Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Classes\cag\shell\open\command] '' = '"%PROGRAM_FILES%\CentraStage\Gui.exe" %1'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'CentraStage' = '%PROGRAM_FILES%\CentraStage\Gui.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\uvnc_service] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\CagService] 'Start' = '00000002'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%PROGRAM_FILES%\CentraStage\UltraVNC\winvnc.exe' = '%PROGRAM_FILES%\CentraStage\UltraVNC\winvnc.exe:*:Enabled:uvnc_service'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%PROGRAM_FILES%\CentraStage\Gui.exe' = '%PROGRAM_FILES%\CentraStage\Gui.exe:*:Enabled:CentraStage Client'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%PROGRAM_FILES%\CentraStage\CagService.exe' = '%PROGRAM_FILES%\CentraStage\CagService.exe:*:Enabled:CentraStage Service'
Creates and executes the following:
- '%PROGRAM_FILES%\CentraStage\UltraVNC\winvnc.exe' -service
- '%PROGRAM_FILES%\CentraStage\Gui.exe'
- '%PROGRAM_FILES%\CentraStage\UltraVNC\winvnc.exe' -service_run
- '%PROGRAM_FILES%\CentraStage\CagService.exe'
- '%TEMP%\nso2.tmp\ns3.tmp' taskkill /f /im winvnc.exe
- '%TEMP%\nso2.tmp\ns4.tmp' taskkill /f /im winvnc.exe
Executes the following:
- '<SYSTEM32>\regsvr32.exe' /s "%PROGRAM_FILES%\CentraStage\scvncctrl.dll"
- '<SYSTEM32>\taskkill.exe' /f /im winvnc.exe
Modifies file system :
Creates the following files:
- %TEMP%\nso2.tmp\nsProcess.dll
- %TEMP%\nso2.tmp\SimpleFC.dll
- %TEMP%\nso2.tmp\nsSCM.dll
- %TEMP%\nso2.tmp\ns3.tmp
- %TEMP%\nso2.tmp\nsExec.dll
- %ALLUSERSPROFILE%\Start Menu\Programs\CentraStage\CAG Monitor.lnk
- %TEMP%\nso2.tmp\nsisXML.dll
- %ALLUSERSPROFILE%\Start Menu\Programs\CentraStage\CAG Browser.lnk
- %ALLUSERSPROFILE%\Start Menu\Programs\CentraStage\Uninstall CentraStage.lnk
- %ALLUSERSPROFILE%\Start Menu\Programs\CentraStage\Restart CentraStage.lnk
- %PROGRAM_FILES%\CentraStage\Log.txt
- %TEMP%\nso2.tmp\ns4.tmp
- %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\host-index.new
- %PROGRAM_FILES%\CentraStage\uninst.exe
- <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\4.0.1006.1313\2vmogbw_.newcfg
- <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\4.0.1006.1313\289pminf.newcfg
- %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\hosts\CagService.addins
- C:\Documents and Settings\LocalService\Local Settings\Application Data\CentraStage\CagService.exe_Url_xlyuva3yad0p0upwg4lvnyuzugpc22pt\4.0.1006.1313\_1-tjqz7.newcfg
- %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-data\1\Cag.Core,1.0.maddin.new
- %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-dir-data\C__Program Files_CentraStage_dea16b41.data.new
- %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-data\1\__WindowsAgent,1.0.maddin.new
- %PROGRAM_FILES%\CentraStage\UltraVNC\ultravnc.ini
- %PROGRAM_FILES%\CentraStage\Core.XmlSerializers.dll
- %PROGRAM_FILES%\CentraStage\Core.dll
- %PROGRAM_FILES%\CentraStage\Gui.exe
- %PROGRAM_FILES%\CentraStage\Interop.MSTSCLib.dll
- %PROGRAM_FILES%\CentraStage\ICSharpCode.SharpZipLib.dll
- %PROGRAM_FILES%\CentraStage\RestartCAG.exe
- %PROGRAM_FILES%\CentraStage\CSIcon.ico
- %PROGRAM_FILES%\CentraStage\AxInterop.MSTSCLib.dll
- %PROGRAM_FILES%\CentraStage\CagService.exe
- %PROGRAM_FILES%\CentraStage\AxInterop.ViewerX.dll
- %PROGRAM_FILES%\CentraStage\Interop.ViewerX.dll
- %PROGRAM_FILES%\CentraStage\WindowsAgent.dll
- %PROGRAM_FILES%\CentraStage\WeifenLuo.WinFormsUI.Docking.dll
- %PROGRAM_FILES%\CentraStage\UltraVNC\cad.exe
- %PROGRAM_FILES%\CentraStage\UltraVNC\winvnc.exe
- %PROGRAM_FILES%\CentraStage\UltraVNC\SCHook.dll
- %PROGRAM_FILES%\CentraStage\Mono.Addins.dll
- %PROGRAM_FILES%\CentraStage\LinqBridge.dll
- %PROGRAM_FILES%\CentraStage\Mono.Addins.Setup.dll
- %PROGRAM_FILES%\CentraStage\Transitions.dll
- %PROGRAM_FILES%\CentraStage\scvncctrl.dll
Deletes the following files:
- %TEMP%\nso2.tmp\nsProcess.dll
- %TEMP%\nso2.tmp\nsSCM.dll
- %TEMP%\nso2.tmp\SimpleFC.dll
- %TEMP%\nso2.tmp\nsisXML.dll
- %TEMP%\nso2.tmp\ns3.tmp
- %TEMP%\nso2.tmp\ns4.tmp
- %TEMP%\nso2.tmp\nsExec.dll
Moves the following files:
- from %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\host-index.new to %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\host-index
- from <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\4.0.1006.1313\289pminf.newcfg to <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\4.0.1006.1313\user.config
- from <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\4.0.1006.1313\2vmogbw_.newcfg to <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\4.0.1006.1313\user.config
- from %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-dir-data\C__Program Files_CentraStage_dea16b41.data.new to %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-dir-data\C__Program Files_CentraStage_dea16b41.data
- from C:\Documents and Settings\LocalService\Local Settings\Application Data\CentraStage\CagService.exe_Url_xlyuva3yad0p0upwg4lvnyuzugpc22pt\4.0.1006.1313\_1-tjqz7.newcfg to C:\Documents and Settings\LocalService\Local Settings\Application Data\CentraStage\CagService.exe_Url_xlyuva3yad0p0upwg4lvnyuzugpc22pt\4.0.1006.1313\user.config
- from %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-data\1\Cag.Core,1.0.maddin.new to %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-data\1\Cag.Core,1.0.maddin
- from %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-data\1\__WindowsAgent,1.0.maddin.new to %ALLUSERSPROFILE%\Application Data\CentraStage\Addins\CagService\addin-db-001\addin-data\1\__WindowsAgent,1.0.maddin
Network activity:
Connects to:
- 'cs#.##unkclick.net':443
- 'wp#d':80
TCP:
HTTP GET requests:
- wp#d/wpad.dat
UDP:
- DNS ASK wp#d
- DNS ASK cs#.##unkclick.net
- DNS ASK 25#.###.#55.255.in-addr.arpa
- '25#.#55.255.255':13300
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '' WindowName: ''
