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| Subject: | [Snort-users] OVERSIZE REQUEST-URI DIRECTORY outbound from my network |
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| Date: | Fri, 17 Feb 2006 09:31:55 -0500 |
I admit I'm new at this security evaluation - at least in this detail. I asked a couple of days ago about the OVERSIZE REQUEST-URI DIRECTORY hits I was getting from external to internal networks. I posted the payload and was advised (by Joel I believe) that this is evidence of "typical" virus activity. However, since yesterday I have been seeing this same hit originating on my family box (WinXP) and heading outbound. In two separate views I see within the payload data that makes me think they are legitimate transactions. Below is the latest from this morning and is tied to a use by my daughter of mapquest. I'm gonna scan the heck out of that computer but can someone explain this to me (or better yet - point me to a web reference where I can read and learn some more) about this problem and what it really means? I've searched and simply can't find enough to understand what this is trying to tell me. 000 : 47 45 54 20 2F 3F 65 3D 39 26 47 65 74 4D 61 70 GET /?e=9&GetMap 010 : 44 69 72 65 63 74 3D 47 6D 65 35 64 69 77 25 32 Direct=Gme5diw%2 020 : 63 62 25 33 61 39 75 31 32 25 33 62 25 34 30 25 cb%3a9u12%3b%40% 030 : 32 34 78 75 25 32 64 37 67 31 66 37 32 25 32 36 24xu%2d7g1f72%26 040 : 25 33 64 79 6E 25 32 31 7A 31 35 30 36 37 25 33 %3dyn%21z15067%3 050 : 61 39 36 25 34 30 61 6C 79 32 6E 39 25 34 30 79 a96%40aly2n9%40y 060 : 25 32 36 39 72 37 73 64 34 25 32 34 78 75 72 37 %269r7sd4%24xur7 070 : 6E 25 32 36 75 32 67 75 25 32 63 61 25 33 61 39 n%26u2gu%2ca%3a9 080 : 36 37 32 25 33 62 25 34 30 62 32 30 30 25 32 34 672%3b%40b200%24 090 : 25 33 61 25 32 36 25 34 30 25 32 34 78 75 25 32 %3a%26%40%24xu%2 0a0 : 64 37 61 39 79 37 32 25 32 36 25 33 64 79 6E 25 d7a9y72%26%3dyn% 0b0 : 32 31 7A 7A 73 39 36 37 25 33 61 25 32 36 25 34 21zzs967%3a%26%4 0c0 : 30 32 32 75 36 25 32 61 25 33 61 6C 36 74 78 25 022u6%2a%3al6tx% 0d0 : 32 36 25 34 30 25 32 34 25 33 61 25 32 36 61 37 26%40%24%3a%26a7 0e0 : 25 32 36 75 66 74 67 75 36 25 32 34 25 32 65 35 %26uftgu6%24%2e5 0f0 : 75 25 34 30 67 31 61 32 32 75 25 34 30 25 32 34 u%40g1a22u%40%24 100 : 25 33 61 39 34 74 77 25 33 62 75 25 32 34 6E 64 %3a94tw%3bu%24nd 110 : 7A 37 25 32 36 31 25 32 63 62 73 35 72 25 32 34 z7%261%2cbs5r%24 120 : 25 33 61 25 32 36 75 7A 32 25 32 36 75 7A 32 30 %3a%26uz2%26uz20 130 : 72 38 78 71 25 34 30 32 30 30 25 34 30 25 32 34 r8xq%40200%40%24 140 : 6E 64 77 37 25 32 