Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'DllHst' = '%APPDATA%\dllhst3g.exe /waitservice'
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '<LS_APPDATA>\Microsoft\spoolsv.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Esent Utl' = '<LS_APPDATA>\esentutl.exe /waitservice'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'CmSTP' = '<DRIVERS>\cmstp.exe /waitservice'
Malicious functions:
Creates and executes the following:
- <LS_APPDATA>\Microsoft\spoolsv.exe /waitservice
Modifies file system :
Creates the following files:
- %APPDATA%\dllhst3g.exe
- <LS_APPDATA>\Microsoft\spoolsv.exe
- <LS_APPDATA>\esentutl.exe
- <DRIVERS>\cmstp.exe
