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Win32.HLLW.Autoruner2.52501

Added to the Dr.Web virus database: 2019-07-17

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'paacoi' = '%HOMEPATH%\paacoi.exe /O'
Creates the following files on removable media
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\fil_20060629111052.exe
  • <Drive name for removable media>:\ff_ot_user_guide.exe
  • <Drive name for removable media>:\2015-02-patients-topic-work-related-asthma-jobs.exe
  • <Drive name for removable media>:\bc01.exe
  • <Drive name for removable media>:\asm.exe
  • <Drive name for removable media>:\breakpoint.exe
  • <Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
  • <Drive name for removable media>:\spib_pima.exe
  • <Drive name for removable media>:\cleanlyrics.exe
  • <Drive name for removable media>:\dissolveanother.exe
  • <Drive name for removable media>:\flower_trans_matte.exe
  • <Drive name for removable media>:\excel_example.exe
  • <Drive name for removable media>:\productos.exe
  • <Drive name for removable media>:\fiche_inscription_2015.exe
  • <Drive name for removable media>:\secret.exe
  • <Drive name for removable media>:\block.exe
  • <Drive name for removable media>:\calibre.exe
  • <Drive name for removable media>:\video_1.exe
  • <Drive name for removable media>:\clip_480_5sec_6mbps_h264.exe
  • <Drive name for removable media>:\clip_1080_5sec_10mbps_h264.exe
  • <Drive name for removable media>:\000814251_video_01.exe
  • <Drive name for removable media>:\archer.exe
  • <Drive name for removable media>:\dial.exe
  • <Drive name for removable media>:\dashborder_120.exe
  • <Drive name for removable media>:\dashborder_96.exe
  • <Drive name for removable media>:\dashborder_144.exe
  • <Drive name for removable media>:\february_catalogue__2015.exe
  • <Drive name for removable media>:\paacoi.exe
  • <Drive name for removable media>:\weeklysheet1215.exe
  • <Drive name for removable media>:\hanni_umami_chapter.exe
  • <Drive name for removable media>:\13.exe
  • <Drive name for removable media>:\168.exe
  • <Drive name for removable media>:\3.exe
  • <Drive name for removable media>:\pushkin.exe
  • <Drive name for removable media>:\1189.exe
  • <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.exe
  • <Drive name for removable media>:\applicantform_en.exe
  • <Drive name for removable media>:\sexy.exe
  • <Drive name for removable media>:\porn.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%\paacoi.exe
Sets the 'hidden' attribute to the following files
  • %HOMEPATH%\paacoi.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\paacoi.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%\paacoi.exe'

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