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Win32.HLLW.BackDates.938

Added to the Dr.Web virus database: 2014-07-17

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /k'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /j'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /n'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /g'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /e'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /b'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /w'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /d'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /x'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /u'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /f'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /p'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /s'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /a'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /v'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /m'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /l'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'szvuod' = '%HOMEPATH%\szvuod.exe /c'
Creates the following files on removable media:
  • <Drive name for removable media>:\Naked.exe
  • <Drive name for removable media>:\Webcam.exe
  • <Drive name for removable media>:\Password.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\szvuod.exe
  • <Drive name for removable media>:\I love you.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Creates and executes the following:
  • '%HOMEPATH%\szvuod.exe'
Modifies file system :
Creates the following files:
  • %HOMEPATH%\c\1.exe
  • %HOMEPATH%\c\2.exe
  • %HOMEPATH%\c\RCXD.tmp
  • %HOMEPATH%\c\autorun.inf
  • %HOMEPATH%\RCXA.tmp
  • %HOMEPATH%\RCXB.tmp
  • %HOMEPATH%\RCXC.tmp
  • %HOMEPATH%\c\RCX10.tmp
  • %HOMEPATH%\c\RCX11.tmp
  • %HOMEPATH%\c\RCX12.tmp
  • %HOMEPATH%\c\4.exe
  • %HOMEPATH%\c\3.exe
  • %HOMEPATH%\c\RCXE.tmp
  • %HOMEPATH%\c\RCXF.tmp
  • %HOMEPATH%\3.exe
  • %HOMEPATH%\RCX2.tmp
  • %HOMEPATH%\RCX3.tmp
  • %HOMEPATH%\RCX1.tmp
  • %HOMEPATH%\szvuod.exe
  • %HOMEPATH%\1.exe
  • %HOMEPATH%\2.exe
  • %HOMEPATH%\RCX7.tmp
  • %HOMEPATH%\RCX8.tmp
  • %HOMEPATH%\RCX9.tmp
  • %HOMEPATH%\RCX6.tmp
  • %HOMEPATH%\4.exe
  • %HOMEPATH%\RCX4.tmp
  • %HOMEPATH%\RCX5.tmp
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\szvuod.exe
  • %HOMEPATH%\c\autorun.inf
  • %HOMEPATH%\szvuod.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %HOMEPATH%\c\4.exe
  • %HOMEPATH%\c\3.exe
  • %HOMEPATH%\c\1.exe
  • %HOMEPATH%\c\autorun.inf
  • %HOMEPATH%\c\2.exe
  • %HOMEPATH%\3.exe
  • %HOMEPATH%\2.exe
  • %HOMEPATH%\1.exe
  • %HOMEPATH%\4.exe
Moves the following files:
  • from %HOMEPATH%\RCXC.tmp to %HOMEPATH%\4.exe
  • from %HOMEPATH%\c\RCXD.tmp to %HOMEPATH%\c\2.exe
  • from %HOMEPATH%\RCXA.tmp to %HOMEPATH%\4.exe
  • from %HOMEPATH%\RCXB.tmp to %HOMEPATH%\4.exe
  • from %HOMEPATH%\c\RCXE.tmp to %HOMEPATH%\c\3.exe
  • from %HOMEPATH%\c\RCX11.tmp to %HOMEPATH%\c\4.exe
  • from %HOMEPATH%\c\RCX12.tmp to %HOMEPATH%\c\4.exe
  • from %HOMEPATH%\c\RCXF.tmp to %HOMEPATH%\c\3.exe
  • from %HOMEPATH%\c\RCX10.tmp to %HOMEPATH%\c\4.exe
  • from %HOMEPATH%\RCX3.tmp to %HOMEPATH%\3.exe
  • from %HOMEPATH%\RCX4.tmp to %HOMEPATH%\4.exe
  • from %HOMEPATH%\RCX1.tmp to %HOMEPATH%\2.exe
  • from %HOMEPATH%\RCX2.tmp to %HOMEPATH%\3.exe
  • from %HOMEPATH%\RCX5.tmp to %HOMEPATH%\4.exe
  • from %HOMEPATH%\RCX8.tmp to %HOMEPATH%\3.exe
  • from %HOMEPATH%\RCX9.tmp to %HOMEPATH%\3.exe
  • from %HOMEPATH%\RCX6.tmp to %HOMEPATH%\4.exe
  • from %HOMEPATH%\RCX7.tmp to %HOMEPATH%\2.exe
Network activity:
Connects to:
  • 'ns#.##ckdates2.net':7008
  • 'ns#.##ckdates3.net':7008
  • 'ns#.##ckdates8.com':7008
  • 'ns#.##ckdates17.com':7008
  • 'ns#.##ckdates4.com':7008
  • 'ns#.##ckdates1.net':7008
  • 'ns#.##ckdates9.com':7008
  • 'ns#.##ckdates1.com':7008
  • 'ns#.##ckdates5.com':7008
  • 'ns#.##ckdates10.com':7008
  • 'ns#.##ckdates2.com':7008
UDP:
  • DNS ASK ns#.##ckdates8.com
  • DNS ASK ns#.##ckdates2.net
  • DNS ASK ns#.##ckdates3.net
  • DNS ASK ns#.##ckdates16.com
  • DNS ASK ns#.##ckdates17.com
  • DNS ASK ns#.##ckdates4.com
  • DNS ASK ns#.##ckdates5.com
  • DNS ASK ns#.##ckdates9.com
  • DNS ASK ns#.##ckdates1.com
  • DNS ASK ns#.##ckdates1.net
  • DNS ASK ns#.##ckdates10.com
  • DNS ASK ns#.##ckdates2.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: '(null)'
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