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module Rex
module Proto
module SMB
class Evasions
require 'rex/text'
EVASION_NONE = 0
EVASION_LOW = 1
EVASION_HIGH = 2
EVASION_MAX = 3
# Add bogus filler at the end of the SMB packet and before the data
def self.make_offset_filler(level, max_size = 60000, min_size = 512)
if (max_size < 0)
max_size = 4096
end
if (min_size < max_size)
min_size = max_size - 1
end
case level.to_i
when EVASION_LOW
Rex::Text.rand_text(32)
when EVASION_HIGH
Rex::Text.rand_text( rand(max_size - min_size) + min_size )
when EVASION_MAX
Rex::Text.rand_text( rand(max_size) )
else EVASION_NONE
return ''
end
end
# Obscures a named pipe pathname via leading and trailing slashes
def self.make_named_pipe_path(level, pipe)
case level.to_i
when EVASION_LOW
return ('\\' * (1024 + rand(512))) + pipe
when EVASION_HIGH, EVASION_MAX
return ('\\' * (1024 + rand(512))) + pipe + ('\\' * (1024 + rand(512)))
else
return '\\' + pipe
end
end
# Obscures the TransactNamedPipe \PIPE\ string
def self.make_trans_named_pipe_name(level)
case level.to_i
when EVASION_LOW
return ('\\' * (256 - rand(64)) + 'PIPE\\')
when EVASION_HIGH
return Rex::Text.rand_text(512 - rand(128))
when EVASION_MAX
return Rex::Text.rand_text(1024 - rand(256))
else
return '\\PIPE\\'
end
end
end
end
end
end
Version data entries
41 entries across 41 versions & 1 rubygems