36 lines
678 B
Ruby
36 lines
678 B
Ruby
# -*- coding: binary -*-
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require 'msf/core'
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module Msf::Payload::Dalvik
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#
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# Fix the dex header checksum and signature
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# http://source.android.com/tech/dalvik/dex-format.html
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#
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def fix_dex_header(dexfile)
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dexfile = dexfile.unpack('a8LH40a*')
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dexfile[2] = Digest::SHA1.hexdigest(dexfile[3])
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dexfile[1] = Zlib.adler32(dexfile[2..-1].pack('H40a*'))
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dexfile.pack('a8LH40a*')
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end
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#
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# We could compile the .class files with dx here
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#
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def generate_stage
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end
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#
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# Used by stagers to construct the payload jar file as a String
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#
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def generate
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generate_jar.pack
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end
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def java_string(str)
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[str.length].pack("N") + str
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end
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end
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