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Virus:BDS/Cycbot.B.276
Date discovered:04/11/2010
Type:Backdoor Server
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:167.424 Bytes
MD5 checksum:326e54311c72fef2e36add1f5dcc0bf6
VDF version:7.10.06.38
IVDF version:7.10.13.134 - Thursday, November 4, 2010

 General Aliases:
   •  Kaspersky: Trojan.Win32.Jorik.Gbot.aea
   •  F-Secure: Trojan.Win32.Jorik.Gbot.aea
   •  Bitdefender: Backdoor.Cycbot.C
     GData: Backdoor.Cycbot.C
     DrWeb: BackDoor.Gbot.33


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %HOME%\Application Data\Microsoft\conhost.exe



The following file is created:

%HOME%\Application Data\C826.657

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "conhost"="%HOME%\Application Data\Microsoft\conhost.exe"

 Miscellaneous  Checks for an internet connection by contacting the following web site:
   • http://www.google.com
Accesses internet resources:
   • http://japanesegreenteaonline.com/assets/images/**********?v95=%number%&tq=%character string%
   • http://freephotostoreonline.com/blog/images/**********?v58=%number%&tq=%character string%
   • http://zonedg.com/**********?tq=%character string%
   • http://startrack-1.com/blog/images/**********?v73=%number%&tq=%character string%


Mutex:
It creates the following Mutexes:
   • {7791C364-DE4E-4000-9E92-9CCAFDDD90DC}
   • {A5B35993-9674-43cd-8AC7-5BC5013E617B}
   • {B37C48AF-B05C-4520-8B38-2FE181D5DC78}
   • {61B98B86-5F44-42b3-BCA1-33904B067B81}

 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.

Description inserted by Petre Galan on Wednesday, June 1, 2011
Description updated by Petre Galan on Wednesday, June 1, 2011

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