Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Upvowmqicbkhcpx' = '"%APPDATA%\nHlDwnK\dccw.exe"'
- [<HKCU>\Software\Classes\MSCFile\shell\open\command] '' = '<SYSTEM32>\cmd.exe /c %TEMP%\56j.cmd'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\upvowmqicbkhcpx.lnk
- <SYSTEM32>\tasks\nzcqgerajycazug
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>\deviceproperties.exe
- <SYSTEM32>\winver.exe
- <SYSTEM32>\cleanmgr.exe
- <SYSTEM32>\wudfhost.exe
- <SYSTEM32>\dccw.exe
- <SYSTEM32>\cmmon32.exe
- <SYSTEM32>\dvdplay.exe
- <SYSTEM32>\msfeedssync.exe
the following user processes:
- firefox.exe
- iexplore.exe
Reads files which store third party applications passwords
- %HOMEPATH%\desktop\hanni_umami_chapter.doc
- %HOMEPATH%\desktop\508softwareandos.doc
Modifies file system
Creates the following files
- %TEMP%\zeca4.tmp
- %TEMP%\bfvmbc.cmd
- %APPDATA%\nhldwnk\dccw.exe
- %TEMP%\nfbf7.tmp
- %TEMP%\uh4hui.cmd
- <SYSTEM32>\5179\msfeedssync.exe
- %TEMP%\56j.cmd
Deletes the following files
- %TEMP%\bfvmbc.cmd
- %TEMP%\uh4hui.cmd
- %TEMP%\56j.cmd
Moves the following files
- from %TEMP%\zeca4.tmp to %APPDATA%\nhldwnk\dxva2.dll
- from %TEMP%\nfbf7.tmp to <SYSTEM32>\5179\version.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%\bFVmbC.cmd' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks.exe /Delete /F /TN "User_Feed_Synchronization-{2059221d-28a1-da5a-4d07-6597ed5e3c5b}"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c %TEMP%\uh4hui.cmd' (with hidden window)
- '<SYSTEM32>\eventvwr.exe' ' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c %TEMP%\56j.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%\bFVmbC.cmd
- '<SYSTEM32>\cmd.exe' /c schtasks.exe /Delete /F /TN "User_Feed_Synchronization-{2059221d-28a1-da5a-4d07-6597ed5e3c5b}"
- '<SYSTEM32>\schtasks.exe' /Delete /F /TN "User_Feed_Synchronization-{2059221d-28a1-da5a-4d07-6597ed5e3c5b}"
- '<SYSTEM32>\cmd.exe' /c %TEMP%\uh4hui.cmd
- '<SYSTEM32>\eventvwr.exe'
- '<SYSTEM32>\cmd.exe' /c %TEMP%\56j.cmd
- '<SYSTEM32>\schtasks.exe' /Create /F /TN "Nzcqgerajycazug" /SC minute /MO 60 /TR "<SYSTEM32>\5179\msfeedssync.exe" /RL highest
