Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Verificador do sistema' = 'c:\cssrs.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\cssrs.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
Creates and executes the following:
- C:\cssrs.exe verify
Executes the following:
- <SYSTEM32>\xcopy.exe /h/g/c/n "<Full path to virus>" "E:\cssrs.exe"
- <SYSTEM32>\attrib.exe -h -s -r E:\autorun.inf
- <SYSTEM32>\attrib.exe +h +s +r "c:\cssrs.exe"
- <SYSTEM32>\attrib.exe +h +s +r E:\autorun.inf
- <SYSTEM32>\attrib.exe -h -s -r c:\\autorun.inf
- <SYSTEM32>\attrib.exe +h +s +r "<Full path to virus>"
- <SYSTEM32>\xcopy.exe /h/g/c/n "<Full path to virus>" "c:\\cssrs.exe"
- <SYSTEM32>\attrib.exe +h +s +r c:\\autorun.inf
Modifies file system :
Creates the following files:
- C:\cssrs.exe
- C:\autorun.inf
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- C:\cssrs.exe
- <Full path to virus>
- C:\autorun.inf
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'MS_WINHELP' WindowName: ''
- ClassName: 'Tkey' WindowName: ''
- ClassName: 'Indicator' WindowName: ''