Trojan.DownLoader11.45186

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%\ZycgwkIk.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\tIEQkkcQ.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\ymswscQM.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\ycswMUIY.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\TMQYYcIc.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\hQIYwQcA.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\kEQwEIMM.bat" "<Full path to virus>""
'<SYSTEM32>\wbem\wmiadap.exe' /R /T
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\jOkAkEIA.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\fUkosQcc.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\xqwskMIY.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\MgccMUoU.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\lKgAkQEo.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\KAsUwUoo.bat" "<Full path to virus>""
'<SYSTEM32>\cscript.exe' %TEMP%\file.vbs
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\hEoksMUw.bat" "<Full path to virus>""
'<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v HideFileExt /t REG_DWORD /d 1
'<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v Hidden /t REG_DWORD /d 2
'<SYSTEM32>\reg.exe' add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /d 0 /t REG_DWORD /f
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\taAUsgwI.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\mUggskAY.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\loYkokAc.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\aIIIgQUk.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\MWcAQcwQ.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\rksYgAgQ.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\nGMMUMcI.bat" "<Full path to virus>""

Modifies file system :

Creates the following files:

<Current directory>\yQwK.exe
%TEMP%\ZycgwkIk.bat
C:\RCXF.tmp
%TEMP%\hQIYwQcA.bat
%TEMP%\tWUgMsMM.bat
<Current directory>\UMwA.ico
%TEMP%\CyAooYkk.bat
<Current directory>\lggU.exe
%TEMP%\ymswscQM.bat
%TEMP%\SyYAIskE.bat
%TEMP%\tIEQkkcQ.bat
%TEMP%\riwMMwkc.bat
<Current directory>\Gaws.ico
C:\RCXE.tmp
<Current directory>\UqcM.ico
<Current directory>\MQwm.exe
C:\RCXC.tmp
C:\RCXB.tmp
%TEMP%\ycswMUIY.bat
%TEMP%\OKocYgwY.bat
<Current directory>\EIQg.ico
%TEMP%\pYoIcgwU.bat
<Current directory>\AsIk.ico
<Current directory>\dwEe.exe
<Current directory>\hcAS.exe
C:\RCXD.tmp
%TEMP%\TMQYYcIc.bat
C:\RCX10.tmp
%TEMP%\zWYoUEgo.bat
<Current directory>\eeUU.ico
<Current directory>\UkYq.exe
<Current directory>\kWsE.ico
<Current directory>\IUQE.exe
C:\RCX13.tmp
%TEMP%\jOkAkEIA.bat
<Current directory>\nEwk.ico
<Current directory>\VEYq.exe
C:\RCX15.tmp
C:\RCX14.tmp
%TEMP%\dQIkAkMs.bat
%TEMP%\fUkosQcc.bat
%TEMP%\UqwEYoAU.bat
%TEMP%\XOMIwQYo.bat
<Current directory>\Huwo.ico
<Current directory>\jgAG.exe
%TEMP%\WWgIEcwI.bat
%TEMP%\kEQwEIMM.bat
%TEMP%\xqwskMIY.bat
C:\RCX11.tmp
<Current directory>\UsIo.exe
C:\RCX12.tmp
%TEMP%\lKgAkQEo.bat
%TEMP%\MgccMUoU.bat
%TEMP%\MMMUoAIU.bat
<Current directory>\YCAw.ico
<Current directory>\vEMy.exe
<Current directory>\EsYq.exe
%TEMP%\taAUsgwI.bat
C:\RCX3.tmp
<Current directory>\IwMi.exe
C:\RCX2.tmp
<Current directory>\JUEE.ico
<Current directory>\ReYk.ico
%TEMP%\MWcAQcwQ.bat
<Current directory>\Husg.ico
<Current directory>\xUcS.exe
<Current directory>\fIUI.exe
%TEMP%\fSkEQIgs.bat
C:\RCX4.tmp
%TEMP%\qqYgggEw.bat
<Current directory>\<Virus name>
%TEMP%\KAsUwUoo.bat
%TEMP%\sKoggYoM.bat
%ALLUSERSPROFILE%\lwQggIEM\nwAEcgMA.exe
%TEMP%\bgAcIIoI.bat
%TEMP%\file.vbs
C:\RCX1.tmp
%ALLUSERSPROFILE%\casg.txt
<Current directory>\Oeco.ico
%TEMP%\hEoksMUw.bat
<Current directory>\BuIk.ico
<Current directory>\egMC.exe
C:\RCX5.tmp
%TEMP%\YaUkYAUU.bat
<Current directory>\agoQ.ico
<Current directory>\VQUu.exe
<Current directory>\jAUw.exe
C:\RCX8.tmp
%TEMP%\loYkokAc.bat
C:\RCX9.tmp
%TEMP%\NsgUocUU.bat
%TEMP%\aIIIgQUk.bat
<Current directory>\TMEs.ico
<Current directory>\QWUE.ico
<Current directory>\Kwcu.exe
C:\RCXA.tmp
<Current directory>\zaMk.ico
<Current directory>\QUEY.exe
C:\RCX6.tmp
%TEMP%\EiIsMEQU.bat
%TEMP%\DuYIwUkk.bat
<Current directory>\hwYc.ico
%TEMP%\rksYgAgQ.bat
%TEMP%\nGMMUMcI.bat
%TEMP%\MKUwMcgo.bat
<Current directory>\EocK.exe
C:\RCX7.tmp
%TEMP%\caUYAokU.bat
%TEMP%\mUggskAY.bat
<Current directory>\lqow.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:

