Trojan.DownLoader12.32921

Добавлен в вирусную базу Dr.Web: 2015-02-26

Описание добавлено: 2015-02-26

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,%ALLUSERSPROFILE%\vesswIQA\AcIcUcAM.exe,'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'AcIcUcAM.exe' = '%ALLUSERSPROFILE%\vesswIQA\AcIcUcAM.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'jaQEcQMQ.exe' = '%HOMEPATH%\NIMMEwsg\jaQEcQMQ.exe'

Creates the following services:

[<HKLM>\SYSTEM\ControlSet001\Services\FkYQcQph] 'Start' = '00000002'

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files
file extensions

blocks the following features:

User Account Control (UAC)

Creates and executes the following:

'%ALLUSERSPROFILE%\lwQggIEM\nwAEcgMA.exe'
'%ALLUSERSPROFILE%\vesswIQA\AcIcUcAM.exe'
'%HOMEPATH%\NIMMEwsg\jaQEcQMQ.exe'

Executes the following:

'<SYSTEM32>\cmd.exe' /c ""%TEMP%\DwQcgMUk.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\FAMgMsYY.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\uoUUsoco.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\YqMososo.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\TWQYYIUw.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\mGwIwwsM.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\GGQQooEg.bat" "<Full path to virus>""
'<SYSTEM32>\reg.exe' add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /d 0 /t REG_DWORD /f
'<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v Hidden /t REG_DWORD /d 2
'<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v HideFileExt /t REG_DWORD /d 1
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\mgYgMwMA.bat" "<Full path to virus>""
'<SYSTEM32>\cscript.exe' %TEMP%\file.vbs
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\QIIQswcQ.bat" "<Full path to virus>""

Modifies file system :

Creates the following files:

<Current directory>\Woou.exe
C:\RCX10.tmp
%TEMP%\jwYMMoIE.bat
C:\RCXF.tmp
%TEMP%\mGwIwwsM.bat
<Current directory>\zIUM.ico
C:\RCX11.tmp
<Current directory>\FIIs.ico
<Current directory>\cYMy.exe
%TEMP%\TWQYYIUw.bat
<Current directory>\TkQc.ico
<Current directory>\gQUM.exe
<Current directory>\twIs.exe
<Current directory>\ckgo.exe
C:\RCXD.tmp
<Current directory>\NOQo.ico
C:\RCXC.tmp
%TEMP%\FAMgMsYY.bat
<Current directory>\YKgc.ico
%TEMP%\DwQcgMUk.bat
<Current directory>\rKQY.ico
%TEMP%\OIEAYEMA.bat
<Current directory>\bAcw.exe
%TEMP%\togEYcEo.bat
C:\RCXE.tmp
C:\RCX12.tmp
C:\RCX17.tmp
<Current directory>\Iegc.ico
<Current directory>\rggc.exe
C:\RCX16.tmp
<Current directory>\eEcg.ico
<Current directory>\qEYq.exe
C:\RCX19.tmp
<Current directory>\vqgc.ico
<Current directory>\OIoG.exe
C:\RCX18.tmp
<Current directory>\SKsE.ico
<Current directory>\dQAe.exe
<Current directory>\gkYg.exe
C:\RCX13.tmp
%TEMP%\YqMososo.bat
<Current directory>\jeIs.ico
<Current directory>\NGoA.ico
<Current directory>\YsYM.exe
%TEMP%\NuAsgEMk.bat
<Current directory>\QEwQ.exe
C:\RCX15.tmp
<Current directory>\Dasg.ico
<Current directory>\ZAAA.exe
C:\RCX14.tmp
<Current directory>\egIU.ico
%TEMP%\mgYgMwMA.bat
<Current directory>\fEEA.ico
<Current directory>\DwAO.exe
%TEMP%\oSUcYcwY.bat
<Current directory>\VIIq.exe
C:\RCX2.tmp
C:\RCX4.tmp
<Current directory>\HkQc.ico
<Current directory>\WMgm.exe
C:\RCX3.tmp
<Current directory>\YgoI.ico
<Current directory>\Vckm.exe
<Current directory>\vuMs.ico
%ALLUSERSPROFILE%\casg.txt
C:\Documents and Settings\LocalService\NIMMEwsg\jaQEcQMQ
%TEMP%\dcwEEgkU.bat
%HOMEPATH%\NIMMEwsg\jaQEcQMQ
%ALLUSERSPROFILE%\vesswIQA\AcIcUcAM
%ALLUSERSPROFILE%\lwQggIEM\nwAEcgMA.exe
%TEMP%\QIIQswcQ.bat
C:\RCX1.tmp
%TEMP%\file.vbs
<Current directory>\<Virus name>
<Current directory>\VysI.ico
<Current directory>\IwMi.exe
C:\RCX5.tmp
%TEMP%\qOckogEE.bat
C:\RCXA.tmp
<Current directory>\RIEo.ico
%TEMP%\GGQQooEg.bat
<Current directory>\YWsA.ico
<Current directory>\dsoa.exe
%TEMP%\BEksIYQY.bat
<Current directory>\sSEE.ico
<Current directory>\nMES.exe
%TEMP%\uoUUsoco.bat
<Current directory>\dUwC.exe
C:\RCXB.tmp
C:\RCX9.tmp
<Current directory>\gIwA.ico
<Current directory>\SgUA.exe
C:\RCX7.tmp
<Current directory>\VQoc.ico
<Current directory>\vcwY.exe
C:\RCX6.tmp
C:\RCX8.tmp
<Current directory>\bgYs.ico
<Current directory>\NooO.exe
%TEMP%\yWoIkoMc.bat
<Current directory>\sSkQ.ico
<Current directory>\SoQc.exe