36 31 25 32 63 79 35 25 32 36 ndw7%261%2cy5%26 150 : 77 25 32 34 78 75 36 74 6E 64 25 34 30 25 35 66 w%24xu6tnd%40%5f 160 : 67 39 7A 7A 73 31 25 34 30 25 35 66 6C 25 32 36 g9zzs1%40%5fl%26 170 : 36 25 32 34 25 32 65 68 25 34 30 25 35 66 77 25 6%24%2eh%40%5fw% 180 : 32 36 25 33 64 61 25 33 61 75 25 34 30 25 35 66 26%3da%3au%40%5f 190 : 30 25 32 36 25 33 64 32 25 33 61 25 32 39 75 7A 0%26%3d2%3a%29uz 1a0 : 25 33 61 25 32 39 79 25 32 34 6E 25 32 36 25 33 %3a%29y%24n%26%3 1b0 : 64 61 25 33 61 67 25 34 30 25 35 66 6E 67 25 34 da%3ag%40%5fng%4 1c0 : 30 61 25 33 61 25 32 39 77 25 32 34 32 25 32 36 0a%3a%29w%242%26 1d0 : 25 33 64 32 25 33 61 71 25 34 30 25 35 66 30 25 %3d2%3aq%40%5f0% 1e0 : 32 36 61 25 32 34 25 32 65 64 25 34 30 74 25 33 26a%24%2ed%40t%3 1f0 : 61 25 32 39 75 37 25 33 61 39 25 34 30 25 35 66 a%29u7%3a9%40%5f 200 : 6C 25 32 36 61 74 25 33 61 25 32 39 34 31 25 33 l%26at%3a%2941%3 210 : 61 39 25 34 30 25 35 66 78 25 32 36 75 25 32 34 a9%40%5fx%26u%24 220 : 25 32 65 31 25 34 30 62 25 33 61 25 32 39 66 25 %2e1%40b%3a%29f% 230 : 32 34 6C 25 32 36 25 33 64 32 6C 25 32 36 36 25 24l%26%3d2l%266% 240 : 32 34 25 32 65 39 36 25 32 34 32 25 32 36 25 33 24%2e96%242%26%3 250 : 64 32 25 33 61 6C 25 34 30 25 35 66 73 75 25 34 d2%3al%40%5fsu%4 260 : 30 37 25 33 61 25 32 39 77 25 32 34 6E 25 32 36 07%3a%29w%24n%26 270 : 25 33 64 79 25 33 61 39 25 34 30 25 35 66 6E 75 %3dy%3a9%40%5fnu 280 : 25 34 30 37 25 33 61 25 32 39 30 25 32 34 6E 25 %407%3a%290%24n% 290 : 32 36 25 33 64 32 78 25 32 36 61 25 32 34 25 32 26%3d2x%26a%24%2 2a0 : 65 6C 61 25 32 34 32 25 32 36 25 33 64 32 25 33 ela%242%26%3d2%3 2b0 : 61 31 25 34 30 25 35 66 6E 67 25 34 30 37 25 33 a1%40%5fng%407%3 2c0 : 61 25 32 39 61 25 32 34 6E 25 32 36 25 33 64 32 a%29a%24n%26%3d2 2d0 : 6E 25 32 36 36 25 32 34 25 32 65 31 25 34 30 72 n%266%24%2e1%40r 2e0 : 25 33 61 25 32 39 61 74 25 33 61 75 25 34 30 25 %3a%29at%3au%40% 2f0 : 35 66 6E 25 32 36 61 25 32 34 25 32 65 31 34 25 5fn%26a%24%2e14% 300 : 32 34 32 25 32 36 25 33 64 62 25 33 61 31 25 34 242%26%3db%3a1%4 310 : 30 25 35 66 6E 68 25 34 30 37 25 33 61 25 32 39 0%5fnh%407%3a%29 320 : 75 25 32 34 6E 25 32 36 25 33 64 32 32 25 32 36 u%24n%26%3d22%26 330 : 30 25 32 34 25 32 65 30 25 34 30 38 25 33 61 25 0%24%2e0%408%3a% 340 : 32 39 75 37 25 33 61 6C 25 34 30 25 35 66 30 25 29u7%3al%40%5f0% 350 : 32 36 30 25 32 34 25 32 65 39 25 34 30 32 25 33 260%24%2e9%402%3 360 : 61 25 32 39 75 25 32 34 67 25 32 36 25 33 64 74 a%29u%24g%26%3dt 370 : 25 33 61 64 25 34 30 25 35 66 6C 25 32 36 77 25 %3ad%40%5fl%26w% 380 : 32 34 25 32 65 39 25 34 30 32 32 25 32 36 25 33 