Content

Generic Dropper!190AA1AB

Type
Trojan
SubType
-
Discovery Date
07/22/2008
Length
43537
Minimum DAT
5343 (07/21/2008)
Updated DAT
5343 (07/21/2008)
Minimum Engine
5.2.00
Description Added
07/22/2008
Description Modified
07/22/2008 5:55 AM (PT)
Risk Assessment
Corporate User
Low
Home User
Low

Tab Navigation

Characteristics

File PropertyProperty Value
File Name626247~1.exe
McAfee DetectionGeneric Dropper
Length43,537 bytes
CRC32190AA1AB
MD5c4d8530357166cb2c6fb10faa837b44b
SHA1AF2B42C89714ECDDC3E253AC2309D401EA20884B

Other Common Detection Aliases

Company NameDetection Name
AvastWin32:LdPinch-CTD [Trj]
AVG (GriSoft)Dropper.Agent.IAC
AviraDR/MicroJoiner.Gen
BitDefenderTrojan.Dropper.LdPinch.AH
ClamAVTrojan.Dropper-6679
Dr.WebTrojan.MulDrop.15079
FortiNetW32/DROPPER.IAC!tr
F-ProtW32/Agent.BJ.gen!Eldorado
KasperskyTrojan-Spy.Win32.Webmoner.jt
Microsofttrojandropper:win32/small.ajs
SophosMal/Generic-A
SymantecInfostealer
Vba32Trojan-Spy.Win32.Zbot.vb

Avert® Labs has observed the following system activities:

ActivityRisk Level
Modifies Memory of Other Processes
High
Enumerates running Processes
Medium
Creates Registry Keys and Data values persistent on OS Reboot
Low
Enumerates open windows
Low
Writes Executable in the Windows Folder
Low
Program often suspends itself
Informational

System Changes

These are general defaults for typical path variables. (Although they may differ, these examples are common.):
%WinDir% = \WINDOWS (Windows 9x/ME/XP/Vista), \WINNT (Windows NT/2000)
%SystemDir% = \WINDOWS\SYSTEM (Windows 98/ME), \WINDOWS\SYSTEM32 (Windows XP/Vista), \WINNT\SYSTEM32 (Windows NT/2000)
%ProgramFiles% = \Program Files

The following files have been added to the system:

  • %WINDIR%\system32\ntos.exe
    • %WINDIR%\system32\wsnpoem
    • %WINDIR%\system32\wsnpoem\audio.dll
    • %WINDIR%\system32\wsnpoem\video.dll
    • The following registry elements have been changed:

    • HKEY_LOCAL_MACHINE\software\microsoft\windows nt\currentversion\network\
      • uid = vmg-client_003558eb
    • HKEY_LOCAL_MACHINE\software\microsoft\windows nt\currentversion\winlogon\
      • userinit = c:\windows\system32\userinit.exe,c:\windows\system32
        \ntos.exe,
    • hkey_users\.default\software\microsoft\windows\currentversion\explorer\
      • {f710fa10-2031-3106-8872-93a2b5c5c620} = 115591
    • hkey_users\.default\software\microsoft\windows\currentversion\run\
      • userinit = c:\windows\system32\ntos.exe
    • hkey_users\s-1-5-19\software\microsoft\windows nt\currentversion\network\
      • uid = vmg-client_00356ce1
    • hkey_users\s-1-5-20\software\microsoft\windows nt\currentversion\network\
      • uid = vmg-client_00356cc2
    • The applications created the following network connection(s):

    • zelog.x10hosting.com port (80) Protocol (http)
      • hxxp://zelog.x10hosting.com /***********
    • Symptoms

      This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

      Method of Infection

      Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

      Removal

      AVERT recommends to always use latest DATs and engine. This threat will be cleaned if you have this combination.

      Additional Windows ME/XP removal considerations

      Variants

      Variants

        N/A

      All Information

      Overview -

      This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

      Characteristics

      Characteristics -

      File PropertyProperty Value
      File Name626247~1.exe
      McAfee DetectionGeneric Dropper
      Length43,537 bytes
      CRC32190AA1AB
      MD5c4d8530357166cb2c6fb10faa837b44b
      SHA1AF2B42C89714ECDDC3E253AC2309D401EA20884B

      Other Common Detection Aliases

      Company NameDetection Name
      AvastWin32:LdPinch-CTD [Trj]
      AVG (GriSoft)Dropper.Agent.IAC
      AviraDR/MicroJoiner.Gen
      BitDefenderTrojan.Dropper.LdPinch.AH
      ClamAVTrojan.Dropper-6679
      Dr.WebTrojan.MulDrop.15079
      FortiNetW32/DROPPER.IAC!tr
      F-ProtW32/Agent.BJ.gen!Eldorado
      KasperskyTrojan-Spy.Win32.Webmoner.jt
      Microsofttrojandropper:win32/small.ajs
      SophosMal/Generic-A
      SymantecInfostealer
      Vba32Trojan-Spy.Win32.Zbot.vb

      Avert® Labs has observed the following system activities:

      ActivityRisk Level
      Modifies Memory of Other Processes
      High
      Enumerates running Processes
      Medium
      Creates Registry Keys and Data values persistent on OS Reboot
      Low
      Enumerates open windows
      Low
      Writes Executable in the Windows Folder
      Low
      Program often suspends itself
      Informational

      System Changes

      These are general defaults for typical path variables. (Although they may differ, these examples are common.):
      %WinDir% = \WINDOWS (Windows 9x/ME/XP/Vista), \WINNT (Windows NT/2000)
      %SystemDir% = \WINDOWS\SYSTEM (Windows 98/ME), \WINDOWS\SYSTEM32 (Windows XP/Vista), \WINNT\SYSTEM32 (Windows NT/2000)
      %ProgramFiles% = \Program Files

      The following files have been added to the system:

    • %WINDIR%\system32\ntos.exe
      • %WINDIR%\system32\wsnpoem
      • %WINDIR%\system32\wsnpoem\audio.dll
      • %WINDIR%\system32\wsnpoem\video.dll
      • The following registry elements have been changed:

      • HKEY_LOCAL_MACHINE\software\microsoft\windows nt\currentversion\network\
        • uid = vmg-client_003558eb
      • HKEY_LOCAL_MACHINE\software\microsoft\windows nt\currentversion\winlogon\
        • userinit = c:\windows\system32\userinit.exe,c:\windows\system32
          \ntos.exe,
      • hkey_users\.default\software\microsoft\windows\currentversion\explorer\
        • {f710fa10-2031-3106-8872-93a2b5c5c620} = 115591
      • hkey_users\.default\software\microsoft\windows\currentversion\run\
        • userinit = c:\windows\system32\ntos.exe
      • hkey_users\s-1-5-19\software\microsoft\windows nt\currentversion\network\
        • uid = vmg-client_00356ce1
      • hkey_users\s-1-5-20\software\microsoft\windows nt\currentversion\network\
        • uid = vmg-client_00356cc2
      • The applications created the following network connection(s):

      • zelog.x10hosting.com port (80) Protocol (http)
        • hxxp://zelog.x10hosting.com /***********
      • Symptoms

        Symptoms -

        This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

        Method of Infection

        Method of Infection -

        Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

        Removal -

        Removal -

        AVERT recommends to always use latest DATs and engine. This threat will be cleaned if you have this combination.

        Additional Windows ME/XP removal considerations

        Variants

        Variants -

          N/A