Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{H8I12RB03-AB-B70-7-11d2-9CBD-0O00FS7AH6-9E2121BHLOL}] 'stubpath' = ''
Creates or modifies the following files:
- %WINDIR%\Tasks\Readme.bat
- %WINDIR%\Tasks\taskeng.vbs
- %WINDIR%\Tasks\taskeng.exe
Creates the following files on removable media:
- <Drive name for removable media>:\recycle.{S-1-5-21-823518204-2000478354-1177238915-500}\usbdriver.com
- <Drive name for removable media>:\AUTORUN.INF
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- file extensions
Creates and executes the following:
- %WINDIR%\Tasks\taskeng.exe
Executes the following:
- <SYSTEM32>\ipconfig.exe
- <SYSTEM32>\cmd.exe /c c:\del.bat
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system :
Creates the following files:
- %TEMP%\z2hXyq0XNI.pif
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\list[1].txt
- C:\del.bat
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\AUTORUN.INF
- %WINDIR%\Tasks\taskeng.exe
Deletes itself.
Network activity:
Connects to:
- 'localhost':1043
- 'fi##.#ontexist.com':80
- '<Private IP address>':80
- '<Private IP address>':445
- '<Private IP address>':139
TCP:
HTTP GET requests:
- fi##.#ontexist.com/list.txt
UDP:
- DNS ASK fi##.#ontexist.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'YahooBuddyMain' WindowName: ''