Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\updates\vfwuunf
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath "%APPDATA%\vFwUUNF.exe"
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\regsvcs.exe
Searches for registry branches where third party applications store passwords
- [HKCU\Software\RimArts\B2\Settings]
- [HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions]
- [HKCU\SOFTWARE\FTPWare\COREFTP\Sites]
- [HKLM\Software\WOW6432Node\ORL\WinVNC3]
- [HKCU\Software\ORL\WinVNC3]
Reads files which store third party applications passwords
- %APPDATA%\opera software\opera stable\login data
- %LOCALAPPDATA%\google\chrome\user data\default\login data
- %APPDATA%\mozilla\firefox\profiles.ini
- %APPDATA%\thunderbird\profiles.ini
Modifies file system
Creates the following files
- %APPDATA%\vfwuunf.exe
- %TEMP%\tmp24ed.tmp
- %LOCALAPPDATA%\microsoft\clr_v4.0_32\usagelogs\<File name>.exe.log
Sets the 'hidden' attribute to the following files
- %APPDATA%\vfwuunf.exe
Modifies the following files
- %LOCALAPPDATA%\microsoft\vault\userprofileroaming\latest.dat
Network activity
Connects to
- 'ap#.#pify.org':443
TCP
Other
- 'ap#.#pify.org':443
UDP
- DNS ASK ap#.#pify.org
Miscellaneous
Searches for the following windows
- ClassName: 'OleMainThreadWndClass' WindowName: ''
Executes the following
- '%WINDIR%\syswow64\schtasks.exe' /Create /TN "Updates\vFwUUNF" /XML "%TEMP%\tmp24ED.tmp"
- '%WINDIR%\microsoft.net\framework\v4.0.30319\regsvcs.exe'
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath "%APPDATA%\vFwUUNF.exe"' (with hidden window)
- '%WINDIR%\syswow64\schtasks.exe' /Create /TN "Updates\vFwUUNF" /XML "%TEMP%\tmp24ED.tmp"' (with hidden window)