%TEMP%\CyAooYkk.bat
%TEMP%\tWUgMsMM.bat
<Current directory>\AsIk.ico
%TEMP%\riwMMwkc.bat
%TEMP%\SyYAIskE.bat
<Current directory>\UMwA.ico
<Current directory>\yQwK.exe
<Current directory>\dwEe.exe
<Current directory>\MQwm.exe
%TEMP%\OKocYgwY.bat
<Current directory>\TMEs.ico
<Current directory>\UqcM.ico
%TEMP%\pYoIcgwU.bat
<Current directory>\EIQg.ico
<Current directory>\hcAS.exe
%TEMP%\WWgIEcwI.bat
<Current directory>\IUQE.exe
%TEMP%\zWYoUEgo.bat
<Current directory>\YCAw.ico
<Current directory>\kWsE.ico
%TEMP%\dQIkAkMs.bat
<Current directory>\eeUU.ico
<Current directory>\UkYq.exe
<Current directory>\UsIo.exe
<Current directory>\Gaws.ico
%TEMP%\XOMIwQYo.bat
<Current directory>\lggU.exe
%TEMP%\MMMUoAIU.bat
%TEMP%\UqwEYoAU.bat
<Current directory>\Huwo.ico
<Current directory>\jgAG.exe
<Current directory>\fIUI.exe
%TEMP%\fSkEQIgs.bat
<Current directory>\JUEE.ico
<Current directory>\ReYk.ico
<Current directory>\Husg.ico
<Current directory>\xUcS.exe
%TEMP%\DuYIwUkk.bat
<Current directory>\EsYq.exe
<Current directory>\egMC.exe
%TEMP%\sKoggYoM.bat
%TEMP%\bgAcIIoI.bat
<Current directory>\BuIk.ico
<Current directory>\Oeco.ico
<Current directory>\IwMi.exe
%TEMP%\qqYgggEw.bat
%TEMP%\EiIsMEQU.bat
<Current directory>\agoQ.ico
<Current directory>\VQUu.exe
%TEMP%\YaUkYAUU.bat
%TEMP%\NsgUocUU.bat
<Current directory>\vEMy.exe
<Current directory>\QWUE.ico
<Current directory>\Kwcu.exe
<Current directory>\zaMk.ico
<Current directory>\hwYc.ico
<Current directory>\QUEY.exe
%TEMP%\caUYAokU.bat
%TEMP%\MKUwMcgo.bat
<Current directory>\jAUw.exe
<Current directory>\lqow.ico
<Current directory>\EocK.exe

Moves the following files:

from C:\RCXE.tmp to <Current directory>\dwEe.exe
from C:\RCXF.tmp to <Current directory>\yQwK.exe
from C:\RCXD.tmp to <Current directory>\hcAS.exe
from C:\RCXB.tmp to <Current directory>\vEMy.exe
from C:\RCXC.tmp to <Current directory>\MQwm.exe
from C:\RCX13.tmp to <Current directory>\IUQE.exe
from C:\RCX14.tmp to <Current directory>\UkYq.exe
from C:\RCX12.tmp to <Current directory>\UsIo.exe
from C:\RCX10.tmp to <Current directory>\lggU.exe
from C:\RCX11.tmp to <Current directory>\jgAG.exe
from C:\RCX4.tmp to <Current directory>\fIUI.exe
from C:\RCX5.tmp to <Current directory>\xUcS.exe
from C:\RCX3.tmp to <Current directory>\EsYq.exe
from C:\RCX1.tmp to <Current directory>\egMC.exe
from C:\RCX2.tmp to <Current directory>\IwMi.exe
from C:\RCX9.tmp to <Current directory>\VQUu.exe
from C:\RCXA.tmp to <Current directory>\Kwcu.exe
from C:\RCX8.tmp to <Current directory>\jAUw.exe
from C:\RCX6.tmp to <Current directory>\QUEY.exe
from C:\RCX7.tmp to <Current directory>\EocK.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: '' WindowName: 'pUccUkoM.exe'
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: 'aeEkEEcE.exe'

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