Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /J'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /h'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rjnob' = '%HOMEPATH%\rjnob.exe /A'
Creates the following files on removable media:
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\uUOm.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\rjnob.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\rjnobx.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:
- %HOMEPATH%\rjnob.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\rjnob.exe
- <Drive name for removable media>:\rjnobx.exe
- <Drive name for removable media>:\uUOm.ico
- %HOMEPATH%\rjnob.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Creates and executes the following:
- '%HOMEPATH%\rjnob.exe'