Virus:TR/Click.Delf.FZ.1
Date discovered:14/09/2006
Type:Trojan
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:698.368 Bytes
MD5 checksum:437bbd6423473942fb097febadf18af8
VDF version:6.36.00.07
IVDF version:6.36.00.17 - Friday, September 15, 2006

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan-Clicker.Win32.Delf.fz
   •  TrendMicro: TROJ_DELF.CRL
   •  F-Secure: Trojan-Clicker.Win32.Delf.fz
   •  Grisoft: Clicker.CWH


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


Side effects:
   • Drops a file
   • Registry modification
   • Third party control

 Files It copies itself to the following location:
   • %PROGRAM FILES%\PViever\pviever.exe



It creates the following directory:
   • %PROGRAM FILES%\PViever



The following file is created:

– %PROGRAM FILES%\PViever\uin.txt

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

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "PViever"=""%PROGRAM FILES%\PViever\pviever.exe" hide"



The following registry keys are added:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
   User Agent\Post Platform]
   • @=""

– [HKCU\Software\Microsoft\Internet Explorer\International\CpMRU]
   • "Enable"=dword:00000001
   • "Size"=dword:0000000a
   • "InitHits"=dword:00000064
   • "Factor"=dword:00000014



The following registry keys are changed:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\URL\DefaultPrefix]
   Old value:
   • @="http://"
   New value:
   • @="http://htpp.ws?"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\URL\Prefixes]
   Old value:
   • "www"="http://"
   New value:
   • "www"="http://htpp.ws?"

 Backdoor Contact server:
All of the following:
   • neosap.ru/surf/**********
   • super-tds.info/surf/**********
   • htpp.ws/surf/**********
   • xep.ru/surf/**********

As a result remote control capability is provided. Besides, it periodically repeats the connection.

Remote control capabilities:
    • Visit a website

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

Description inserted by Adriana Popa on Wednesday, September 27, 2006
Description updated by Adriana Popa on Wednesday, September 27, 2006

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