Trojan.DownLoader33.34072

Technical Information

To ensure autorun and distribution

Creates the following services

[<HKLM>\System\CurrentControlSet\Services\B00E3894] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\B00E3894] 'ImagePath' = '<SYSTEM32>\svchost.exe -k LocalService'
[<HKLM>\SYSTEM\ControlSet001\services\B00E3894] 'ImagePath' = '<SYSTEM32>\svchost.exe -k LocalService�'
[<HKLM>\SYSTEM\ControlSet001\services\B00E3894\Parameters] 'ServiceDll' = '%PROGRAMDATA%\B00E3894\0F1EBC6C.dll�'
[<HKLM>\SYSTEM\ControlSet001\services\B00E3894] 'Start' = '00000002'

Malicious functions

Injects code into

the following system processes:

<SYSTEM32>\winlogon.exe
<SYSTEM32>\services.exe

Terminates or attempts to terminate

the following system processes:

%WINDIR%\syswow64\rundll32.exe

Searches for registry branches where third party applications store passwords

[<HKCU>\SOFTWARE\Mirabilis\ICQ\NewOwners]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 8 Professional\QCToolbar]
[<HKCU>\Software\FlashFXP\3]
[<HKCU>\Software\FlashFXP]
[<HKLM>\Software\Wow6432Node\FlashFXP\3]
[<HKLM>\Software\Wow6432Node\FlashFXP]
[<HKCU>\Software\FileZilla]
[<HKCU>\Software\BPFTP\Bullet Proof FTP\Main]
[<HKCU>\Software\BulletProof Software\BulletProof FTP Client\Main]
[<HKCU>\Software\BPFTP\Bullet Proof FTP\Options]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 7 Professional\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 8 Home\QCToolbar]
[<HKCU>\Software\BulletProof Software\BulletProof FTP Client\Options]
[<HKCU>\Software\Sota\FFFTP\Options]
[<HKCU>\Software\CoffeeCup Software\Internet\Profiles]
[<HKCU>\Software\FTPWare\COREFTP\Sites]
[<HKCU>\Software\FTP Explorer\Profiles]
[<HKCU>\Software\VanDyke\SecureFX]
[<HKCU>\Software\Cryer\WebSitePublisher]
[<HKCU>\Software\ExpanDrive\Sessions]
[<HKCU>\Software\NCH Software\ClassicFTP\FTPAccounts]
[<HKLM>\SOFTWARE\Wow6432Node\NCH Software\Fling\Accounts]
[<HKCU>\Software\BPFTP]
[<HKCU>\Software\TurboFTP]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 7 Home\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 6 Professional\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 6 Home\QCToolbar]
[<HKCU>\Software\Yahoo\Pager]
[<HKCU>\Software\America Online\AOL Instant Messenger (TM)\CurrentVersion\Users]
[<HKCU>\Software\Google\Google Talk\Accounts]
[<HKCU>\Software\Paltalk]
[<HKCU>\Software\AIM\AIMPro]
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Trillian]
[<HKCU>\Software\RimArts\B2\Settings]
[<HKCU>\SOFTWARE\RIT\The Bat!]
[<HKCU>\SOFTWARE\RIT\The Bat!\Users depot]
[<HKCU>\Software\Microsoft\Internet Account Manager\Accounts]
[<HKCU>\Software\Microsoft\MSNMessenger]
[<HKLM>\Software\Wow6432Node\Microsoft\Internet Account Manager]
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Microsoft Outlook Internet Settings]
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook]
[<HKCU>\SOFTWARE\Far\Plugins\FTP\Hosts]
[<HKCU>\SOFTWARE\Far2\Plugins\FTP\Hosts]
[<HKCU>\Software\Far\SavedDialogHistory\FTPHost]
[<HKCU>\Software\Far2\SavedDialogHistory\FTPHost]
[<HKCU>\Software\Ghisler\Windows Commander]
[<HKCU>\Software\Ghisler\Total Commander]
[<HKLM>\Software\Wow6432Node\Ghisler\Windows Commander]
[<HKLM>\Software\Wow6432Node\Ghisler\Total Commander]
[<HKCU>\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
[<HKCU>\Software\Martin Prikryl\WinSCP 2\Sessions]
[<HKCU>\Software\South River Technologies\WebDrive\Connections]

