Virus:TR/Renos.AB.4
Date discovered:01/09/2010
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low
Static file:Yes
File size:258.560 Bytes
MD5 checksum:fdf0aec265651c74adf4fb803c75888d
IVDF version:7.10.11.65 - Wednesday, September 1, 2010

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Sophos: Mal/FakeAV-CX
   •  DrWeb: BackDoor.Click.1058


Platforms / OS:
   • Windows 98
   • Windows 98 SE
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Vista
   • Windows Server 2008
   • Windows 7


Side effects:
   • Registry modification

 Registry The following registry keys are added:

– [HKCU\Software\Microsoft\Handle]
– [HKLM\SYSTEM\CurrentControlSet\Services\SSHNAS]
   • "Type"=dword:%hex values%
   • "Start"=dword:%hex values%
   • "ErrorControl"=dword:%hex values%
   • "ImagePath"=hex(2):2%hex values%
   • "DisplayName"="SSHNAS"
   • "ObjectName"="LocalSystem"

– [HKLM\SYSTEM\CurrentControlSet\Services\SSHNAS\Parameters]
   • "ServiceDll"=hex(2):%hex values%

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



The following registry key is changed:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost]
   New value:
   • "netsvcs"=hex(7):%hex values%

 File details Programming language:
 The malware program was written in MS Visual C++.

Description inserted by Christoph Baumann on Friday, September 3, 2010
Description updated by Christoph Baumann on Friday, September 3, 2010

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