Win32.HLLW.Autoruner2.31024
Added to the Dr.Web virus database:
2017-12-27
Virus description added:
2017-12-26
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '7760f0a263e08f76469de29974d63a9d' = '"<Full path to file>" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '7760f0a263e08f76469de29974d63a9d' = '"<Full path to file>" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\7760f0a263e08f76469de29974d63a9d.exe
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\7760f0a263e08f76469de29974d63a9d.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to file>' = '<Full path to file>:*:Enabled:<File name>.exe'
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>" "<File name>.exe" ENABLE
Modifies file system:
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\7760f0a263e08f76469de29974d63a9d.exe
Network activity:
Connects to:
- 'pr#####yfa7.ddns.net':5553
UDP:
- DNS ASK pr#####yfa7.ddns.net
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