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Win32.HLLW.Autoruner2.42400
Added to the Dr.Web virus database:
2018-07-23
Virus description added:
2018-07-23
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'b22f383fedf6d711ce6361c0f2d98c1e' = '%APPDATA%\Microsoft\'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 1' = '<LS_APPDATA>\Lime 1.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 2' = '%APPDATA%\Lime 2.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 3' = '%HOMEPATH%\My Documents\Lime 3.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Lime 4' = '%HOMEPATH%\My Documents\My Pictures\Lime 4.exe'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\eXplorer.url
Creates the following files on removable media:
<Drive name for removable media>:\.lime.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Modifies file system:
Creates the following files:
%TEMP%\ebe5tewn.0.cs
%TEMP%\ebe5tewn.cmdline
%TEMP%\ebe5tewn.out
%TEMP%\ebe5tewn.pdb
%TEMP%\CSC1.tmp
%TEMP%\RES2.tmp
%TEMP%\ebe5tewn.dll
%APPDATA%\<File name>.exe
C:\autorun.inf
<LS_APPDATA>\Lime 1.exe
%APPDATA%\Lime 2.exe
%HOMEPATH%\My Documents\Lime 3.exe
%HOMEPATH%\My Documents\My Pictures\Lime 4.exe
Sets the 'hidden' attribute to the following files:
C:\autorun.inf
<Drive name for removable media>:\.lime.exe
<LS_APPDATA>\Lime 1.exe
%APPDATA%\Lime 2.exe
%HOMEPATH%\My Documents\Lime 3.exe
%HOMEPATH%\My Documents\My Pictures\Lime 4.exe
Deletes the following files:
%TEMP%\RES2.tmp
%TEMP%\CSC1.tmp
%TEMP%\ebe5tewn.0.cs
%TEMP%\ebe5tewn.cmdline
%TEMP%\ebe5tewn.out
%TEMP%\ebe5tewn.pdb
%TEMP%\ebe5tewn.dll
Network activity:
Connects to:
'ch####ain.ddns.net':1987
UDP:
DNS ASK ch####ain.ddns.net
Miscellaneous:
Executes the following:
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\ebe5tewn.cmdline"
'%WINDIR%\Microsoft.NET\Framework\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\CSC1.tmp"
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