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Win32.HLLW.Autoruner2.25161

Added to the Dr.Web virus database: 2016-09-06

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'RegSrvc' = '<Full path to virus>'
Creates the following files on removable media:
  • <Drive name for removable media>:\Start.exe
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Executes the following:
  • '<SYSTEM32>\reg.exe' ADD hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v SuperHidden /t REG_DWORD /d 0 /f
  • '<SYSTEM32>\reg.exe' ADD hkcu\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v ShowSuperHidden /t REG_DWORD /d 0 /f
  • '<SYSTEM32>\attrib.exe' +r +h +s E:\autorun.inf
  • '<SYSTEM32>\attrib.exe' +r +h +s E:\Start.exe
Modifies file system:
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\Start.exe
  • <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
  • '74.##5.232.51':80
TCP:
HTTP POST requests:
  • http://google.com/ via 74.##5.232.51
UDP:
  • DNS ASK google.com