Trojan.DownLoader11.45399

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'aeEkEEcE.exe' = '%ALLUSERSPROFILE%\BWogoUMg\aeEkEEcE.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'pUccUkoM.exe' = '%HOMEPATH%\fCkYUMIQ\pUccUkoM.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%\BWogoUMg\aeEkEEcE.exe'
'%HOMEPATH%\fCkYUMIQ\pUccUkoM.exe'

Executes the following:

'<SYSTEM32>\cmd.exe' /c ""%TEMP%\QGoQIkck.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\nmsssAsM.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\CyocAQww.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\DuIcAAkU.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\bQMIEooU.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\zSQUQMQA.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\eOkYoQog.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\gyYMIoYs.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\ZsoUYkgM.bat" "<Full path to virus>""
'<SYSTEM32>\reg.exe' %TEMP%\file.vbs
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\FUEkcEsk.bat" "<Full path to virus>""
'<SYSTEM32>\reg.exe' /c ""%TEMP%\RUckggsg.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\wGoAQAsk.bat" "<Full path to virus>""
'<SYSTEM32>\reg.exe'
'<SYSTEM32>\reg.exe' /c "<Current directory>\<Virus name>"
'<SYSTEM32>\cscript.exe'
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\EkIIIQUU.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\raYkEwks.bat" "<Full path to virus>""
'<SYSTEM32>\cscript.exe' %TEMP%\file.vbs
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\howcQsMY.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\ocsEAIgA.bat" "<Full path to virus>""
'<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%\TkUwoEkE.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>\cmd.exe' /c ""%TEMP%\koIIYoow.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\OwcoEggQ.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\xssIUwMo.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\imwUsggo.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\EuggwIkg.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\dQcUkkYM.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\TKwYIIcw.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\ymAAsYcc.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\RsggIEYM.bat" "<Full path to virus>""

Injects code into

the following system processes:

<SYSTEM32>\cmd.exe
<SYSTEM32>\cscript.exe
<SYSTEM32>\reg.exe

Hides the following processes:

<SYSTEM32>\cmd.exe

Modifies file system :

Creates the following files:

%TEMP%\tKkscYQI.bat
%TEMP%\nmsssAsM.bat
%TEMP%\eIYcssMw.bat
%TEMP%\QGoQIkck.bat
<Current directory>\Awoq.exe
%TEMP%\eOkYoQog.bat
%TEMP%\TqwMkEUw.bat
C:\RCX10.tmp
%TEMP%\qQEMwUog.bat
%TEMP%\DuIcAAkU.bat
%TEMP%\ZsoUYkgM.bat
%TEMP%\CyocAQww.bat
<Current directory>\EEcK.exe
<Current directory>\jioo.ico
%TEMP%\PowoMQww.bat
C:\RCX11.tmp
<Current directory>\xuwg.ico
%TEMP%\iiYcAEAA.bat
%TEMP%\KuQgEkos.bat
%TEMP%\zSQUQMQA.bat
%TEMP%\imwUsggo.bat
<Current directory>\VoAA.ico
%TEMP%\EuggwIkg.bat
C:\RCXE.tmp
<Current directory>\rUME.exe
%TEMP%\bQMIEooU.bat
%TEMP%\uScwwIok.bat
%TEMP%\HSQowMco.bat
%TEMP%\gyYMIoYs.bat
<Current directory>\MUMC.exe
<Current directory>\yioM.ico
%TEMP%\JoUkgcMk.bat
C:\RCXF.tmp
<Current directory>\swYk.ico
C:\RCX16.tmp
<Current directory>\YMcq.exe
%TEMP%\oqcUEIUY.bat
%TEMP%\RUckggsg.bat
<Current directory>\rwYW.exe
<Current directory>\sWQw.ico
<Current directory>\gwIA.ico
C:\RCX15.tmp
%TEMP%\XEAIswMw.bat
<Current directory>\cMUA.ico
C:\RCX18.tmp
<Current directory>\koEY.exe
<Current directory>\tIYi.exe
<Current directory>\sYok.ico
%TEMP%\kWQcAggI.bat
C:\RCX17.tmp
%TEMP%\qQcoUIcU.bat
%TEMP%\EkIIIQUU.bat
%TEMP%\cMYUwAcw.bat
<Current directory>\WSEo.ico
%TEMP%\osEkAMIQ.bat
%TEMP%\EWEwEkwM.bat
<Current directory>\REwa.exe
%TEMP%\jocIgoMw.bat
C:\RCX12.tmp
<Current directory>\GIkC.exe
<Current directory>\RCow.ico
%TEMP%\wGoAQAsk.bat
C:\RCX14.tmp
C:\RCX13.tmp
<Current directory>\WkUw.exe
%TEMP%\DKkQEgww.bat
%TEMP%\FUEkcEsk.bat
C:\RCX3.tmp
<Current directory>\KYMi.exe
<Current directory>\RUEc.ico
%TEMP%\koIIYoow.bat
C:\RCX2.tmp
<Current directory>\TgoC.exe
<Current directory>\wQsQ.ico
%TEMP%\NSMYoEUU.bat
<Current directory>\QAEk.exe
<Current directory>\JsMI.ico
<Current directory>\ZWUc.ico
C:\RCX5.tmp
C:\RCX4.tmp
<Current directory>\LIoA.exe
%TEMP%\TKwYIIcw.bat
%TEMP%\KgAokMYw.bat
<Current directory>\HaQg.ico
%TEMP%\file.vbs
%TEMP%\TkUwoEkE.bat
%TEMP%\raYkEwks.bat
%TEMP%\bGgsUYMA.bat
%ALLUSERSPROFILE%\lwQggIEM\nwAEcgMA.exe
<Current directory>\<Virus name>
%TEMP%\hUUUwUII.bat
%ALLUSERSPROFILE%\casg.txt
C:\RCX1.tmp
%TEMP%\howcQsMY.bat
%TEMP%\SsEwMAQY.bat
<Current directory>\Wycs.ico
%TEMP%\hMwUkwUc.bat
<Current directory>\UwMA.exe
%TEMP%\ocsEAIgA.bat
<Current directory>\FUoS.exe
%TEMP%\NgkQEwwo.bat
%TEMP%\ymAAsYcc.bat
<Current directory>\CMwi.exe
<Current directory>\NikM.ico
<Current directory>\PaYU.ico
%TEMP%\ksMgksUw.bat
C:\RCXB.tmp
<Current directory>\vIEQ.exe
<Current directory>\oMoo.exe
<Current directory>\qqsg.ico
%TEMP%\fUQUUoQE.bat
C:\RCXD.tmp
%TEMP%\xssIUwMo.bat
C:\RCXC.tmp
%TEMP%\OwcoEggQ.bat
%TEMP%\SuYgEkQw.bat
C:\RCXA.tmp
<Current directory>\xsgQ.ico
C:\RCX7.tmp
C:\RCX8.tmp
<Current directory>\ecME.exe
%TEMP%\HmMAcQks.bat
C:\RCX6.tmp
<Current directory>\WEki.exe
<Current directory>\rskM.ico
%TEMP%\RsggIEYM.bat
C:\RCX9.tmp
<Current directory>\HgEu.exe
<Current directory>\nCUI.ico
%TEMP%\VqAskQkU.bat
%TEMP%\dQcUkkYM.bat
<Current directory>\FAcM.exe
<Current directory>\OaEw.ico

Sets the 'hidden' attribute to the following files:

%ALLUSERSPROFILE%\lwQggIEM\nwAEcgMA.exe
%ALLUSERSPROFILE%\BWogoUMg\aeEkEEcE.exe
%HOMEPATH%\fCkYUMIQ\pUccUkoM.exe

Deletes the following files:

