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Win32.HLLW.Autoruner3.5799

Added to the Dr.Web virus database: 2022-10-02

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /K'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /m'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /P'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /g'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /l'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /E'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /F'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /d'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /x'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /n'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /r'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /t'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /V'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /b'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /S'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /C'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /W'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /A'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'guoizel' = '%HOMEPATH%\guoizel.exe /Z'
Creates the following files on removable media
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\spib_pima.pdf.lnk
  • <Drive name for removable media>:\fil_20060629111052.pdf.lnk
  • <Drive name for removable media>:\lom602.pdf.lnk
  • <Drive name for removable media>:\background.png.lnk
  • <Drive name for removable media>:\block.png.lnk
  • <Drive name for removable media>:\bg_search_box.png.lnk
  • <Drive name for removable media>:\calibre.png.lnk
  • <Drive name for removable media>:\dissolveanother.png.lnk
  • <Drive name for removable media>:\flower_trans_matte.wmv.lnk
  • <Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.pdf.lnk
  • <Drive name for removable media>:\7790_preview.pdf.lnk
  • <Drive name for removable media>:\testwmv.wmv.lnk
  • <Drive name for removable media>:\productos.xls.lnk
  • <Drive name for removable media>:\fiche_inscription_2015.xls.lnk
  • <Drive name for removable media>:\excel_example.xls.lnk
  • <Drive name for removable media>:\contractualdeadlines.xls.lnk
  • <Drive name for removable media>:\subjectclassification.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>:\passport_pal.wmv.lnk
  • <Drive name for removable media>:\price030215.xls.lnk
  • <Drive name for removable media>:\bc01.pdf.lnk
  • <Drive name for removable media>:\10thingscondoms.pdf.lnk
  • <Drive name for removable media>:\dualectls.pdf.lnk
  • <Drive name for removable media>:\guoizel.exe
  • <Drive name for removable media>:\guoizelx.exe
  • <Drive name for removable media>:\join.avi.lnk
  • <Drive name for removable media>:\split.avi.lnk
  • <Drive name for removable media>:\toolbar.bmp.lnk
  • <Drive name for removable media>:\dashborder_144.bmp.lnk
  • <Drive name for removable media>:\dial.bmp.lnk
  • <Drive name for removable media>:\fi51.doc.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>:\khnt.ico
  • <Drive name for removable media>:\february_catalogue__2015.doc.lnk
  • <Drive name for removable media>:\508softwareandos.doc.lnk
  • <Drive name for removable media>:\4f0bf7ff71f28.jpg.lnk
  • <Drive name for removable media>:\210252809.jpg.lnk
  • <Drive name for removable media>:\168.jpg.lnk
  • <Drive name for removable media>:\1189.jpg.lnk
  • <Drive name for removable media>:\parnas_01.jpg.lnk
  • <Drive name for removable media>:\video.mp4.lnk
  • <Drive name for removable media>:\51.mp4.lnk
  • <Drive name for removable media>:\clip_1080_5sec_10mbps_h264.mp4.lnk
  • <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.mp4.lnk
  • <Drive name for removable media>:\lisp_success.doc.lnk
  • <Drive name for removable media>:\music.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%\guoizel.exe
Sets the 'hidden' attribute to the following files
  • %HOMEPATH%\guoizel.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\khnt.ico
  • <Drive name for removable media>:\guoizel.exe
  • <Drive name for removable media>:\guoizelx.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%\guoizel.exe'