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Win32.HLLW.Autoruner.64322
Added to the Dr.Web virus database:
2011-10-20
Virus description added:
2020-05-18
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKLM>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Audio Driver' = '%APPDATA%\audiohd.exe'
[<HKLM>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows-Network Component' = '<SYSTEM32>\WUDHosts.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Audio Driver' = '%APPDATA%\audiohd.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows-Network Component' = '<SYSTEM32>\WUDHosts.exe'
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
Executes the following
'<SYSTEM32>\netsh.exe' firewall add allowedprogram <Full path to file> http-bot ENABLE
'<SYSTEM32>\netsh.exe' firewall add allowedprogram %APPDATA%\audiohd.exe http-bot ENABLE
Modifies file system
Creates the following files
%APPDATA%\audiohd.exe
<SYSTEM32>\wudhosts.exe
Sets the 'hidden' attribute to the following files
%APPDATA%\audiohd.exe
<SYSTEM32>\wudhosts.exe
Miscellaneous
Creates and executes the following
'%APPDATA%\audiohd.exe'
'<SYSTEM32>\wudhosts.exe'
'<SYSTEM32>\cmd.exe' /C netsh firewall add allowedprogram <Full path to file> http-bot ENABLE' (with hidden window)
'<SYSTEM32>\cmd.exe' /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Audio Driver" /t REG_SZ /d "%APPDATA%\audiohd.exe" /f' (with hidden window)
'<SYSTEM32>\cmd.exe' /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows-Network Component" /t REG_SZ /d "<SYSTEM32>\WUDHosts.exe" /f' (with hidden window)
'<SYSTEM32>\cmd.exe' /C reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Audio Driver" /t REG_SZ /d "%APPDATA%\audiohd.exe" /f' (with hidden window)
'<SYSTEM32>\cmd.exe' /C reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows-Network Component" /t REG_SZ /d "<SYSTEM32>\WUDHosts.exe" /f' (with hidden window)
'%APPDATA%\audiohd.exe' ' (with hidden window)
'<SYSTEM32>\wudhosts.exe' ' (with hidden window)
'<SYSTEM32>\cmd.exe' /C netsh firewall add allowedprogram %APPDATA%\audiohd.exe http-bot ENABLE' (with hidden window)
Executes the following
'<SYSTEM32>\cmd.exe' /C netsh firewall add allowedprogram <Full path to file> http-bot ENABLE
'<SYSTEM32>\cmd.exe' /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Audio Driver" /t REG_SZ /d "%APPDATA%\audiohd.exe" /f
'<SYSTEM32>\cmd.exe' /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows-Network Component" /t REG_SZ /d "<SYSTEM32>\WUDHosts.exe" /f
'<SYSTEM32>\reg.exe' add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Audio Driver" /t REG_SZ /d "%APPDATA%\audiohd.exe" /f
'<SYSTEM32>\cmd.exe' /C reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Audio Driver" /t REG_SZ /d "%APPDATA%\audiohd.exe" /f
'<SYSTEM32>\reg.exe' add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows-Network Component" /t REG_SZ /d "<SYSTEM32>\WUDHosts.exe" /f
'<SYSTEM32>\cmd.exe' /C reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows-Network Component" /t REG_SZ /d "<SYSTEM32>\WUDHosts.exe" /f
'<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Audio Driver" /t REG_SZ /d "%APPDATA%\audiohd.exe" /f
'<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows-Network Component" /t REG_SZ /d "<SYSTEM32>\WUDHosts.exe" /f
'<SYSTEM32>\cmd.exe' /C netsh firewall add allowedprogram %APPDATA%\audiohd.exe http-bot ENABLE
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