Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kaoujab' = '%HOMEPATH%\kaoujab.exe /X'
Creates the following files on removable media:
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\kaoujab.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\kaoujabx.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
- %HOMEPATH%\kaoujab.exe
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\ctfmon.exe
- %WINDIR%\Explorer.EXE
a large number of user processes.
Modifies file system :
Creates the following files:
- C:\autorun.inf
- C:\dbxjgw.exe
- %HOMEPATH%\kaoujab.exe
- %TEMP%\beruut.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\kaoujabx.exe
- C:\autorun.inf
- C:\dbxjgw.exe
- %HOMEPATH%\kaoujab.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\kaoujab.exe
Deletes the following files:
- %TEMP%\beruut.exe
Network activity:
Connects to:
- 'ns#.##deconline.biz':8000
UDP:
- DNS ASK ns#.##deconline.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
