Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\GFUpd.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rfwstub.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Runiep.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\GuardField.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RsAgent.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RsMain.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwmain.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavStub.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KASARP.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RAV.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\VPTRAY.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ANTIARP.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavstart.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVPFW.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kwatch.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kmailmon.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PFW.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\HijackThis.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Trojanwall.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\TrojDie.KXP] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kissvc.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kav32.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AutoRun.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KPfwSvc.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwsrv.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SREngLdr.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rsaupd.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwProxy.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\QQDoctor.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\TrojanDetector.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ArSwp.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RSTray.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CCenter.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMonD.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Ravservice.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RAVTRAY.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavTask.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rsnetsvr.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ScanFrm.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMon.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safebox.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360rpt.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safe.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVP.COM] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvMonitor.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\safeboxTray.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVP.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Mmsk.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Ast.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KRegEx.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Frameworkservice.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AutoRunKiller.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\VPC32.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\WOPTILITIES.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Regedit.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVWSC.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVMonxp.KXP] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\IceSword.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Iparmor.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nod32kui.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32krn.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVSrvXP.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Navapsvc.EXE] 'debugger' = '<SYSTEM32>\dllcache\spoolsv.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\lspnsl] 'ImagePath' = '%WINDIR%\fonts\lspnsl.sys'
- [<HKLM>\SYSTEM\ControlSet001\Services\hat] 'ImagePath' = '%WINDIR%\Fonts\hat.sys'
Creates the following files on removable media:
- <Drive name for removable media>:\JX.PIF
- <Drive name for removable media>:\AUTORUN.INF
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- '<SYSTEM32>\sc.exe' delete RavCCenter
- '<SYSTEM32>\cmd.exe' /c sc delete ekrn
- '<SYSTEM32>\cmd.exe' /c sc delete RsRavMon
- '<SYSTEM32>\sc.exe' delete RavTask
- '<SYSTEM32>\sc.exe' delete RsRavMon
- '<SYSTEM32>\sc.exe' delete RsScanSrv
- '<SYSTEM32>\sc.exe' delete ekrn
- '<SYSTEM32>\cmd.exe' /c net1 start server
- '<SYSTEM32>\rundll32.exe' c:\rssd.dll,RundllTest
- '%ProgramFiles%\WUHANWANGD.pif'
- '<SYSTEM32>\net1.exe' start server
- '<SYSTEM32>\cmd.exe' /c sc delete RavTask
- '<SYSTEM32>\cmd.exe' /c sc delete RsScanSrv
- '<SYSTEM32>\cmd.exe' /c sc delete RavCCenter
Terminates or attempts to terminate
the following user processes:
- 360tray.exe
- AVP.EXE
Restores hooked functions in System Service Descriptor Table (SSDT).
Modifies file system:
Creates the following files:
- %WINDIR%\Fonts\lspnsl.sys
- C:\JX.PIF
- %ProgramFiles%\av.pif
- <SYSTEM32>\td.ini
- C:\AUTORUN.INF
- C:\rssd.dll
- %ProgramFiles%\WUHANWANGD.pif
- %TEMP%\dll1.tmp
- %WINDIR%\Fonts\hat.sys
Sets the 'hidden' attribute to the following files:
- C:\JX.PIF
- <Drive name for removable media>:\AUTORUN.INF
- <Drive name for removable media>:\JX.PIF
- <Full path to file>
- %ProgramFiles%\WUHANWANGD.pif
- C:\AUTORUN.INF
Deletes the following files:
- C:\rssd.dll
- %WINDIR%\Fonts\lspnsl.sys
- %WINDIR%\Fonts\hat.sys
- %ProgramFiles%\WUHANWANGD.pif
Moves the following system files:
- from <SYSTEM32>\mfc71.dll to <SYSTEM32>\mfc1.dll
Network activity:
Connects to:
- 'g.##c8.com':80
- 'localhost':1037
TCP:
HTTP GET requests:
- http://g.##c8.com/dd/x.gif
- http://g.##c8.com/tt.txt
UDP:
- DNS ASK g.##c8.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'AfxControlBar42s' WindowName: ''
