Virus:TR/Delf.own
Date discovered:19/02/2008
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:753.664 Bytes
MD5 checksum:2ca0c132a7ae4c1209c31286acbd507c
IVDF version:7.00.02.156 - Tuesday, February 19, 2008

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan.Win32.Agent.ftz
   •  F-Secure: Trojan.Win32.Agent.ftz
   •  Sophos: Troj/Agent-GPY
   •  Grisoft: BackDoor.Delf.BHF
   •  Eset: Win32/Agent.ECD
   •  Bitdefender: Worm.P2P.Agent.N


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


Side effects:
   • Registry modification
   • Third party control

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

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

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\
   Run]
   • NTSpool = NTSpool.exe



The following registry keys are changed:

– [HKLM\Software\Microsoft\RFC1156Agent\CurrentVersion\Parameters]
   New value:
   • TrapPollTimeMilliSecs = dword:00003a98

– [HKLM\SOFTWARE\Licenses]
   New value:
   • {K7C0DB872A3F777C0} = %hex values%
   • {I29A5EA887C231048} = %hex values%

 IRC To deliver system information and to provide remote control it connects to the following IRC Server:

Server: **********.whyI.org
Port: 2002
Server password: _f34kyfr1ce_
Channel: #P2P3#
Nickname: [00|USA|%number%]
Password: _f34kyfr1ce_

 Injection – It injects itself into a process.

    Process name:
   • svchost.exe

   If successful, the malware process terminates while the injected part remains active.

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


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

Description inserted by Andrei Gherman on Friday, April 18, 2008
Description updated by Andrei Gherman on Friday, April 18, 2008

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