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Virus:TR/Dldr.Small.CD
Date discovered:23/03/2010
Type:Trojan
Subtype:Downloader
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:42.050 Bytes
MD5 checksum:63c25b44951de483ad5b566c8c89be2c
VDF version:7.10.02.68
IVDF version:7.10.05.176 - Tuesday, March 23, 2010

 General Aliases:
   •  Kaspersky: Backdoor.Win32.IRCBot.suz
   •  F-Secure: Backdoor.Win32.IRCBot.suz
   •  Bitdefender: Trojan.Generic.5905157
   •  GData: Trojan.Generic.5905157
   •  DrWeb: Trojan.Packed.21565


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Third party control
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %recycle bin%\R-1-5-21-1482476501-1644491937-682003330-1013\vcleaner.exe



The following file is created:

%recycle bin%\R-1-5-21-1482476501-1644491937-682003330-1013\Desktop.ini

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

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Taskman"="%recycle bin%\R-1-5-21-1482476501-1644491937-682003330-1013\vcleaner.exe"

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

Server: hubs.ish**********.com
Port: 1110

 Injection – It injects itself as a remote thread into a process.

    Process name:
   • explorer.exe


 Miscellaneous Mutex:
It creates the following Mutex:
   • fsmgr

 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.

Descripción insertada por Petre Galan el viernes, 3 de junio de 2011
Descripción actualizada por Petre Galan el viernes, 3 de junio de 2011

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