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Win32.HLLW.Autoruner3.5544

Added to the Dr.Web virus database: 2022-09-18

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /F'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /B'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /L'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /C'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /x'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /a'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /M'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /Y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /g'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /S'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /w'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /v'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /K'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /N'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /D'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /O'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /p'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /R'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'coofiov' = '%HOMEPATH%\coofiov.exe /E'
Creates the following files on removable media
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\dissolveanother.png.lnk
  • <Drive name for removable media>:\asm.png.lnk
  • <Drive name for removable media>:\calibre.png.lnk
  • <Drive name for removable media>:\breakpoint.png.lnk
  • <Drive name for removable media>:\cbz.png.lnk
  • <Drive name for removable media>:\bg_search_box.png.lnk
  • <Drive name for removable media>:\flower_trans_matte.wmv.lnk
  • <Drive name for removable media>:\babyboymaintonotesbackground_pal.wmv.lnk
  • <Drive name for removable media>:\testwmv.wmv.lnk
  • <Drive name for removable media>:\508softwareandos.doc.lnk
  • <Drive name for removable media>:\price030215.xls.lnk
  • <Drive name for removable media>:\1sm_price.xls.lnk
  • <Drive name for removable media>:\calculatorworksheet.xls.lnk
  • <Drive name for removable media>:\subjectclassification.xls.lnk
  • <Drive name for removable media>:\productos.xls.lnk
  • <Drive name for removable media>:\fiche_inscription_2015.xls.lnk
  • <Drive name for removable media>:\new folder.lnk
  • <Drive name for removable media>:\passwords.lnk
  • <Drive name for removable media>:\documents.lnk
  • <Drive name for removable media>:\pictures.lnk
  • <Drive name for removable media>:\lom602.pdf.lnk
  • <Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.pdf.lnk
  • <Drive name for removable media>:\spib_pima.pdf.lnk
  • <Drive name for removable media>:\51.mp4.lnk
  • <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4.lnk
  • <Drive name for removable media>:\coofiov.exe
  • <Drive name for removable media>:\coofiovx.exe
  • <Drive name for removable media>:\delete.avi.lnk
  • <Drive name for removable media>:\correct.avi.lnk
  • <Drive name for removable media>:\000814251_video_01.avi.lnk
  • <Drive name for removable media>:\toolbar.bmp.lnk
  • <Drive name for removable media>:\default.bmp.lnk
  • <Drive name for removable media>:\dialmap.bmp.lnk
  • <Drive name for removable media>:\dial.bmp.lnk
  • <Drive name for removable media>:\music.lnk
  • <Drive name for removable media>:\excel_example.xls.lnk
  • <Drive name for removable media>:\dashborder_96.bmp.lnk
  • <Drive name for removable media>:\hanni_umami_chapter.doc.lnk
  • <Drive name for removable media>:\uep_form_786_bulletin_1726i602.doc.lnk
  • <Drive name for removable media>:\1189.jpg.lnk
  • <Drive name for removable media>:\13.jpg.lnk
  • <Drive name for removable media>:\210252809.jpg.lnk
  • <Drive name for removable media>:\parnas_01.jpg.lnk
  • <Drive name for removable media>:\pushkin.jpg.lnk
  • <Drive name for removable media>:\video_1.mp4.lnk
  • <Drive name for removable media>:\clip_480_5sec_6mbps_h264.mp4.lnk
  • <Drive name for removable media>:\jjd.ico
  • <Drive name for removable media>:\ovp25012015.doc.lnk
  • <Drive name for removable media>:\video.lnk
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%\coofiov.exe
Sets the 'hidden' attribute to the following files
  • %HOMEPATH%\coofiov.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\jjd.ico
  • <Drive name for removable media>:\coofiov.exe
  • <Drive name for removable media>:\coofiovx.exe
Network activity
Connects to
  • '255.255.255.255':8000
UDP
  • DNS ASK ns#.##ayer1532.com
  • DNS ASK ns#.##deoall.org
  • DNS ASK ns#.##deoall.net
Miscellaneous
Creates and executes the following
  • '%HOMEPATH%\coofiov.exe'

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