Content

Generic PUP.z!718b939c56af

Type
Program
SubType
-
Discovery Date
05/30/2009
Minimum DAT
5630 (05/29/2009)
Updated DAT
5630 (05/29/2009)
Minimum Engine
5300.2777
Description Added
05/30/2009
Description Modified
05/30/2009 8:04 AM (PT)

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Characteristics

This software is not a virus or a Trojan. It is detected as a "potentially unwanted program" (PUP). PUPs are any piece of software that a reasonably security- or privacy-minded computer user may want to be informed of and, in some cases, remove. PUPs are often made by a legitimate corporate entity for some beneficial purpose, but they alter the security state of the computer on which they are installed, or the privacy posture of the user of the system, such that most users will want to be aware of them.

File PropertyProperty Value
FileNameupgrade.exe
McAfee ArtemisArtemis!718b939c56af
McAfee DetectionGeneric PUP.z
Length271,645 bytes
CRC0398595F
MD5718B939C56AF518738C2EB1E48664980
SHA1313BC3358DFA49D2BCAAF9A1AF3BE562FA93D124

Other Common Detection Aliases

Company NameDetection Name
avastWin32:Adware-gen [Adw]
AVG (GriSoft)Generic2.ABWZ (Adware)
AviraDR/OneStep.D.2
BitDefenderTrojan.Generic.156790
clamavAdware.Onestep-10
Dr.WebAdware.OneStep
EsetWin32/Adware.OneStep (application) (variant)
FortiNetAdware/OneStep
Kasperskynot-a-virus:AdWare.Win32.OneStep.d
microsoftbrowsermodifier:win32/onestepsearch
normanadinstaller.he.dropper
pandaAdware/OneStep (spyware)
risingAdware.Win32.OneStep.a
SophosOneStepSearch (PUA)
Trend MicroADW_ONESTEP.W
vba32Adware.Win32.OneStep.d
V-BusterAdware.OneStep.A (trojan)

Avert® Labs has observed the following system activities:

ActivityRisk Level
Enumerates running processes
Medium
Uses shared memory of other processes
Low
Writes executable in the windows folder
Low
Performs a shell execute of downloaded or existing files
Informational

Other detections that have been observed.

FileNameMcAfee Supported
%PROGRAMFILES%\onestepsearch\onestep.exe
Generic PUP.z
%PROGRAMFILES%\onestepsearch\osopt.exe
Generic PUP.z

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 were analyzed:

  • %USERPROFILE%\local settings\temp\upgrade.exe

    • The following files have been added to the system:

  • %PROGRAMFILES%\onestepsearch
  • %PROGRAMFILES%\onestepsearch\home.js
  • %PROGRAMFILES%\onestepsearch\onestep.dll
  • %PROGRAMFILES%\onestepsearch\onestep.exe
  • %PROGRAMFILES%\onestepsearch\osopt.exe
  • %PROGRAMFILES%\onestepsearch\readme.html
  • %PROGRAMFILES%\onestepsearch\uninstall.exe

    • The following registry elements have been created:

  • HKEY_CURRENT_USER\Software\Microsoft\internet explorer\searchscopes\{5b4c3b43-49b6-42a7-a602-f7acdca0d409}\
    • displayname = onestep search
    • url = http://www.onestepsearch.net/?prt=onestep160&keywords
      ={searchterms}
  • HKEY_LOCAL_MACHINE\Software\Microsoft\internet explorer\searchscopes\{5b4c3b43-49b6-42a7-a602-f7acdca0d409}\
    • displayname = onestep search
    • url = http://www.onestepsearch.net/?prt=onestep160&keywords
      ={searchterms}
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\currentversion\uninstall\onestepsearch\
    • displayname = onestep search 1.0 build 160
    • uninstallstring = c:\program files\onestepsearch\uninstall.exe
  • HKEY_LOCAL_MACHINE\software\onestepsearch\
    • cid = ee00ce61c5a9448fb01a84fed569cdaf
    • dllpath = c:\program files\onestepsearch\onestep.dll
    • initial = 1
    • partner = onestep160
    • primary = 3598
    • showbarsign = 0
    • showtoolbarbutton = 0
    • src = onestep
    • tempinstalldir = c:\program files\onestepsearch
    • version = 316

    • The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\system\controlset001\control\servicecurrent\
    • (default) = 14
  • HKEY_LOCAL_MACHINE\system\currentcontrolset\control\session manager\
    • pendingfilerenameoperations = \??\c:\docume~1\admini~1\locals~1\temp
      \nsj17.tmp\
  • HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_onestep_search_service\0000\control\
    • activeservice = onestep search service

    • Removal

    All Users:

    Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

    1.Disable System Restore (Windows ME/XP only).

    2.Update to current engine and DAT files for detection and removal.

    3.Run a complete system scan.

    Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

    General repair may be unsuccessful in some instances. If this occurs, please submit a sample for further evaluation.

    Aliases

    Aliases

      N/A