Virus:TR/NSAnti.B.116
Date discovered:19/10/2006
Type:Trojan
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:25.680 Bytes
MD5 checksum:9743aa9906016be4231dca9b6f9cc337
VDF version:6.36.00.60
IVDF version:6.36.00.73 - Monday, October 2, 2006

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Mcafee: Generic Dropper.p
   •  Kaspersky: Trojan-PSW.Win32.WOW.ee
   •  TrendMicro: TROJ_DLOADER.ECU
   •  Eset: Win32/PSW.WOW.EE
   •  Bitdefender: Trojan.NSAnti.B


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


Side effects:
   • Drops a malicious file
   • Steals information

 Files The following file is created:

– C:\TKBWDL\BW_DLL.DLL Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.WOW.EE.5

 Injection –  It injects the following file into a process: C:\TKBWDL\BW_DLL.DLL

    All of the following processes:
   • %processes that have visible windows%
   • Explorer.exe


 Miscellaneous Mutex:
It creates the following Mutex:
   • BW_EXE_MUTEX

 File details Programming language:
 The malware program was written in Visual Basic.


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

Description inserted by Monica Ghitun on Thursday, October 19, 2006
Description updated by Andrei Ivanes on Monday, November 6, 2006

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