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Win32.HLLW.Autoruner2.62397

Added to the Dr.Web virus database: 2019-09-20

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'kuojek' = '%HOMEPATH%\kuojek.exe /p'
Creates the following files on removable media
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\rcxe.tmp
  • <Drive name for removable media>:\fi51.exe
  • <Drive name for removable media>:\rcxd.tmp
  • <Drive name for removable media>:\rcxc.tmp
  • <Drive name for removable media>:\rcxb.tmp
  • <Drive name for removable media>:\ovp25012015.exe
  • <Drive name for removable media>:\rcxa.tmp
  • <Drive name for removable media>:\coffee.exe
  • <Drive name for removable media>:\rcx9.tmp
  • <Drive name for removable media>:\dialmap.exe
  • <Drive name for removable media>:\rcx8.tmp
  • <Drive name for removable media>:\toolbar.exe
  • <Drive name for removable media>:\rcx7.tmp
  • <Drive name for removable media>:\dashborder_144.exe
  • <Drive name for removable media>:\rcx6.tmp
  • <Drive name for removable media>:\dashborder_192.exe
  • <Drive name for removable media>:\rcx5.tmp
  • <Drive name for removable media>:\dial.exe
  • <Drive name for removable media>:\rcx4.tmp
  • <Drive name for removable media>:\rcx3.tmp
  • <Drive name for removable media>:\join.exe
  • <Drive name for removable media>:\rcx2.tmp
  • <Drive name for removable media>:\rcx1.tmp
  • <Drive name for removable media>:\correct.exe
  • <Drive name for removable media>:\kuojek.exe
  • <Drive name for removable media>:\rcxf.tmp
  • <Drive name for removable media>:\rcx10.tmp
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Modifies file system
Creates the following files
  • %HOMEPATH%\kuojek.exe
Sets the 'hidden' attribute to the following files
  • %HOMEPATH%\kuojek.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files
  • <Drive name for removable media>:\correct.exe
  • <Drive name for removable media>:\join.exe
  • <Drive name for removable media>:\dial.exe
  • <Drive name for removable media>:\dashborder_192.exe
  • <Drive name for removable media>:\dashborder_144.exe
  • <Drive name for removable media>:\toolbar.exe
  • <Drive name for removable media>:\dialmap.exe
  • <Drive name for removable media>:\coffee.exe
  • <Drive name for removable media>:\ovp25012015.exe
  • <Drive name for removable media>:\fi51.exe
Substitutes the following files
  • <Drive name for removable media>:\correct.exe
  • <Drive name for removable media>:\join.exe
  • <Drive name for removable media>:\dial.exe
  • <Drive name for removable media>:\dashborder_192.exe
  • <Drive name for removable media>:\dashborder_144.exe
  • <Drive name for removable media>:\toolbar.exe
  • <Drive name for removable media>:\dialmap.exe
  • <Drive name for removable media>:\coffee.exe
  • <Drive name for removable media>:\ovp25012015.exe
  • <Drive name for removable media>:\fi51.exe
Network activity
Connects to
  • '255.255.255.255':8000
UDP
  • DNS ASK ns#.##ayer1352.com
  • DNS ASK ns#.##ayer1352.net
  • DNS ASK ns#.##ayer1352.org
Miscellaneous
Creates and executes the following
  • '%HOMEPATH%\kuojek.exe'