Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Kvppfgzlg' = '%APPDATA%\Microsoft\Windows\Libraries\RY7tSrs\dwm.exe'
Creates or modifies the following files
- <SYSTEM32>\tasks\jufunx
- %APPDATA%\Microsoft\windows\Start Menu\programs\startup\ubdaimigrb.lnk
Malicious functions
Executes the following
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="Core Networking - Multicast Listener Done (ICMPv4-In)" program="%WINDIR%\Explorer.EXE" dir=in action=allow protocol=TCP localport=any
Injects code into
the following system processes:
- %WINDIR%\explorer.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\wusa.exe
- <SYSTEM32>\dwm.exe
- <SYSTEM32>\computerdefaults.exe
the following user processes:
- firefox.exe
- iexplore.exe
Modifies file system
Creates the following files
- %LOCALAPPDATA%\zbcoivdfs\wtsapi32.dll
- %LOCALAPPDATA%\zbcoivdfs\wusa.exe
- %APPDATA%\macromedia\flash player\#sharedobjects\gr8by44n\yastatic.net\eb\wtsapi32.dll
- %APPDATA%\macromedia\flash player\#sharedobjects\gr8by44n\yastatic.net\eb\wusa.exe
- %LOCALAPPDATA%\dgvdta5y\uxtheme.dll
- %LOCALAPPDATA%\dgvdta5y\dwm.exe
- %APPDATA%\microsoft\windows\libraries\ry7tsrs\uxtheme.dll
- %APPDATA%\microsoft\windows\libraries\ry7tsrs\dwm.exe
- %LOCALAPPDATA%\k3kukpe81\appwiz.cpl
- %LOCALAPPDATA%\k3kukpe81\computerdefaults.exe
- %APPDATA%\opera software\opera stable\extension state\wxrgqb\appwiz.cpl
- %APPDATA%\opera software\opera stable\extension state\wxrgqb\computerdefaults.exe
Deletes the following files
- %LOCALAPPDATA%\zbcoivdfs\wtsapi32.dll
- %LOCALAPPDATA%\zbcoivdfs\wusa.exe
- %LOCALAPPDATA%\dgvdta5y\dwm.exe
- %LOCALAPPDATA%\dgvdta5y\uxtheme.dll
- %LOCALAPPDATA%\k3kukpe81\appwiz.cpl
- %LOCALAPPDATA%\k3kukpe81\computerdefaults.exe
Substitutes the following files
- %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-1960123792-2022915161-3775307078-1001\f58155b4b1d5a524ca0261c3ee99fb50_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
Miscellaneous
Creates and executes the following
- '%LOCALAPPDATA%\zbcoivdfs\wusa.exe'
- '%LOCALAPPDATA%\dgvdta5y\dwm.exe'
- '%LOCALAPPDATA%\k3kukpe81\computerdefaults.exe'
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="Core Networking - Multicast Listener Done (ICMPv4-In)" program="%WINDIR%\Explorer.EXE" dir=in action=allow protocol=TCP localport=any' (with hidden window)
