Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{152P24XU-GV3T-RU55-8364-J637U86B5C4F}] 'StubPath' = '<SYSTEM32>\explo\explo.exe Restart'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = ''
Malicious functions:
Creates and executes the following:
- '<SYSTEM32>\explo\explo.exe'
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- %APPDATA%\%USERNAME%-wchelper.dll
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%8
- <SYSTEM32>\explo\explo.exe
- %TEMP%\%USERNAME%2.txt
- %APPDATA%\88E6680F\ak.tmp
Sets the 'hidden' attribute to the following files:
- %APPDATA%\%USERNAME%-wchelper.dll
Deletes the following files:
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%2.txt
Deletes itself.
Network activity:
Connects to:
- 'to###u.dynu.net':1120
UDP:
- DNS ASK to###u.dynu.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WINHELP' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''