Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'crss.exe' = '"%APPDATA%\crss.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'crss.exe' = '"%APPDATA%\crss.exe"'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\{%USERNAME%-#wuperr#}\crss.exe
Malicious functions:
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies file system :
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\{%USERNAME%-#wuperr#}\crss.exe
Moves itself:
- from <Full path to virus> to %APPDATA%\crss.exe
Network activity:
Connects to:
- 'su#####ffles.zapto.org':6999
UDP:
- DNS ASK su#####ffles.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
