Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Jcfrepsryprglm' = '%APPDATA%\rz9j\VaultSysUi.exe'
Creates or modifies the following files
- %APPDATA%\Microsoft\windows\Start Menu\programs\startup\jcfrepsryprglm.lnk
- <SYSTEM32>\tasks\gfudvghvad
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>\vaultsysui.exe
- <SYSTEM32>\msfeedssync.exe
the following user processes:
- firefox.exe
- iexplore.exe
Reads files which store third party applications passwords
- %HOMEPATH%\desktop\4f0bf7ff71f28.jpeg
- %HOMEPATH%\desktop\ovp25012015.doc
Modifies file system
Creates the following files
- %TEMP%\cc422.tmp
- %TEMP%\lzin.cmd
- %APPDATA%\rz9j\vaultsysui.exe
- %TEMP%\j16f6ac.tmp
- %TEMP%\q4fd7f.cmd
- <SYSTEM32>\6bpf\msfeedssync.exe
Deletes the following files
- %TEMP%\lzin.cmd
- %TEMP%\q4fd7f.cmd
Moves the following files
- from %TEMP%\cc422.tmp to %APPDATA%\rz9j\credui.dll
- from %TEMP%\j16f6ac.tmp to <SYSTEM32>\6bpf\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>\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)
- '<SYSTEM32>\cmd.exe' /c %TEMP%\lZIn.cmd' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c %TEMP%\Q4Fd7f.cmd' (with hidden window)
- '<SYSTEM32>\schtasks.exe' /Create /F /TN "Gfudvghvad" /TR <SYSTEM32>\6Bpf\msfeedssync.exe /SC minute /MO 60 /RL highest' (with hidden window)
Executes the following
- '<SYSTEM32>\cmd.exe' /c %TEMP%\lZIn.cmd
- '<SYSTEM32>\cmd.exe' /c %TEMP%\Q4Fd7f.cmd
- '<SYSTEM32>\schtasks.exe' /Create /F /TN "Gfudvghvad" /TR <SYSTEM32>\6Bpf\msfeedssync.exe /SC minute /MO 60 /RL highest
- '<SYSTEM32>\schtasks.exe' /Query /TN "Gfudvghvad"
