Avira Virus Lab

BDS/Backdoor.A.3920

  • Name
    BDS/Backdoor.A.3920
  • Date discovered
    Oct 1, 2015
  • Type
    Malware
  • Impact
    Medium 
  • Reported Infections
    Low 
  • Operating System
    Windows
  • VDF version
    7.11.224.132 (2015-04-16 11:58)

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The term 'BDS' denotes a backdoor server program. Backdoor server programs are used to spy out, modify, or delete data.

  • VDF
    7.11.224.132 (2015-04-16 11:58)
  • Aliases
    Avast: Win32:Downloader-UCK
    AVG: Generic_r.DCT
    Dr. Web: Win32.HLLW.Autoruner2.7881
    F-PROT: W32/QQhelper.C.gen!Eldorado (generic, not disinfectable)
    McAfee: RDN/Generic Downloader.x!nh
    Microsoft: DDoS:Win32/Nitol.A
    G Data: Generic.ServStart.3FB653A9
    Kaspersky Lab: HEUR:Trojan.Win32.Generic
    Bitdefender: Generic.ServStart.3FB653A9
    ESET: Win32/ServStart.AD trojan
  • Files
    The following copies of itself are created:
    • %SYSDIR%\ccywco.exe
  • Registry
    The following registry entries are added:
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Defghi Kewrlmnopqr Tuv ("Type": dword:00000010; "Start": dword:00000002; "ErrorControl": dword:00000000; "ImagePath": "%SYSDIR%\ccywco.exe"; "DisplayName": "Defghi Klmnweropqr Tuvwxyab Defg"; "ObjectName": "LocalSystem")
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Defghi Kewrlmnopqr Tuv\Security ("Security": %hex values%)
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_DEFGHI_KEWRLMNOPQR_TUV ("NextInstance": dword:00000001)
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_DEFGHI_KEWRLMNOPQR_TUV\0000 ("Service": "Defghi Kewrlmnopqr Tuv"; "Legacy": dword:00000001; "ConfigFlags": dword:00000000; "Class": "LegacyDriver"; "ClassGUID": "{8ECC055D-047F-11D1-A537-0000F8753ED1}"; "DeviceDesc": "Defghi Klmnweropqr Tuvwxyab Defg")
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_DEFGHI_KEWRLMNOPQR_TUV\0000\Control ("*NewlyCreated*": dword:00000000; "ActiveService": "Defghi Kewrlmnopqr Tuv")
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Defghi Kewrlmnopqr Tuv\Enum ("0": "Root\LEGACY_DEFGHI_KEWRLMNOPQR_TUV\0000"; "Count": dword:00000001; "NextInstance": dword:00000001)
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\ServiceCurrent (@: dword:0000000f)
    • HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Defghi Kewrlmnopqr Tuv ("Description": "Defghijk Mwernopqrstu Wxyabcd Fghijklm Opq")

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