Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Umdtezka' = '%APPDATA%\MACROM~1\FLASHP~1\MACROM~1.COM\support\yj\msconfig.exe'
Creates or modifies the following files
- <SYSTEM32>\tasks\ajipzmsdf
- %APPDATA%\Microsoft\windows\Start Menu\programs\startup\xltswqmyjrfhck.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>\rdpclip.exe
- <SYSTEM32>\msconfig.exe
- <SYSTEM32>\displayswitch.exe
the following user processes:
- firefox.exe
- iexplore.exe
Reads files which store third party applications passwords
- %HOMEPATH%\desktop\nwfieldnotes1966.docx
- %HOMEPATH%\desktop\issi2013_template_for_posters.docx
- %HOMEPATH%\desktop\february_catalogue__2015.doc
Modifies file system
Creates the following files
- %LOCALAPPDATA%\3vhoy\wtsapi32.dll
- %LOCALAPPDATA%\3vhoy\rdpclip.exe
- %APPDATA%\mail.ru\agent\mra\html\uz\error\jf3qoqwp\wtsapi32.dll
- %APPDATA%\mail.ru\agent\mra\html\uz\error\jf3qoqwp\rdpclip.exe
- %LOCALAPPDATA%\5fiq\mfc42u.dll
- %LOCALAPPDATA%\5fiq\msconfig.exe
- %APPDATA%\macromedia\flash player\macromedia.com\support\yj\mfc42u.dll
- %APPDATA%\macromedia\flash player\macromedia.com\support\yj\msconfig.exe
- %LOCALAPPDATA%\fsa8valk\slc.dll
- %LOCALAPPDATA%\fsa8valk\displayswitch.exe
- %APPDATA%\mail.ru\agent\mra\skin_cache\0uyf\slc.dll
- %APPDATA%\mail.ru\agent\mra\skin_cache\0uyf\displayswitch.exe
Deletes the following files
- %LOCALAPPDATA%\3vhoy\rdpclip.exe
- %LOCALAPPDATA%\3vhoy\wtsapi32.dll
- %LOCALAPPDATA%\5fiq\mfc42u.dll
- %LOCALAPPDATA%\5fiq\msconfig.exe
- %LOCALAPPDATA%\fsa8valk\displayswitch.exe
- %LOCALAPPDATA%\fsa8valk\slc.dll
Modifies the following files
- %APPDATA%\microsoft\crypto\rsa\s-1-5-21-1960123792-2022915161-3775307078-1001\f58155b4b1d5a524ca0261c3ee99fb50_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
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%\3vhoy\rdpclip.exe'
- '%LOCALAPPDATA%\5fiq\msconfig.exe'
- '%LOCALAPPDATA%\fsa8valk\displayswitch.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)
