Trojan.DownLoader12.5962

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<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%\AiUEMMEg.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\kKsAkUoM.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\OygIEUgM.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\KQogcQcQ.bat" "<Full path to virus>""
'<SYSTEM32>\wbem\wmiadap.exe' /R /T
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\vgwwkscs.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\NSAUowgQ.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%\fAYQQMYg.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\GGsoMwEs.bat" "<Full path to virus>""
'<SYSTEM32>\cmd.exe' /c ""%TEMP%\TIsEsgcE.bat" "<Full path to virus>""
'<SYSTEM32>\cscript.exe' %TEMP%\file.vbs

Modifies file system :

Creates the following files:

C:\RCX13.tmp
<Current directory>\iGoM.ico
<Current directory>\yYkq.exe
<Current directory>\LAMK.exe
<Current directory>\HYQE.exe
C:\RCX12.tmp
<Current directory>\zMwY.ico
C:\RCX14.tmp
<Current directory>\DsMI.exe
C:\RCX16.tmp
<Current directory>\nEoU.ico
<Current directory>\YEos.ico
<Current directory>\wuYk.ico
<Current directory>\ZAkg.exe
C:\RCX15.tmp
C:\RCXE.tmp
<Current directory>\myQg.ico
<Current directory>\PsEg.exe
<Current directory>\PYUU.exe
<Current directory>\EIAo.exe
C:\RCXD.tmp
<Current directory>\sqcE.ico
C:\RCXF.tmp
<Current directory>\oksa.exe
C:\RCX11.tmp
<Current directory>\OQQw.ico
<Current directory>\qEgE.ico
<Current directory>\ikAI.ico
<Current directory>\lQUS.exe
C:\RCX10.tmp
<Current directory>\BQUy.exe
<Current directory>\hysA.ico
<Current directory>\lEQc.exe
C:\RCX1E.tmp
C:\RCX1D.tmp
C:\RCX1C.tmp
<Current directory>\vwsY.ico
<Current directory>\RoMO.exe
<Current directory>\ZIgg.ico
<Current directory>\zwos.ico
<Current directory>\XIwE.exe
%TEMP%\vgwwkscs.bat
<Current directory>\UkAA.exe
<Current directory>\dQoE.exe
C:\RCX1F.tmp
<Current directory>\qYoI.ico
<Current directory>\CmQM.ico
<Current directory>\GQwQ.exe
C:\RCX19.tmp
C:\RCX18.tmp
C:\RCX17.tmp
<Current directory>\tWAk.ico
<Current directory>\YcIy.exe
<Current directory>\fWwk.ico
C:\RCX1B.tmp
<Current directory>\zoEc.ico
<Current directory>\vsAw.exe
<Current directory>\nAEe.exe
<Current directory>\NUEy.exe
C:\RCX1A.tmp
<Current directory>\esck.ico
%TEMP%\kKsAkUoM.bat
%TEMP%\bWoEgIgU.bat
%TEMP%\AiUEMMEg.bat
%TEMP%\PacswQQc.bat
%TEMP%\OKUoMIMw.bat
%TEMP%\OygIEUgM.bat
<Current directory>\tuoA.ico
%TEMP%\pKggwQgM.bat
%TEMP%\KcgkIAAE.bat
C:\RCX2.tmp
%TEMP%\hSQIAAIg.bat
<Current directory>\EgsI.exe
%TEMP%\KQogcQcQ.bat
%TEMP%\wyMUMQIw.bat
%TEMP%\NSAUowgQ.bat
%TEMP%\MIsMwssU.bat
%TEMP%\fAYQQMYg.bat
%ALLUSERSPROFILE%\casg.txt
<Current directory>\<Virus name>
%ALLUSERSPROFILE%\lwQggIEM\nwAEcgMA.exe
%TEMP%\VgoYoEAY.bat
%TEMP%\file.vbs
%TEMP%\JsMsUwkA.bat
C:\RCX1.tmp
%TEMP%\GGsoMwEs.bat
<Current directory>\cIcu.exe
%TEMP%\GYssEocI.bat
<Current directory>\zMQU.ico
%TEMP%\TIsEsgcE.bat
<Current directory>\gQMI.ico
C:\RCX9.tmp
<Current directory>\tWMg.ico
<Current directory>\uwoM.exe
<Current directory>\FkQW.exe
<Current directory>\OkQc.exe
C:\RCX8.tmp
<Current directory>\FOss.ico
C:\RCXA.tmp
<Current directory>\EcYS.exe
C:\RCXC.tmp
<Current directory>\JUUs.ico
<Current directory>\uoMY.ico
<Current directory>\uusY.ico
<Current directory>\cwYs.exe
C:\RCXB.tmp
C:\RCX4.tmp
<Current directory>\quko.ico
<Current directory>\uAIe.exe
<Current directory>\yMEW.exe
<Current directory>\vcgU.exe
C:\RCX3.tmp
<Current directory>\KMIA.ico
C:\RCX5.tmp
<Current directory>\Fcso.exe
C:\RCX7.tmp
<Current directory>\qIEg.ico
<Current directory>\RgAA.ico
<Current directory>\cCMM.ico
<Current directory>\qUcG.exe
C:\RCX6.tmp