24%2e9%4022%26%3 390 : 64 32 25 33 61 39 25 34 30 37 25 33 61 31 25 34 d2%3a9%407%3a1%4 3a0 : 30 37 25 33 61 39 75 25 32 34 25 32 65 39 25 34 07%3a9u%24%2e9%4 3b0 : 30 32 6E 25 32 36 36 25 32 34 6E 30 25 34 30 37 02n%266%24n0%407 3c0 : 25 33 61 31 36 25 32 34 32 25 32 36 30 25 32 34 %3a16%242%260%24 3d0 : 32 25 32 36 75 7A 25 33 61 25 32 39 75 25 32 34 2%26uz%3a%29u%24 3e0 : 6E 71 25 34 30 37 25 33 61 31 25 34 30 37 25 33 nq%407%3a1%407%3 3f0 : 61 6C 77 25 32 34 32 25 32 36 75 25 32 34 32 25 alw%242%26u%242% 400 : 32 36 75 32 25 33 61 25 32 39 75 25 32 34 6C 25 26u2%3a%29u%24l% 410 : 32 36 36 25 32 34 6E 6C 25 34 30 37 25 33 61 25 266%24nl%407%3a% 420 : 32 39 61 25 32 34 25 32 65 64 25 34 30 25 35 66 29a%24%2ed%40%5f 430 : 6E 25 32 36 25 33 64 62 25 33 61 75 25 34 30 25 n%26%3db%3au%40% 440 : 35 66 6E 25 32 36 25 33 64 32 25 33 61 25 32 39 5fn%26%3d2%3a%29 450 : 30 25 32 34 25 32 65 39 25 34 30 25 35 66 77 25 0%24%2e9%40%5fw% 460 : 32 36 36 25 32 34 25 32 65 39 25 34 30 37 25 33 266%24%2e9%407%3 470 : 61 25 32 39 30 25 32 34 32 25 32 36 25 33 64 7A a%290%242%26%3dz 480 : 25 33 61 75 25 34 30 25 35 66 6C 25 32 36 36 25 %3au%40%5fl%266% 490 : 32 34 25 32 65 39 30 25 32 34 32 25 32 36 25 33 24%2e90%242%26%3 4a0 : 64 61 25 33 61 25 32 39 75 25 32 34 25 32 65 71 da%3a%29u%24%2eq 4b0 : 7A 25 32 34 32 25 32 36 25 33 64 62 25 33 61 75 z%242%26%3db%3au 4c0 : 25 34 30 25 35 66 6C 31 25 34 30 37 25 33 61 25 %40%5fl1%407%3a% 4d0 : 32 39 30 25 32 34 32 25 32 36 25 33 64 61 78 25 290%242%26%3dax% 4e0 : 32 36 75 72 25 33 61 25 32 39 75 25 32 34 32 25 26ur%3a%29u%242% 4f0 : 32 36 7A 25 32 34 6C 25 32 36 30 25 32 34 6C 25 26z%24l%260%24l% 500 : 32 36 36 25 32 34 6E 64 34 37 25 37 63 75 25 34 266%24nd47%7cu%4 510 : 30 32 35 75 36 25 34 30 6C 25 33 62 25 34 30 7A 025u6%40l%3b%40z 520 : 61 75 61 25 32 34 25 33 61 20 48 54 54 50 2F 31 aua%24%3a HTTP/1 530 : 2E 31 0D 0A 41 63 63 65 70 74 3A 20 2A 2F 2A 0D .1..Accept: */*. 540 : 0A 52 65 66 65 72 65 72 3A 20 68 74 74 70 3A 2F .Referer: http:/ 550 : 2F 77 77 77 2E 6D 61 70 71 75 65 73 74 2E 63 6F /www.mapquest.co 560 : 6D 2F 64 69 72 65 63 74 69 6F 6E 73 2F 6D 61 69 m/directions/mai 570 : 6E 2E 61 64 70 3F 67 6F 3D 31 26 64 6F 3D 6E 77 n.adp?go=1&do=nw 580 : 26 72 6D 6D 3D 31 26 31 67 69 3D 30 26 75 6E 3D &rmm=1&1gi=0&un= 590 : 6D 26 31 64 61 3D 2D 31 2E 30 30 30 30 30 30 26 m&1da=-1.000000& 5a0 : 31 72 63 3D 4C 31 41 41 41 26 63 6C 3D 45 4E 26 1rc=L1AAA&cl=EN& 5b0 : 63 74 3D 4E ct=N -- Don - Powered by Debian Linux - ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. 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