Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'CentraStage' = '%ProgramFiles%\CentraStage\Gui.exe'
- [<HKLM>\SOFTWARE\Classes\cag\shell\open\command] '' = '"%ProgramFiles%\CentraStage\Gui.exe" %1'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\CagService] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\CagService] 'ImagePath' = '%ProgramFiles%\CentraStage\CagService.exe'
- [<HKLM>\SYSTEM\ControlSet001\Services\uvnc_service] 'ImagePath' = '%ProgramFiles%\CentraStage\UltraVNC\winvnc.exe -service'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ProgramFiles%\CentraStage\CagService.exe' = '%ProgramFiles%\CentraSta...
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ProgramFiles%\CentraStage\Gui.exe' = '%ProgramFiles%\CentraStage\Gui....
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ProgramFiles%\CentraStage\UltraVNC\winvnc.exe' = '%ProgramFiles%\Cent...
Modifies file system:
Creates the following files:
- %ProgramFiles%\CentraStage\uninst.exe
- C:\Documents and Settings\LocalService\Local Settings\Application Data\CentraStage\CagService.exe_Url_xlyuva3yad0p0upwg4lvnyuzugpc22pt\3.3.485.564\gc_hem9n.newcfg
- %TEMP%\nse2.tmp\nsSCM.dll
- %TEMP%\nse2.tmp\SimpleFC.dll
- %HOMEPATH%\Start Menu\Programs\CentraStage\Uninstall CentraStage.lnk
- %HOMEPATH%\Start Menu\Programs\CentraStage\System Tray Monitor.lnk
- %ProgramFiles%\CentraStage\UltraVNC\ultravnc.ini
- %ProgramFiles%\CentraStage\UltraVNC\winvnc.exe
- %ProgramFiles%\CentraStage\UltraVNC\SCHook.dll
- %ProgramFiles%\CentraStage\UltraVNC\cad.exe
- %ProgramFiles%\CentraStage\CagService.exe.config
- %ProgramFiles%\CentraStage\WeifenLuo.WinFormsUI.Docking.dll
- <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\3.3.485.564\mkkn3zyh.newcfg
- %ProgramFiles%\CentraStage\scvncctrl.dll
- %ProgramFiles%\CentraStage\Interop.ViewerX.dll
- %ProgramFiles%\CentraStage\Interop.MSTSCLib.dll
- %ProgramFiles%\CentraStage\ICSharpCode.SharpZipLib.dll
- %ProgramFiles%\CentraStage\Hook.dll
- %ProgramFiles%\CentraStage\Gui.exe
- %ProgramFiles%\CentraStage\Core.dll
- %ProgramFiles%\CentraStage\Common.dll
- %ProgramFiles%\CentraStage\CagService.exe
- %ProgramFiles%\CentraStage\AxInterop.ViewerX.dll
- %ProgramFiles%\CentraStage\AxInterop.MSTSCLib.dll
- %ProgramFiles%\CentraStage\CSIcon.ico
- %ProgramFiles%\CentraStage\Remote.dll
- <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\3.3.485.564\ytzo_1pk.newcfg
Deletes the following files:
- %TEMP%\nse2.tmp\nsSCM.dll
- %TEMP%\nse2.tmp\SimpleFC.dll
Moves the following files:
- from C:\Documents and Settings\LocalService\Local Settings\Application Data\CentraStage\CagService.exe_Url_xlyuva3yad0p0upwg4lvnyuzugpc22pt\3.3.485.564\gc_hem9n.newcfg to C:\Documents and Settings\LocalService\Local Settings\Application Data\CentraStage\CagService.exe_Url_xlyuva3yad0p0upwg4lvnyuzugpc22pt\3.3.485.564\user.config
- from <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\3.3.485.564\mkkn3zyh.newcfg to <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\3.3.485.564\user.config
- from <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\3.3.485.564\ytzo_1pk.newcfg to <LS_APPDATA>\CentraStage\Gui.exe_Url_khrmndpte2fmecbocf01mfhsyypbob3c\3.3.485.564\user.config
Network activity:
Connects to:
- 'localhost':13229
- 'wp#d':80
- 'ce#####1.virtualit.biz':80
TCP:
HTTP GET requests:
- http://11#.#11.111.1/wpad.dat via wp#d
HTTP POST requests:
- http://12#.#.0.1:13229/CsLinkManageFactory via localhost
- http://12#.#.0.1:13229/ICsLinkTaskManage via localhost
- http://12#.#.0.1:13229/UpdateManageFactory via localhost
- http://12#.#.0.1:13229/SoftwareManageFactory via localhost
- http://12#.#.0.1:13229/RelayManageFactory via localhost
- http://12#.#.0.1:13229/IRelayTaskManage via localhost
UDP:
- DNS ASK 25#.###.#55.255.in-addr.arpa
- DNS ASK wp#d
- DNS ASK ce#####1.virtualit.biz
- '25#.#55.255.255':13300
Miscellaneous:
Creates and executes the following:
- '%ProgramFiles%\CentraStage\CagService.exe'
- '%ProgramFiles%\CentraStage\Gui.exe'
Executes the following:
- '<SYSTEM32>\regsvr32.exe' /s "%ProgramFiles%\CentraStage\scvncctrl.dll"
