Trojan.Encoder.10114

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'Scanner' = '%APPDATA%\trust64.exe'

Infects the following executable files:

C:\Far2\Plugins\arclite\wt+2vFWDYQS7r1gGljuVcw.[mia.kokers@aol.com]
C:\Far2\Plugins\arclite\XL8BwEB0kXqPBobGC-QyRg.[mia.kokers@aol.com]
C:\Far2\Plugins\arclite\1WaeYD+MUR2UBYX3SeGoPw.[mia.kokers@aol.com]
C:\Far2\Plugins\arclite\QlZ0KJlbWfWd-dAgk8chug.[mia.kokers@aol.com]
C:\Far2\Plugins\arclite\rIVE3bTEWNZgWpvkU25Z20.[mia.kokers@aol.com]

Malicious functions:

Creates and executes the following:

'%APPDATA%\trust64.exe'

Executes the following:

'<SYSTEM32>\mshta.exe' "javascript:o=new ActiveXObject('WScript.Shell');setInterval(function(){try{o.RegWrite('HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce\\Scanner','C:\\DOCUME~1\\%USERNAME%\\APPLIC~1...
'<SYSTEM32>\mshta.exe' "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('C:\\bf32d3b0\\<File name>.exe');close()}catch(e){}},10);"

Modifies file system:

Creates the following files:

C:\Far2\Plugins\FTP\How To Recover Encrypted Files.hta
C:\Far2\Plugins\FileCase\How To Recover Encrypted Files.hta
C:\Far2\Plugins\FarCmds\How To Recover Encrypted Files.hta
C:\Far2\Plugins\MacroView\How To Recover Encrypted Files.hta
C:\Far2\Plugins\HlfViewer\How To Recover Encrypted Files.hta
C:\Far2\Plugins\FTP\lib\How To Recover Encrypted Files.hta
C:\Far2\Plugins\EMenu\How To Recover Encrypted Files.hta
C:\Far2\Plugins\EditCase\How To Recover Encrypted Files.hta
C:\Far2\Plugins\DrawLine\How To Recover Encrypted Files.hta
C:\Far2\Plugins\ExtSearch\sources\RegExp\How To Recover Encrypted Files.hta
C:\Far2\Plugins\ExtSearch\sources\How To Recover Encrypted Files.hta
C:\Far2\Plugins\ExtSearch\doc\How To Recover Encrypted Files.hta
<STUBS_DIR>\kb_cli\How To Recover Encrypted Files.hta
<STUBS_DIR>\GVOnline\How To Recover Encrypted Files.hta
<STUBS_DIR>\el_cli\How To Recover Encrypted Files.hta
<STUBS_DIR>\How To Recover Encrypted Files.hta
<STUBS_DIR>\lin\How To Recover Encrypted Files.hta
<STUBS_DIR>\l2\How To Recover Encrypted Files.hta
C:\Far2\Plugins\TmpPanel\How To Recover Encrypted Files.hta
C:\Far2\Plugins\ProcList\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Network\How To Recover Encrypted Files.hta
<STUBS_DIR>\cbmain\How To Recover Encrypted Files.hta
C:\Far2\PluginSDK\Headers.pas\How To Recover Encrypted Files.hta
C:\Far2\PluginSDK\Headers.c\How To Recover Encrypted Files.hta
C:\Documents and Settings\Default User\How To Recover Encrypted Files.hta
C:\Documents and Settings\Default User\Local Settings\<INETFILES>\Content.IE5\How To Recover Encrypted Files.hta
C:\Documents and Settings\Default User\Local Settings\History\History.IE5\How To Recover Encrypted Files.hta
C:\Far2\Documentation\eng\How To Recover Encrypted Files.hta
C:\Far2\Addons\How To Recover Encrypted Files.hta
C:\Documents and Settings\Default User\Templates\How To Recover Encrypted Files.hta
%HOMEPATH%\Favorites\How To Recover Encrypted Files.hta
%HOMEPATH%\Favorites\Links\How To Recover Encrypted Files.hta
%APPDATA%\trust64.exe
C:\Documents and Settings\Default User\Cookies\How To Recover Encrypted Files.hta
%HOMEPATH%\Templates\How To Recover Encrypted Files.hta
%HOMEPATH%\Local Settings\History\History.IE5\MSHist012011111020111111\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Colorer\hrc\auto\types\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Colorer\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Brackets\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Compare\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Colorer\hrd\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Colorer\hrc\How To Recover Encrypted Files.hta
C:\Far2\Plugins\7-Zip\How To Recover Encrypted Files.hta
C:\Far2\How To Recover Encrypted Files.hta
C:\Far2\Documentation\rus\How To Recover Encrypted Files.hta
C:\Far2\Plugins\AutoWrap\How To Recover Encrypted Files.hta
C:\Far2\Plugins\arclite\How To Recover Encrypted Files.hta
C:\Far2\Plugins\Align\How To Recover Encrypted Files.hta