Reads files which store third party applications passwords

%APPDATA%\mozilla\firefox\profiles.ini
%APPDATA%\opera software\opera stable\login data
%LOCALAPPDATA%\google\chrome\user data\default\web data
%LOCALAPPDATA%\google\chrome\user data\default\login data
%APPDATA%\thunderbird\profiles.ini
%LOCALAPPDATA%\google\chrome\user data\default\cookies

Modifies file system

Creates the following files

<Full path to file>
%WINDIR%\syswow64\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\low\content.ie5\index.dat
%TEMP%\1162234.tmp-shm
%TEMP%\1162140.tmp-shm
%TEMP%\1159109.tmp-shm
%TEMP%\1156031.tmp-shm
%TEMP%\1155484.tmp-shm
%TEMP%\1155484.tmp
%TEMP%\1155468.tmp
%TEMP%\1149406.tmp
%WINDIR%\syswow64\config\systemprofile\appdata\roaming\microsoft\windows\cookies\low\index.dat
%TEMP%\1149390.tmp
%TEMP%\1113906.tmp
%TEMP%\1113890.tmp
%TEMP%\1113828.tmp
%TEMP%\1111828.tmp
%PROGRAMDATA%\b00e3894\0001dae2
%PROGRAMDATA%\b00e3894\05a18215\4a0aa037d2cfc5bd221651c90bed8021
%PROGRAMDATA%\b00e3894\0f1ebc6c.dll
%PROGRAMDATA%\b00e3894\5c58f3e9.dll
%PROGRAMDATA%\b00e3894\69801d6e
%PROGRAMDATA%\microsoft\crypto\rsa\machinekeys\8eb1a3a8a7233706e47da06b268f5dba_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
%WINDIR%\syswow64\config\systemprofile\appdata\local\microsoft\windows\history\low\history.ie5\index.dat

Sets the 'hidden' attribute to the following files

%PROGRAMDATA%\b00e3894\5c58f3e9.dll
%PROGRAMDATA%\b00e3894\0f1ebc6c.dll

Deletes the following files

<Full path to file>
%PROGRAMDATA%\b00e3894\0001dae2
%PROGRAMDATA%\b00e3894\05a18215\4a0aa037d2cfc5bd221651c90bed8021
%TEMP%\1155484.tmp-shm
%TEMP%\1156031.tmp-shm
%TEMP%\1159109.tmp-shm
%TEMP%\1162140.tmp-shm
%TEMP%\1162234.tmp-shm

Substitutes the following files

%PROGRAMDATA%\b00e3894\0001dae2

Network activity

TCP

'5.##.56.192':443

Miscellaneous

Adds a root certificate

Searches for the following windows

ClassName: '7BF3EE33' WindowName: '7BF3EE33'

Creates and executes the following

'%WINDIR%\syswow64\regsvr32.exe' -s <Full path to file> f1 <Full path to file>@544' (with hidden window)
'%WINDIR%\syswow64\rundll32.exe' <Full path to file>,f0' (with hidden window)
'%WINDIR%\syswow64\rundll32.exe' %ProgramFiles%\B00E3894\0F1EBC6C.dll,f1 <Full path to file>@1208' (with hidden window)

Executes the following

'%WINDIR%\syswow64\regsvr32.exe' -s <Full path to file> f1 <Full path to file>@544
'%WINDIR%\syswow64\rundll32.exe' <Full path to file>,f0
'%WINDIR%\syswow64\rundll32.exe' %ProgramFiles%\B00E3894\0F1EBC6C.dll,f1 <Full path to file>@1208
'<SYSTEM32>\rundll32.exe' %ProgramFiles%\B00E3894\0F1EBC6C.dll,f1 <Full path to file>@1208
'<SYSTEM32>\rundll32.exe' %PROGRAMDATA%\B00E3894\0F1EBC6C.dll,f2 1FCAAAC36182D72B5B244331A7421701
'<SYSTEM32>\svchost.exe' -k LocalService
'%WINDIR%\syswow64\rundll32.exe' %PROGRAMDATA%\B00E3894\5C58F3E9.dll,f3
'%WINDIR%\syswow64\rundll32.exe' %PROGRAMDATA%\B00E3894\5C58F3E9.dll,f7
'%WINDIR%\syswow64\rundll32.exe' %PROGRAMDATA%\B00E3894\5C58F3E9.dll,f2 E48E292D52AA1264BCBA6B30A9CB2113
'%WINDIR%\syswow64\rundll32.exe' "%WINDIR%\syswow64\wininet.dll",DispatchAPICall 1