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Virus:WORM/Pushbot.C.31
Date discovered:18/05/2011
Type:Worm
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:40.960 Bytes
MD5 checksum:0621D5A4892AF53FB6D73AAD1D5C61E7
VDF version:7.11.08.60 - Wednesday, May 18, 2011
IVDF version:7.11.08.60 - Wednesday, May 18, 2011

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan-Downloader.Win32.Genome.aznh
   •  TrendMicro: TROJ_AGENT.HMKL
   •  Sophos: W32/Autorun-BQG
   •  Panda: W32/Mailworm.U.worm


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Server 2008
   • Windows 7


Side effects:
   • Drops files
   • Registry modification

 Files It copies itself to the following location:
   • %APPDATA%\HEX-5823-6893-6818\jutched.exe

 Registry One of the following values is added in order to run the process after reboot:

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Java Update Manager"="%APPDATA%\HEX-5823-6893-6818\jutched.exe"



The following registry keys are added:

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List\%APPDATA%\
   HEX-5823-6893-6818]
   • "jutched.exe"="%APPDATA%\HEX-5823-6893-6818\jutched.exe:*:Enabled:Java Update Manager"

– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List\%APPDATA%\
   HEX-5823-6893-6818]
   • "jutched.exe"="%APPDATA%\HEX-5823-6893-6818\jutched.exe:*:Enabled:Java Update Manager"

 Backdoor Contact server:
The following:
   • 67.215.65.**********:1866


 Miscellaneous  Checks for an internet connection by contacting the following web site:
   • msnsolution.nicaze.net

 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 Andrei Ilie on Tuesday, June 7, 2011
Description updated by Andrei Ilie on Thursday, July 7, 2011

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