Virus:BDS/Hupigon.chy
Date discovered:12/09/2006
Type:Backdoor Server
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:833.536 Bytes
MD5 checksum:4052dc2493d0b00af39524765d4c6119
VDF version:6.35.01.215
IVDF version:6.35.01.219 - Wednesday, September 13, 2006

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Mcafee: BackDoor-AWQ
   •  Kaspersky: Backdoor.Win32.Hupigon.chy
   •  TrendMicro: BKDR_HUPIGON.BJX
   •  F-Secure: Backdoor.Win32.Hupigon.chy
   •  Eset: Win32/Hupigon.CHY


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


Side effects:
   • Drops files
   • Registry modification
   • Steals information
   • Third party control

 Files It copies itself to the following location:
   • %WINDIR%\server.bat



It deletes the initially executed copy of itself.



The following files are created:

– %SYSDIR%\SVKP.sys
– %WINDIR%\uninstal.bat Furthermore it gets executed after it was fully created. This batch file is used to delete a file.

 Registry The following registry keys are added in order to load the services after reboot:

– [HKLM\SYSTEM\CurrentControlSet\Services\SVKP]
   • "Type"=dword:00000001
   • "Start"=dword:00000002
   • "ErrorControl"=dword:00000001
   • "ImagePath"="%SYSDIR%\SVKP.sys"
   • "DisplayName"="SVKP"

– [HKLM\SYSTEM\CurrentControlSet\Services\SVKP\Security]
   • "Security"=%hex values%

– [HKLM\SYSTEM\CurrentControlSet\Services\SVKP\Enum]
   • "0"="Root\\LEGACY_SVKP\\0000"
   • "Count"=dword:00000001
   • "NextInstance"=dword:00000001

– [HKLM\SYSTEM\CurrentControlSet\Services\BNS Service]
   • "Type"=dword:00000110
   • "Start"=dword:00000002
   • "ErrorControl"=dword:00000000
   • "ImagePath"="%WINDIR%\server.bat"
   • "DisplayName"="DNS Service"
   • "ObjectName"="LocalSystem"
   • "Description"="Ö§³Ö´Ë¼ÆËã»úµÄ½âÎöºÍ»º³åÓòÃûϵͳ(DNS)·þÎñ¡£Èç¹û´Ë·þÎñÍ£Ö¹£¬½âÎöºÍ»º³åÓòÃûϵͳ(DNS)·þÎñ¹¦Äܽ«²»¿ÉÓá£"

– [HKLM\SYSTEM\CurrentControlSet\Services\BNS Service\Security]
   • "Security"=%hex values%

– [HKLM\SYSTEM\CurrentControlSet\Services\BNS Service\Enum]
   • "0"="Root\\LEGACY_BNS_SERVICE\\0000"
   • "Count"=dword:00000001
   • "NextInstance"=dword:00000001

 Backdoor The following ports are opened:

– iexplore.exe on TCP port 8080 in order to provide a proxy server.
– iexplore.exe on TCP port 1080


Contact server:
The following:
   • syrus.3322.**********:8000

As a result it may send information and remote control could be provided.

Sends information about:
    • Computer name
    • Information about the Windows operating system

 Injection – It injects itself into a process.

    Process name:
   • iexplore.exe


 File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with the following runtime packer:
   • SVKP

Description inserted by Adriana Popa on Thursday, October 26, 2006
Description updated by Adriana Popa on Friday, October 27, 2006

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