Deletes the following files:

<Current directory>\gQUM.exe
<Current directory>\zIUM.ico
<Current directory>\Woou.exe
<Current directory>\TkQc.ico
%TEMP%\NuAsgEMk.bat
<Current directory>\FIIs.ico
<Current directory>\cYMy.exe
%TEMP%\jwYMMoIE.bat
<Current directory>\bAcw.exe
%TEMP%\togEYcEo.bat
<Current directory>\YKgc.ico
<Current directory>\NOQo.ico
<Current directory>\rKQY.ico
<Current directory>\twIs.exe
%TEMP%\OIEAYEMA.bat
<Current directory>\rggc.exe
<Current directory>\eEcg.ico
<Current directory>\qEYq.exe
<Current directory>\Iegc.ico
<Current directory>\vqgc.ico
<Current directory>\SKsE.ico
<Current directory>\dQAe.exe
<Current directory>\Dasg.ico
<Current directory>\ZAAA.exe
<Current directory>\NGoA.ico
<Current directory>\YsYM.exe
<Current directory>\jeIs.ico
<Current directory>\gkYg.exe
<Current directory>\egIU.ico
<Current directory>\QEwQ.exe
<Current directory>\WMgm.exe
<Current directory>\YgoI.ico
<Current directory>\Vckm.exe
<Current directory>\HkQc.ico
<Current directory>\SgUA.exe
<Current directory>\VQoc.ico
<Current directory>\vcwY.exe
<Current directory>\fEEA.ico
<Current directory>\VysI.ico
<Current directory>\IwMi.exe
%TEMP%\dcwEEgkU.bat
%TEMP%\oSUcYcwY.bat
<Current directory>\DwAO.exe
<Current directory>\vuMs.ico
<Current directory>\VIIq.exe
<Current directory>\RIEo.ico
<Current directory>\dUwC.exe
<Current directory>\YWsA.ico
%TEMP%\BEksIYQY.bat
<Current directory>\ckgo.exe
<Current directory>\sSEE.ico
<Current directory>\nMES.exe
<Current directory>\dsoa.exe
<Current directory>\SoQc.exe
%TEMP%\yWoIkoMc.bat
<Current directory>\gIwA.ico
<Current directory>\sSkQ.ico
%TEMP%\qOckogEE.bat
<Current directory>\bgYs.ico
<Current directory>\NooO.exe

Moves the following files:

from C:\RCX11.tmp to <Current directory>\gQUM.exe
from C:\RCX12.tmp to <Current directory>\cYMy.exe
from C:\RCX13.tmp to <Current directory>\YsYM.exe
from C:\RCXE.tmp to <Current directory>\bAcw.exe
from C:\RCXF.tmp to <Current directory>\twIs.exe
from C:\RCX10.tmp to <Current directory>\Woou.exe
from C:\RCX17.tmp to <Current directory>\qEYq.exe
from C:\RCX18.tmp to <Current directory>\rggc.exe
from C:\RCX19.tmp to <Current directory>\dQAe.exe
from C:\RCX14.tmp to <Current directory>\ZAAA.exe
from C:\RCX15.tmp to <Current directory>\QEwQ.exe
from C:\RCX16.tmp to <Current directory>\gkYg.exe
from C:\RCXD.tmp to <Current directory>\ckgo.exe
from C:\RCX4.tmp to <Current directory>\Vckm.exe
from C:\RCX5.tmp to <Current directory>\WMgm.exe
from C:\RCX6.tmp to <Current directory>\vcwY.exe
from C:\RCX1.tmp to <Current directory>\IwMi.exe
from C:\RCX2.tmp to <Current directory>\VIIq.exe
from C:\RCX3.tmp to <Current directory>\DwAO.exe
from C:\RCXA.tmp to <Current directory>\dsoa.exe
from C:\RCXB.tmp to <Current directory>\dUwC.exe
from C:\RCXC.tmp to <Current directory>\nMES.exe
from C:\RCX7.tmp to <Current directory>\SgUA.exe
from C:\RCX8.tmp to <Current directory>\SoQc.exe
from C:\RCX9.tmp to <Current directory>\NooO.exe

Deletes itself.

Network activity:

Connects to:

'74.##5.232.51':80

TCP:

HTTP GET requests:

74.##5.232.51/

UDP:

DNS ASK google.com

Miscellaneous:

Searches for the following windows:

ClassName: '' WindowName: 'jaQEcQMQ.exe'
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: '' WindowName: 'Microsoft Windows'
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: 'AcIcUcAM.exe'

Технологии

Термины

Обучение и просвещение

Мифы

Technical Information

Рекомендации по лечению

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