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Trojan.MulDrop9.52981

Added to the Dr.Web virus database: 2019-08-12

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %APPDATA%\internet explorer.exe
Sets the 'hidden' attribute to the following files
  • <Full path to file>
  • %APPDATA%\internet explorer.exe
Moves the following files
  • from %APPDATA%\microsoft\internet explorer\quick launch\google chrome.lnk to %APPDATA%\random\optional\google chrome.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\icq.lnk to %APPDATA%\random\optional\icq.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\launch internet explorer browser.lnk to %APPDATA%\random\optional\launch internet explorer browser.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\microsoft office outlook.lnk to %APPDATA%\random\optional\microsoft office outlook.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\mozilla firefox.lnk to %APPDATA%\random\optional\mozilla firefox.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\mozilla thunderbird.lnk to %APPDATA%\random\optional\mozilla thunderbird.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\opera.lnk to %APPDATA%\random\optional\opera.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\qip 2012.lnk to %APPDATA%\random\optional\qip 2012.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\telegram.lnk to %APPDATA%\random\optional\telegram.lnk
  • from %APPDATA%\microsoft\internet explorer\quick launch\windows media player.lnk to %APPDATA%\random\optional\windows media player.lnk
  • from %HOMEPATH%\desktop\icq.lnk to %APPDATA%\random\default\icq.lnk
  • from %HOMEPATH%\desktop\pidgin.lnk to %APPDATA%\random\default\pidgin.lnk
  • from %HOMEPATH%\desktop\qip 2012.lnk to %APPDATA%\random\default\qip 2012.lnk
  • from %HOMEPATH%\desktop\telegram.lnk to %APPDATA%\random\default\telegram.lnk
Network activity
UDP
  • DNS ASK mr#####t1335.ddns.net
Miscellaneous
Creates and executes the following
  • '%APPDATA%\internet explorer.exe'
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1C.tmp" "%TEMP%\vbc1B.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\c1ob9-yr.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1A.tmp" "%TEMP%\vbc19.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\z1yjf0mq.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES18.tmp" "%TEMP%\vbc17.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\tnlfyxya.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES16.tmp" "%TEMP%\vbc15.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\ifvxhyhp.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES14.tmp" "%TEMP%\vbc13.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\yhrt2qrj.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES12.tmp" "%TEMP%\vbc11.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\tqvpt43a.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES10.tmp" "%TEMP%\vbcF.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\ze1ye0wo.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESE.tmp" "%TEMP%\vbcD.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\etonqtjs.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESC.tmp" "%TEMP%\vbcB.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\khdqor-b.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESA.tmp" "%TEMP%\vbc9.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\0gri-dm1.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES8.tmp" "%TEMP%\vbc7.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\-5kyjhcj.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES6.tmp" "%TEMP%\vbc5.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\htgujoa2.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES4.tmp" "%TEMP%\vbc3.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\brlxe35q.cmdline"' (with hidden window)
  • '<SYSTEM32>\schtasks.exe' /create /sc minute /mo 1 /tn "internet explorer" /tr "%APPDATA%\internet explorer.exe"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\lwxhlha_.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\28hdauxp.cmdline"' (with hidden window)
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1E.tmp" "%TEMP%\vbc1D.tmp"' (with hidden window)
Executes the following
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\lwxhlha_.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1C.tmp" "%TEMP%\vbc1B.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\c1ob9-yr.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1A.tmp" "%TEMP%\vbc19.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\z1yjf0mq.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES18.tmp" "%TEMP%\vbc17.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\tnlfyxya.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES16.tmp" "%TEMP%\vbc15.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\ifvxhyhp.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES14.tmp" "%TEMP%\vbc13.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\yhrt2qrj.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES12.tmp" "%TEMP%\vbc11.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\tqvpt43a.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES10.tmp" "%TEMP%\vbcF.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\28hdauxp.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\ze1ye0wo.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\etonqtjs.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESC.tmp" "%TEMP%\vbcB.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\khdqor-b.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESA.tmp" "%TEMP%\vbc9.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\0gri-dm1.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES8.tmp" "%TEMP%\vbc7.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\-5kyjhcj.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES6.tmp" "%TEMP%\vbc5.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\htgujoa2.cmdline"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES4.tmp" "%TEMP%\vbc3.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\brlxe35q.cmdline"
  • '<SYSTEM32>\schtasks.exe' /create /sc minute /mo 1 /tn "internet explorer" /tr "%APPDATA%\internet explorer.exe"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESE.tmp" "%TEMP%\vbcD.tmp"
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1E.tmp" "%TEMP%\vbc1D.tmp"

Curing recommendations

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    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
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