<Current directory>\xuwg.ico
%TEMP%\eIYcssMw.bat
%TEMP%\tKkscYQI.bat
<Current directory>\Awoq.exe
%TEMP%\PowoMQww.bat
<Current directory>\jioo.ico
%TEMP%\EWEwEkwM.bat
%TEMP%\qQEMwUog.bat
<Current directory>\EEcK.exe
%TEMP%\TqwMkEUw.bat
<Current directory>\rUME.exe
<Current directory>\VoAA.ico
%TEMP%\KuQgEkos.bat
%TEMP%\iiYcAEAA.bat
%TEMP%\JoUkgcMk.bat
%TEMP%\HSQowMco.bat
<Current directory>\yioM.ico
%TEMP%\uScwwIok.bat
<Current directory>\MUMC.exe
<Current directory>\sWQw.ico
%TEMP%\oqcUEIUY.bat
%TEMP%\cMYUwAcw.bat
<Current directory>\rwYW.exe
<Current directory>\YMcq.exe
%TEMP%\kWQcAggI.bat
<Current directory>\sYok.ico
<Current directory>\gwIA.ico
<Current directory>\tIYi.exe
%TEMP%\qQcoUIcU.bat
<Current directory>\swYk.ico
%TEMP%\osEkAMIQ.bat
%TEMP%\jocIgoMw.bat
<Current directory>\REwa.exe
%TEMP%\DKkQEgww.bat
<Current directory>\GIkC.exe
<Current directory>\RCow.ico
<Current directory>\WkUw.exe
<Current directory>\WSEo.ico
<Current directory>\LIoA.exe
<Current directory>\RUEc.ico
<Current directory>\wQsQ.ico
%TEMP%\KgAokMYw.bat
<Current directory>\QAEk.exe
<Current directory>\ZWUc.ico
%TEMP%\HmMAcQks.bat
<Current directory>\JsMI.ico
<Current directory>\FUoS.exe
<Current directory>\KYMi.exe
%TEMP%\hMwUkwUc.bat
<Current directory>\UwMA.exe
%TEMP%\hUUUwUII.bat
%TEMP%\bGgsUYMA.bat
<Current directory>\Wycs.ico
<Current directory>\HaQg.ico
%TEMP%\NSMYoEUU.bat
%TEMP%\SsEwMAQY.bat
<Current directory>\TgoC.exe
%TEMP%\NgkQEwwo.bat
%TEMP%\SuYgEkQw.bat
<Current directory>\vIEQ.exe
<Current directory>\PaYU.ico
<Current directory>\CMwi.exe
<Current directory>\oMoo.exe
<Current directory>\qqsg.ico
<Current directory>\NikM.ico
%TEMP%\fUQUUoQE.bat
%TEMP%\ksMgksUw.bat
<Current directory>\ecME.exe
<Current directory>\xsgQ.ico
<Current directory>\WEki.exe
<Current directory>\rskM.ico
%TEMP%\VqAskQkU.bat
<Current directory>\HgEu.exe
<Current directory>\nCUI.ico
<Current directory>\FAcM.exe
<Current directory>\OaEw.ico

Moves the following files:

from C:\RCX10.tmp to <Current directory>\Awoq.exe
from C:\RCX11.tmp to <Current directory>\EEcK.exe
from C:\RCXF.tmp to <Current directory>\MUMC.exe
from C:\RCXD.tmp to <Current directory>\oMoo.exe
from C:\RCXE.tmp to <Current directory>\rUME.exe
from C:\RCX12.tmp to <Current directory>\REwa.exe
from C:\RCX16.tmp to <Current directory>\YMcq.exe
from C:\RCX17.tmp to <Current directory>\tIYi.exe
from C:\RCX15.tmp to <Current directory>\rwYW.exe
from C:\RCX13.tmp to <Current directory>\WkUw.exe
from C:\RCX14.tmp to <Current directory>\GIkC.exe
from C:\RCXC.tmp to <Current directory>\CMwi.exe
from C:\RCX4.tmp to <Current directory>\LIoA.exe
from C:\RCX5.tmp to <Current directory>\QAEk.exe
from C:\RCX3.tmp to <Current directory>\KYMi.exe
from C:\RCX1.tmp to <Current directory>\UwMA.exe
from C:\RCX2.tmp to <Current directory>\TgoC.exe
from C:\RCX6.tmp to <Current directory>\FUoS.exe
from C:\RCXA.tmp to <Current directory>\HgEu.exe
from C:\RCXB.tmp to <Current directory>\vIEQ.exe
from C:\RCX9.tmp to <Current directory>\FAcM.exe
from C:\RCX7.tmp to <Current directory>\WEki.exe
from C:\RCX8.tmp to <Current directory>\ecME.exe

Deletes itself.

Network activity:

Connects to:

'19#.#86.45.170':9999
'74.##5.232.51':80
'20#.#7.164.69':9999
'20#.#19.204.12':9999

TCP:

HTTP GET requests:

74.##5.232.51/

UDP:

DNS ASK google.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: '' WindowName: 'Microsoft Windows'
ClassName: '' WindowName: 'pUccUkoM.exe'
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: 'aeEkEEcE.exe'

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