •  Symantec: Downloader
   •  Mcafee:
   •  Kaspersky: Worm.Win32.AutoRun.svl
   •  TrendMicro: WORM_AUTORUN.BWQ
   •  F-Secure: Worm.Win32.AutoRun.svl
   •  Sophos: Troj/Agent-IIJ
   •  Grisoft: Pakes.ANT
   •  VirusBuster: Trojan.Agent.FKIA
   •  Eset: Win32/AutoRun.FakeAlert.AD
   •  Bitdefender: Trojan.Agent.ALHD

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Downloads a malicious file
   • Registry modification

 Files It copies itself to the following location:
   • %PROGRAM FILES%\Microsoft Common\svchost.exe

It deletes the initially executed copy of itself.

It tries to download a file:

– The location is the following:
This file may contain further download locations and might serve as source for new threats.

 Registry The following registry key is added:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
   Image File Execution Options\explorer.exe]
   • Debugger = "%PROGRAM FILES%\Microsoft Common\svchost.exe"

 Email It doesn't have its own spreading routine but it was spammed out via email. The characteristics are described in the following:

The sender address is spoofed.

The following:
   • Abrechnung %several random numbers from 0 to 9%

The body of the email is the following:

   • Sehr geehrte Damen und Herren!
     Die Anzahlung Nr.%several random numbers from 0 to 9% ist erfolgt
     Es wurden 2455.00 EURO Ihrem Konto zu Last geschrieben.
     Die Auflistung der Kosten finden Sie im Anhang in der Datei: Abrechnung.
     Regel Inkasso GmbH & Co. KG
     Fredeburger Str. 21
     33699 Bielefeld
     Postfach 51 20 05
     33698 Bielefeld
     Tel.: 0521 93212-0
     Fa x: 0521 92412-15
     AG Bielefeld HRA 13169
     Steuer-Nummer: 349/5749/0377
     Regel Verwaltungs-GmbH
     AG Bielefeld HRA 34932

The filename of the attachment is:

The attachment is an archive containing a copy of the malware itself.

 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.

Description inserted by Thomas Wegele on Tuesday, November 25, 2008
Description updated by Thomas Wegele on Tuesday, November 25, 2008

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