Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'load' = '"%APPDATA%\Microsoft\esentutl.exe"'
Malicious functions:
Executes the following:
- <SYSTEM32>\dumprep.exe 2784 -dm 7 7 "%TEMP%\WERc57f.dir00\esentutl.exe.hdmp" 16325836412027324
- <SYSTEM32>\dumprep.exe 2784 -dm 7 7 "%TEMP%\WERc57f.dir00\esentutl.exe.mdmp" 16325836412027304
Modifies file system :
Creates the following files:
- %TEMP%\WERc57f.dir00\esentutl.exe.hdmp
- %TEMP%\WERc57f.dir00\esentutl.exe.mdmp
- %TEMP%\WERc57f.dir00\manifest.txt
- %TEMP%\WERc57f.dir00\appcompat.txt
- %TEMP%\esentutl.exe
- %APPDATA%\mstsc.exe
- %APPDATA%\Microsoft\esentutl.exe
- %WINDIR%\system\logman.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
