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Win32.HLLW.Facebook.2608
Added to the Dr.Web virus database:
2016-05-31
Virus description added:
2016-05-30
Technical Information
To ensure autorun and distribution:
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\wwad\parameters] 'servicedll' = '<SYSTEM32>\wad.dll'
[<HKLM>\SYSTEM\ControlSet001\Services\wwad] 'ImagePath' = '<SYSTEM32>\svchost.exe -k wwad'
[<HKLM>\SYSTEM\ControlSet001\Services\wwad] 'Start' = '00000002'
Malicious functions:
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add portopening tcp 8086 wad enable
'<SYSTEM32>\sc.exe' create "wwad" type= interact type= share start= auto binpath= "<SYSTEM32>\svchost.exe -k wwad"
'<SYSTEM32>\reg.exe' add "hklm\system\currentcontrolset\services\wwad\parameters" /v servicedll /t reg_expand_sz /d "<SYSTEM32>\wad.dll" /f
'<SYSTEM32>\rundll32.exe' "<SYSTEM32>\wad.dll",ServiceMain /install
'<SYSTEM32>\cmd.exe' /c "%TEMP%\\wad.bat"
'<SYSTEM32>\netsh.exe' firewall add allowedprogram name="wad" program="<SYSTEM32>\svchost.exe" mode=enable
Modifies file system:
Creates the following files:
%TEMP%\wad.bat
<SYSTEM32>\wad.dll
<DRIVERS>\wad.sys
Network activity:
Connects to:
'localhost':8086
'localhost':8085
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