Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{3C46566A-635E-7E37-78ED-9C492E35F1A0}] 'stubpath' = ''
Malicious functions:
Creates and executes the following:
- %TEMP%\server.exe
Executes the following:
- %WINDIR%\explorer.exe
Injects code into
the following user processes:
- msnmsgr.exe
Modifies file system :
Creates the following files:
- %PROGRAM_FILES%\Bifrost\server.exe
- %TEMP%\server.exe
Sets the 'hidden' attribute to the following files:
- %PROGRAM_FILES%\Bifrost\server.exe
Network activity:
Connects to:
- 'is#####net.no-ip.biz':81
- 'is#####net1.no-ip.biz':81
UDP:
- DNS ASK is#####net.no-ip.biz
- DNS ASK is#####net1.no-ip.biz
