Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'b22f383fedf6d711ce6361c0f2d98c1e' = '%APPDATA%\Microsoft\'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 1' = '<LS_APPDATA>\Lime 1.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 2' = '%APPDATA%\Lime 2.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 3' = '%HOMEPATH%\My Documents\Lime 3.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 4' = '%HOMEPATH%\My Documents\My Pictures\Lime 4.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\eXplorer.url
Creates the following files on removable media:
- <Drive name for removable media>:\.lime.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Modifies file system:
Creates the following files:
- %TEMP%\ebe5tewn.0.cs
- %TEMP%\ebe5tewn.cmdline
- %TEMP%\ebe5tewn.out
- %TEMP%\ebe5tewn.pdb
- %TEMP%\CSC1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\ebe5tewn.dll
- %APPDATA%\<File name>.exe
- C:\autorun.inf
- <LS_APPDATA>\Lime 1.exe
- %APPDATA%\Lime 2.exe
- %HOMEPATH%\My Documents\Lime 3.exe
- %HOMEPATH%\My Documents\My Pictures\Lime 4.exe
Sets the 'hidden' attribute to the following files:
- C:\autorun.inf
- <Drive name for removable media>:\.lime.exe
- <LS_APPDATA>\Lime 1.exe
- %APPDATA%\Lime 2.exe
- %HOMEPATH%\My Documents\Lime 3.exe
- %HOMEPATH%\My Documents\My Pictures\Lime 4.exe
Deletes the following files:
- %TEMP%\RES2.tmp
- %TEMP%\CSC1.tmp
- %TEMP%\ebe5tewn.0.cs
- %TEMP%\ebe5tewn.cmdline
- %TEMP%\ebe5tewn.out
- %TEMP%\ebe5tewn.pdb
- %TEMP%\ebe5tewn.dll
Network activity:
Connects to:
- 'ch####ain.ddns.net':1987
UDP:
- DNS ASK ch####ain.ddns.net
Miscellaneous:
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\ebe5tewn.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\CSC1.tmp"