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Date discovered:18/05/2010
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:116.224 Bytes
MD5 checksum:0783b42a2ed1c4597d06e398bb153362
VDF version:

 General Aliases:
   •  Symantec: Trojan.FakeAV
   •  Mcafee: PWS-Zbot
   •  Kaspersky: Trojan-Spy.Win32.Zbot.ajlk
   •  TrendMicro: TSPY_ZBOT.BYW
   •  Sophos: Mal/FakeAV-DL
   •  Bitdefender: Trojan.Generic.3953930
   •  Panda: Trj/Sinowal.XDY
   •  Eset: Win32/Spy.Zbot.YW
AhnLab: Win-Trojan/Zbot.116224.G
     Authentium: W32/Zbot.AVC
     DrWeb: Trojan.PWS.Panda.244
     Fortinet: W32/Zbot!tr
     Ikarus: Trojan-Spy.Win32.Zbot
     Norman: W32/Zbot.SUF
     Rising: Trojan.Win32.Generic.521C2AE7

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 2000
   • Windows XP
   • Windows 2003
    Windows Vista
    Windows Server 2008
    Windows 7

Side effects:
   • Registry modification

 Files It copies itself to the following location:
   • %SYSDIR%\sdra64.exe

 Registry The following registry key is changed:

[HKLM\software\microsoft\windows nt\currentversion\winlogon]
   Old value:
   • "userinit"="%SYSDIR%\userinit.exe,"
   New value:
   • "userinit"="%SYSDIR%\userinit.exe,%SYSDIR%\sdra64.exe,"

 Backdoor Contact server:
The following:

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

Description inserted by Irina Diaconescu on Wednesday, August 18, 2010
Description updated by Andrei Ivanes on Monday, August 23, 2010

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