Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'run' = ''
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'run' = '<DRIVERS>\dllhost.exe'
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = ''
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '%WINDIR%\mstinit.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinLogon' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinLogon' = '%APPDATA%\Microsoft\winlogon.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'DllHost3g' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'DllHost3g' = '<LS_APPDATA>\Microsoft\Windows\dllhst3g.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Sessmgr' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Sessmgr' = '%APPDATA%\sessmgr.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Microsoft RSVP' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Microsoft RSVP' = '%APPDATA%\Microsoft\rsvp.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'IEudInit' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'IEudInit' = '%WINDIR%\ieudinit.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Session Manager' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Session Manager' = '<LS_APPDATA>\Microsoft\Windows\smss.exe'
Malicious functions:
Creates and executes the following:
- '<DRIVERS>\dllhost.exe' /a 1
Modifies file system:
Creates the following files:
- <DRIVERS>\dllhost.exe
- <DRIVERS>\RCX6.tmp
- %WINDIR%\mstinit.exe
- %WINDIR%\RCX5.tmp
- %APPDATA%\Microsoft\winlogon.exe
- %APPDATA%\Microsoft\RCX8.tmp
- <LS_APPDATA>\Microsoft\Windows\dllhst3g.exe
- <LS_APPDATA>\Microsoft\Windows\RCX7.tmp
- %WINDIR%\RCX4.tmp
- %APPDATA%\Microsoft\RCX1.tmp
- %APPDATA%\sessmgr.exe
- %TEMP%\Twain002.Mtx
- %APPDATA%\Microsoft\rsvp.exe
- <LS_APPDATA>\Microsoft\Windows\RCX3.tmp
- %WINDIR%\ieudinit.exe
- %APPDATA%\RCX2.tmp
- <LS_APPDATA>\Microsoft\Windows\smss.exe
Deletes the following files:
- <DRIVERS>\dllhost.exe
- %WINDIR%\mstinit.exe
- %APPDATA%\Microsoft\winlogon.exe
- <LS_APPDATA>\Microsoft\Windows\dllhst3g.exe
- %APPDATA%\sessmgr.exe
- %APPDATA%\Microsoft\rsvp.exe
- %WINDIR%\ieudinit.exe
- <LS_APPDATA>\Microsoft\Windows\smss.exe
Substitutes the following files:
- <DRIVERS>\dllhost.exe
- %WINDIR%\mstinit.exe
- %APPDATA%\Microsoft\winlogon.exe
- <LS_APPDATA>\Microsoft\Windows\dllhst3g.exe
- %APPDATA%\sessmgr.exe
- %APPDATA%\Microsoft\rsvp.exe
- %WINDIR%\ieudinit.exe
- <LS_APPDATA>\Microsoft\Windows\smss.exe
Network activity:
Connects to:
- '87.##5.209.168':80
- 'www.wh###sts.org':80
TCP:
HTTP GET requests:
- http://www.ms###csi.com/ncsi.txt via 87.##5.209.168
- http://www.google.com/protocol.php?p=######################################################### via www.wh###sts.org
UDP:
- DNS ASK www.wh###sts.org
