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- # AIM - AOL instant messenger (OSCAR and TOC)
- # Pattern quality: good notsofast
- # Usually runs on port 5190
- #
- # This may also match ICQ traffic.
- #
- # This pattern has been tested and is believed to work well. If it does not
- # work for you, or you believe it could be improved, please post to
- # l7-filter-developers@lists.sf.net . This list may be subscribed to at
- # http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
- aim
- # See http://gridley.acns.carleton.edu/~straitm/final (and various other places)
- # The first bit matches OSCAR signon and data commands, but not sure what
- # \x03\x0b matches, but it works apparently.
- # The next three bits match various parts of the TOC signon process.
- # The third one is the magic number "*", then 0x01 for "signon", then up to four
- # bytes ("up to" because l7-filter strips out nulls) which contain a sequence
- # number (2 bytes) the data length (2 more) and 3 nulls (which don't count),
- # then 0x01 for the version number (not sure if there ever has been another
- # version)
- # The fourth one is a command string, followed by some stuff, then the
- # beginning of the "roasted" password
- # This pattern is too slow!
- ^(\*[\x01\x02].*\x03\x0b|\*\x01.?.?.?.?\x01)|flapon|toc_signon.*0x
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