Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '%WINDIR%\InstallDir\Server.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '%WINDIR%\InstallDir\Server.exe'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}] 'StubPath' = '%WINDIR%\InstallDir\Server.exe restart'
Malicious functions:
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system:
Creates the following files:
- %APPDATA%\Microsoft\Windows\((Mutex)).cfg
- %WINDIR%\InstallDir\Server.exe
- %APPDATA%\Microsoft\Windows\((Mutex)).dat
Sets the 'hidden' attribute to the following files:
- %APPDATA%\Microsoft\Windows\((Mutex)).cfg
- %APPDATA%\Microsoft\Windows\((Mutex)).dat
Network activity:
Connects to:
- 'localhost':1037
- 'fl###d.ddns.net':81
UDP:
- DNS ASK fl###d.ddns.net
Miscellaneous:
Executes the following:
- '<SYSTEM32>\svchost.exe'
- '%ProgramFiles%\Internet Explorer\IEXPLORE.EXE'
