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Win32.HLLW.Autoruner3.2892

Added to the Dr.Web virus database: 2020-11-23

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'mfwuux' = '%HOMEPATH%\mfwuux.exe /t'
Creates the following files on removable media
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\february_catalogue__2015.exe
  • <Drive name for removable media>:\region-north-karelia.exe
  • <Drive name for removable media>:\3.exe
  • <Drive name for removable media>:\parnas_01.exe
  • <Drive name for removable media>:\168.exe
  • <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.exe
  • <Drive name for removable media>:\fil_20060629111052.exe
  • <Drive name for removable media>:\bg_search_box.exe
  • <Drive name for removable media>:\bc01.exe
  • <Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.exe
  • <Drive name for removable media>:\lom602.exe
  • <Drive name for removable media>:\10thingscondoms.exe
  • <Drive name for removable media>:\asm.exe
  • <Drive name for removable media>:\cleanlyrics.exe
  • <Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
  • <Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
  • <Drive name for removable media>:\applicantform_en.exe
  • <Drive name for removable media>:\default.exe
  • <Drive name for removable media>:\mfwuux.exe
  • <Drive name for removable media>:\archer.exe
  • <Drive name for removable media>:\000814251_video_01.exe
  • <Drive name for removable media>:\join.exe
  • <Drive name for removable media>:\delete.exe
  • <Drive name for removable media>:\dialmap.exe
  • <Drive name for removable media>:\dashborder_120.exe
  • <Drive name for removable media>:\fi51.exe
  • <Drive name for removable media>:\dashborder_96.exe
  • <Drive name for removable media>:\dashborder_144.exe
  • <Drive name for removable media>:\dial.exe
  • <Drive name for removable media>:\toolbar.exe
  • <Drive name for removable media>:\tileimage.exe
  • <Drive name for removable media>:\dashborder_192.exe
  • <Drive name for removable media>:\weeklysheet1215.exe
  • <Drive name for removable media>:\cbz.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%\mfwuux.exe
Sets the 'hidden' attribute to the following files
  • %HOMEPATH%\mfwuux.exe
  • <Drive name for removable media>:\autorun.inf
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%\mfwuux.exe'
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