Sets the 'hidden' attribute to the following files:

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

Deletes the following files:

<Current directory>\yYkq.exe
<Current directory>\iGoM.ico
<Current directory>\LAMK.exe
<Current directory>\zMwY.ico
<Current directory>\ZAkg.exe
<Current directory>\YEos.ico
<Current directory>\BQUy.exe
<Current directory>\wuYk.ico
<Current directory>\DsMI.exe
<Current directory>\myQg.ico
<Current directory>\lQUS.exe
<Current directory>\sqcE.ico
<Current directory>\PsEg.exe
<Current directory>\ikAI.ico
<Current directory>\HYQE.exe
<Current directory>\OQQw.ico
<Current directory>\oksa.exe
<Current directory>\qEgE.ico
<Current directory>\RoMO.exe
<Current directory>\vwsY.ico
<Current directory>\vsAw.exe
<Current directory>\zoEc.ico
<Current directory>\lEQc.exe
<Current directory>\ZIgg.ico
<Current directory>\qYoI.ico
<Current directory>\hysA.ico
<Current directory>\dQoE.exe
<Current directory>\tWAk.ico
<Current directory>\GQwQ.exe
<Current directory>\nEoU.ico
<Current directory>\YcIy.exe
<Current directory>\CmQM.ico
<Current directory>\nAEe.exe
<Current directory>\esck.ico
<Current directory>\NUEy.exe
<Current directory>\fWwk.ico
<Current directory>\PYUU.exe
%TEMP%\KcgkIAAE.bat
<Current directory>\EgsI.exe
%TEMP%\pKggwQgM.bat
%TEMP%\wyMUMQIw.bat
<Current directory>\tuoA.ico
<Current directory>\yMEW.exe
<Current directory>\KMIA.ico
<Current directory>\vcgU.exe
<Current directory>\gQMI.ico
%TEMP%\GYssEocI.bat
%TEMP%\JsMsUwkA.bat
%TEMP%\VgoYoEAY.bat
%TEMP%\MIsMwssU.bat
<Current directory>\cIcu.exe
%TEMP%\PacswQQc.bat
%TEMP%\bWoEgIgU.bat
<Current directory>\zMQU.ico
%TEMP%\OKUoMIMw.bat
<Current directory>\tWMg.ico
<Current directory>\cwYs.exe
<Current directory>\FOss.ico
<Current directory>\uwoM.exe
<Current directory>\uusY.ico
<Current directory>\EIAo.exe
<Current directory>\JUUs.ico
<Current directory>\EcYS.exe
<Current directory>\uoMY.ico
<Current directory>\qUcG.exe
<Current directory>\cCMM.ico
<Current directory>\uAIe.exe
<Current directory>\quko.ico
<Current directory>\Fcso.exe
<Current directory>\qIEg.ico
<Current directory>\FkQW.exe
<Current directory>\RgAA.ico
<Current directory>\OkQc.exe

Moves the following files:

from C:\RCX15.tmp to <Current directory>\ZAkg.exe
from C:\RCX16.tmp to <Current directory>\DsMI.exe
from C:\RCX17.tmp to <Current directory>\BQUy.exe
from C:\RCX14.tmp to <Current directory>\yYkq.exe
from C:\RCX11.tmp to <Current directory>\oksa.exe
from C:\RCX12.tmp to <Current directory>\HYQE.exe
from C:\RCX13.tmp to <Current directory>\LAMK.exe
from C:\RCX18.tmp to <Current directory>\YcIy.exe
from C:\RCX1D.tmp to <Current directory>\RoMO.exe
from C:\RCX1E.tmp to <Current directory>\lEQc.exe
from C:\RCX1F.tmp to <Current directory>\dQoE.exe
from C:\RCX1C.tmp to <Current directory>\vsAw.exe
from C:\RCX19.tmp to <Current directory>\GQwQ.exe
from C:\RCX1A.tmp to <Current directory>\NUEy.exe
from C:\RCX1B.tmp to <Current directory>\nAEe.exe
from C:\RCX10.tmp to <Current directory>\lQUS.exe
from C:\RCX5.tmp to <Current directory>\uAIe.exe
from C:\RCX6.tmp to <Current directory>\qUcG.exe
from C:\RCX7.tmp to <Current directory>\Fcso.exe
from C:\RCX4.tmp to <Current directory>\yMEW.exe
from C:\RCX1.tmp to <Current directory>\cIcu.exe
from C:\RCX2.tmp to <Current directory>\EgsI.exe
from C:\RCX3.tmp to <Current directory>\vcgU.exe
from C:\RCX8.tmp to <Current directory>\OkQc.exe
from C:\RCXD.tmp to <Current directory>\EIAo.exe
from C:\RCXE.tmp to <Current directory>\PYUU.exe
from C:\RCXF.tmp to <Current directory>\PsEg.exe
from C:\RCXC.tmp to <Current directory>\EcYS.exe
from C:\RCX9.tmp to <Current directory>\FkQW.exe
from C:\RCXA.tmp to <Current directory>\uwoM.exe
from C:\RCXB.tmp to <Current directory>\cwYs.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'

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

Technical Information

Curing recommendations

Free trial