Trojan.DownLoader26.3938

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,%ALLUSERSPROFILE%\WuIEgAsU\lacMcYws.exe,'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'lacMcYws.exe' = '%ALLUSERSPROFILE%\WuIEgAsU\lacMcYws.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SSIkQYgQ.exe' = '%HOMEPATH%\gOEYMkgs\SSIkQYgQ.exe'

Creates the following services:

[<HKLM>\SYSTEM\ControlSet001\Services\vwYgEQEb] 'ImagePath' = '%ALLUSERSPROFILE%\tuIMYcEM\ZgMYMIIE.exe'
[<HKLM>\SYSTEM\ControlSet001\Services\vwYgEQEb] '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)

Modifies file system:

Creates the following files:

%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\car.bmp.exe
<Current directory>\AUYo.ico
<Current directory>\cooi.exe
C:\RCX7.tmp
%TEMP%\tGocMUIQ.bat
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\cat.bmp.exe
<Current directory>\EgUc.exe
C:\RCX8.tmp
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\beach.bmp.exe
<Current directory>\NeEA.ico
C:\RCX5.tmp
%TEMP%\SCgssgIU.bat
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\butterfly.bmp.exe
<Current directory>\TcMo.ico
<Current directory>\FggM.exe
C:\RCX6.tmp
<Current directory>\YUgQ.exe
C:\RCXB.tmp
<Current directory>\iKgI.ico
%TEMP%\dIkoIIgA.bat
<Current directory>\tkgg.exe
C:\RCXC.tmp
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\dog.bmp.exe
<Current directory>\gmAs.ico
C:\RCX9.tmp
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\chess.bmp.exe
<Current directory>\aEYA.ico
<Current directory>\PEwY.exe
C:\RCXA.tmp
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\dirt bike.bmp.exe
<Current directory>\VKMA.ico
<Current directory>\UYYW.exe
<Current directory>\AYwy.exe
<Current directory>\Kwgg.ico
<Current directory>\BEEG.exe
%ALLUSERSPROFILE%\caQc.txt
%ALLUSERSPROFILE%\tuIMYcEM\ZgMYMIIENRTH
%TEMP%\tswAAgYk.bat
<Current directory>\<File name>
C:\RCX1.tmp
C:\Documents and Settings\LocalService\gOEYMkgs\SSIkQYgQ
%ALLUSERSPROFILE%\WuIEgAsU\lacMcYws
%HOMEPATH%\gOEYMkgs\SSIkQYgQ.exe
<Current directory>\<File name>GQVI
%HOMEPATH%\gOEYMkgs\SSIkQYgQ
%HOMEPATH%\gOEYMkgs\SSIkQYgQBLQV
%ALLUSERSPROFILE%\WuIEgAsU\lacMcYwsCOUK
%ALLUSERSPROFILE%\WuIEgAsU\lacMcYws.exe
%ALLUSERSPROFILE%\tuIMYcEM\ZgMYMIIE.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\astronaut.bmp.exe
<Current directory>\YAkQ.ico
C:\RCX3.tmp
%TEMP%\jMYwUEkA.bat
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\ball.bmp.exe
<Current directory>\WOgs.ico
<Current directory>\nMYY.exe
C:\RCX4.tmp
%TEMP%\JaAkMYMk.bat
<Current directory>\GUEa.exe
%TEMP%\ZskIkEME.bat
<Current directory>\OogA.ico
<Current directory>\jaYU.ico
<Current directory>\fsUc.exe
C:\RCX2.tmp
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures\airplane.bmp.exe

Deletes the following files:

<Current directory>\TcMo.ico
<Current directory>\cooi.exe
<Current directory>\EgUc.exe
%TEMP%\tGocMUIQ.bat
<Current directory>\WOgs.ico
<Current directory>\AYwy.exe
<Current directory>\NeEA.ico
<Current directory>\FggM.exe
%TEMP%\dIkoIIgA.bat
<Current directory>\VKMA.ico
<Current directory>\iKgI.ico
<Current directory>\YUgQ.exe
<Current directory>\PEwY.exe
<Current directory>\AUYo.ico
<Current directory>\UYYW.exe
<Current directory>\aEYA.ico
%TEMP%\SCgssgIU.bat
<Current directory>\BEEG.exe
%TEMP%\tswAAgYk.bat
%TEMP%\ZskIkEME.bat
<Current directory>\Kwgg.ico
%HOMEPATH%\gOEYMkgs\SSIkQYgQBLQV
<Current directory>\<File name>GQVI
%ALLUSERSPROFILE%\tuIMYcEM\ZgMYMIIENRTH
%ALLUSERSPROFILE%\WuIEgAsU\lacMcYwsCOUK
<Current directory>\jaYU.ico
<Current directory>\fsUc.exe
<Current directory>\YAkQ.ico
<Current directory>\nMYY.exe
<Current directory>\GUEa.exe
%TEMP%\JaAkMYMk.bat
%TEMP%\jMYwUEkA.bat
<Current directory>\OogA.ico

Substitutes the following files:

<Current directory>\EgUc.exe
<Current directory>\cooi.exe
<Current directory>\FggM.exe
<Current directory>\YUgQ.exe
<Current directory>\UYYW.exe
<Current directory>\PEwY.exe
<Current directory>\GUEa.exe
<Current directory>\<File name>GQVI
<Current directory>\BEEG.exe
<Current directory>\AYwy.exe
<Current directory>\nMYY.exe
<Current directory>\fsUc.exe

Network activity:

Connects to:

'74.##5.232.51':80

TCP:

HTTP GET requests:

http://google.com/ via 74.##5.232.51

UDP:

DNS ASK google.com

Miscellaneous:

Searches for the following windows:

ClassName: '' WindowName: 'SSIkQYgQ.exe'
ClassName: '' WindowName: 'Microsoft Windows'
ClassName: '' WindowName: 'lacMcYws.exe'

Creates and executes the following:

'%ALLUSERSPROFILE%\WuIEgAsU\lacMcYws.exe'
'%ALLUSERSPROFILE%\tuIMYcEM\ZgMYMIIE.exe'
'<Full path to file>'
'%HOMEPATH%\gOEYMkgs\SSIkQYgQ.exe'

Executes the following:

'<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 "<Current directory>\<File name>"
'<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v HideFileExt /t REG_DWORD /d 1

Демо бесплатно на 14 дней

Выдаётся при установке

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Technical Information

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Демо бесплатно на 14 дней