Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Cpzuqitfcqmzfvv' = '"%APPDATA%\LrVs\fveprompt.exe"'
- [<HKCU>\Software\Classes\MSCFile\shell\open\command] '' = '<SYSTEM32>\cmd.exe /c %TEMP%\LyHz.cmd'
Creates or modifies the following files
- %APPDATA%\Microsoft\windows\Start Menu\programs\startup\cpzuqitfcqmzfvv.lnk
- <SYSTEM32>\tasks\bfbxtakpqcg
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>\fveprompt.exe
- <SYSTEM32>\pcaui.exe
- <SYSTEM32>\ntprint.exe
- <SYSTEM32>\regsvr32.exe
- <SYSTEM32>\cmdl32.exe
- <SYSTEM32>\atbroker.exe
- <SYSTEM32>\ocsetup.exe
- <SYSTEM32>\mpnotify.exe
- <SYSTEM32>\netplwiz.exe
the following user processes:
- firefox.exe
- iexplore.exe
Modifies file system
Creates the following files
- %TEMP%\tq1bc7.tmp
- %TEMP%\ao3j.cmd
- %APPDATA%\lrvs\fveprompt.exe
- %TEMP%\rjv2648.tmp
- %TEMP%\mlcr.cmd
- <SYSTEM32>\0306\netplwiz.exe
- %TEMP%\lyhz.cmd
Deletes the following files
- %TEMP%\ao3j.cmd
- %TEMP%\mlcr.cmd
- %TEMP%\lyhz.cmd
Moves the following files
- from %TEMP%\tq1bc7.tmp to %APPDATA%\lrvs\slc.dll
- from %TEMP%\rjv2648.tmp to <SYSTEM32>\0306\netplwiz.dll
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
- '<SYSTEM32>\cmd.exe' /c netsh 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)
- '<SYSTEM32>\cmd.exe' /c %TEMP%\AO3J.cmd' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks.exe /Delete /F /TN "User_Feed_Synchronization-{04d2cab4-cb83-f1a1-bf76-dde7802b1dc9}"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c %TEMP%\MlCr.cmd' (with hidden window)
- '<SYSTEM32>\eventvwr.exe' ' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c %TEMP%\LyHz.cmd' (with hidden window)
Executes the following
- '<SYSTEM32>\cmd.exe' /c netsh advfirewall firewall add rule name="Core Networking - Multicast Listener Done (ICMPv4-In)" program="%WINDIR%\Explorer.EXE" dir=in action=allow protocol=TCP localport=any
- '<SYSTEM32>\cmd.exe' /c %TEMP%\AO3J.cmd
- '<SYSTEM32>\cmd.exe' /c schtasks.exe /Delete /F /TN "User_Feed_Synchronization-{04d2cab4-cb83-f1a1-bf76-dde7802b1dc9}"
- '<SYSTEM32>\schtasks.exe' /Delete /F /TN "User_Feed_Synchronization-{04d2cab4-cb83-f1a1-bf76-dde7802b1dc9}"
- '<SYSTEM32>\cmd.exe' /c %TEMP%\MlCr.cmd
- '<SYSTEM32>\eventvwr.exe'
- '<SYSTEM32>\cmd.exe' /c %TEMP%\LyHz.cmd
- '<SYSTEM32>\schtasks.exe' /Create /F /TN "Bfbxtakpqcg" /SC minute /MO 60 /TR "<SYSTEM32>\0306\Netplwiz.exe" /RL highest
