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Win32.HLLW.Autoruner2.52571

Added to the Dr.Web virus database: 2019-07-18

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /s'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /W'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /F'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /M'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /B'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /t'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /c'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /r'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /p'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /K'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mwhof' = '%HOMEPATH%\mwhof.exe /N'
Creates the following files on removable media
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
  • <Drive name for removable media>:\dualectls.exe
  • <Drive name for removable media>:\spib_pima.exe
  • <Drive name for removable media>:\lom602.exe
  • <Drive name for removable media>:\bc01.exe
  • <Drive name for removable media>:\calibre.exe
  • <Drive name for removable media>:\toolbar.exe
  • <Drive name for removable media>:\block.exe
  • <Drive name for removable media>:\bg_search_box.exe
  • <Drive name for removable media>:\subjectclassification.exe
  • <Drive name for removable media>:\calculatorworksheet.exe
  • <Drive name for removable media>:\fiche_inscription_2015.exe
  • <Drive name for removable media>:\secret.exe
  • <Drive name for removable media>:\sexy.exe
  • <Drive name for removable media>:\51.exe
  • <Drive name for removable media>:\video_1.exe
  • <Drive name for removable media>:\2.exe
  • <Drive name for removable media>:\4f0bf7ff71f28.exe
  • <Drive name for removable media>:\region-north-karelia.exe
  • <Drive name for removable media>:\delete.exe
  • <Drive name for removable media>:\000814251_video_01.exe
  • <Drive name for removable media>:\correct.exe
  • <Drive name for removable media>:\join.exe
  • <Drive name for removable media>:\dashborder_96.exe
  • <Drive name for removable media>:\coffee.exe
  • <Drive name for removable media>:\porn.exe
  • <Drive name for removable media>:\dissolveanother.exe
  • <Drive name for removable media>:\dial.exe
  • <Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
  • <Drive name for removable media>:\hanni_umami_chapter.exe
  • <Drive name for removable media>:\weeklysheet1215.exe
  • <Drive name for removable media>:\3.exe
  • <Drive name for removable media>:\13.exe
  • <Drive name for removable media>:\210252809.exe
  • <Drive name for removable media>:\mwhof.exe
  • <Drive name for removable media>:\dashborder_144.exe
  • <Drive name for removable media>:\passwords.exe
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%\mwhof.exe
Sets the 'hidden' attribute to the following files
  • %HOMEPATH%\mwhof.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\mwhof.exe
Network activity
Connects to
  • '255.255.255.255':8003
UDP
  • DNS ASK ns#.##ayer1352.com
  • DNS ASK ns#.##ayer1352.net
  • DNS ASK ns#.##ayer1352.org
Miscellaneous
Creates and executes the following
  • '%HOMEPATH%\mwhof.exe'

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