Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\MaYdFLVLOAQK.lnk
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /stext "%TEMP%\holdermail.txt"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /stext "%TEMP%\holderwb.txt"
- '%APPDATA%\FWBH.exe' "%APPDATA%\FWBHF.au3"
- '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe'
Injects code into
the following system processes:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe
Searches for registry branches where third party applications store passwords:
- [<HKCU>\Software\Microsoft\IdentityCRL]
- [<HKCU>\Software\Microsoft\MSNMessenger]
- [<HKCU>\Software\Microsoft\Internet Explorer\IntelliForms\Storage2]
- [<HKCU>\Software\Microsoft\Windows Live Mail]
- [<HKCU>\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
- [<HKCU>\Software\Microsoft\Internet Account Manager\Accounts]
- [<HKCU>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
- [<HKCU>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\Software\Microsoft\Internet Account Manager\Accounts]
Modifies file system:
Creates the following files:
- %APPDATA%\pidloc.txt
- %APPDATA%\pid.txt
- %TEMP%\holderwb.txt
- %TEMP%\holdermail.txt
- %TEMP%\xejdspc
- %TEMP%\aut1.tmp
- %APPDATA%\FWBHF.au3
- %APPDATA%\FWBH.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\xispFJujBFNwGzue\FWBHF.au3
- %HOMEPATH%\xispFJujBFNwGzue\FWBH.exe
Deletes the following files:
- %TEMP%\holdermail.txt
- %TEMP%\holderwb.txt
- %TEMP%\aut1.tmp
- %TEMP%\xejdspc
Moves the following files:
- from %APPDATA%\FWBH.exe to %HOMEPATH%\xispFJujBFNwGzue\FWBH.exe
- from %APPDATA%\FWBHF.au3 to %HOMEPATH%\xispFJujBFNwGzue\FWBHF.au3
Network activity:
Connects to:
- 'sm##.gmail.com':587
- 'wh#####yipaddress.com':80
- 'wp#d':80
TCP:
HTTP GET requests:
- http://wh#####yipaddress.com/
- http://11#.#11.111.1/wpad.dat via wp#d
UDP:
- DNS ASK sm##.gmail.com
- DNS ASK wh#####yipaddress.com
- DNS ASK wp#d
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
