Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '%WINDIR%\System\esentutl.exe'
Malicious functions:
Creates and executes the following:
- %WINDIR%\system\esentutl.exe /waitservice
Modifies file system :
Creates the following files:
- %WINDIR%\sessmgr.exe
- %WINDIR%\system\esentutl.exe
- %WINDIR%\spoolsv.exe
- <LS_APPDATA>\clipsrv.exe
Network activity:
Connects to:
- 'www.ka###rus.com':80
TCP:
HTTP GET requests:
- www.ka###rus.com/img/gt.cgi?s=#################
UDP:
- DNS ASK www.ka###rus.com
- '<Private IP address>':1035
