Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'dskchk' = '<Full path to virus>'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\VolumeInform\chk1.tmp.exe
Malicious functions:
Executes the following:
- %WINDIR%\regedit.exe /s %TEMP%\rtf2.tmp
Modifies file system :
Creates the following files:
- %TEMP%\rtf2.tmp
- %HOMEPATH%\dlst.dat
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\VolumeInform\chk1.tmp.exe
Network activity:
Connects to:
- 'cl###back.in':9091
UDP:
- DNS ASK cl###back.in
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'RegEdit_RegEdit' WindowName: ''