hcorecore \u7684 WireShark \u8fc7\u6ee4\u8bed\u6cd5
\n\/* WireShark \u8fc7\u6ee4\u8bed\u6cd5 *\/
\n1.
\n\u8fc7\u6ee4IP\uff0c\u5982\u6765\u6e90IP\u6216\u8005\u76ee\u6807IP\u7b49\u4e8e\u67d0\u4e2aIP
\n\u4f8b\u5b50:
\nip.src eq 192.168.1.107 or ip.dst eq 192.168.1.107
\n\u6216\u8005
\nip.addr eq 192.168.1.107 \/\/ \u90fd\u80fd\u663e\u793a\u6765\u6e90IP\u548c\u76ee\u6807IP
\n2.
\n\u8fc7\u6ee4\u7aef\u53e3
\n\u4f8b\u5b50:
\ntcp.port eq 80 \/\/ \u4e0d\u7ba1\u7aef\u53e3\u662f\u6765\u6e90\u7684\u8fd8\u662f\u76ee\u6807\u7684\u90fd\u663e\u793a
\ntcp.port == 80
\ntcp.port eq 2722
\ntcp.port eq 80 or udp.port eq 80
\ntcp.dstport == 80 \/\/ \u53ea\u663etcp\u534f\u8bae\u7684\u76ee\u6807\u7aef\u53e380
\ntcp.srcport == 80 \/\/ \u53ea\u663etcp\u534f\u8bae\u7684\u6765\u6e90\u7aef\u53e380
\nudp.port eq 15000
\n\u8fc7\u6ee4\u7aef\u53e3\u8303\u56f4
\ntcp.port >= 1 and tcp.port <= 80
\n3.
\n\u8fc7\u6ee4\u534f\u8bae
\n\u4f8b\u5b50:
\ntcp
\nudp
\narp
\nicmp
\nhttp
\nsmtp
\nftp
\ndns
\nmsnms
\nip
\nssl
\noicq
\nbootp
\n\u7b49\u7b49
\n\u6392\u9664arp\u5305\uff0c\u5982!arp \u6216\u8005 not arp
\n4.
\n\u8fc7\u6ee4MAC
\n\u592a\u4ee5\u7f51\u5934\u8fc7\u6ee4
\neth.dst == A0:00:00:04:C5:84 \/\/ \u8fc7\u6ee4\u76ee\u6807mac
\neth.src eq A0:00:00:04:C5:84 \/\/ \u8fc7\u6ee4\u6765\u6e90mac
\neth.dst==A0:00:00:04:C5:84
\neth.dst==A0-00-00-04-C5-84
\neth.addr eq A0:00:00:04:C5:84 \/\/ \u8fc7\u6ee4\u6765\u6e90MAC\u548c\u76ee\u6807MAC\u90fd\u7b49\u4e8eA0:00:00:04:C5:84\u7684
\nless than \u5c0f\u4e8e < lt
\n\u5c0f\u4e8e\u7b49\u4e8e le
\n\u7b49\u4e8e eq
\n\u5927\u4e8e gt
\n\u5927\u4e8e\u7b49\u4e8e ge
\n\u4e0d\u7b49 ne
\n5.
\n\u5305\u957f\u5ea6\u8fc7\u6ee4
\n\u4f8b\u5b50:
\nudp.length == 26 \u8fd9\u4e2a\u957f\u5ea6\u662f\u6307udp\u672c\u8eab\u56fa\u5b9a\u957f\u5ea68\u52a0\u4e0audp\u4e0b\u9762\u90a3\u5757\u6570\u636e\u5305\u4e4b\u548c
\ntcp.len >= 7 \u6307\u7684\u662fip\u6570\u636e\u5305(tcp\u4e0b\u9762\u90a3\u5757\u6570\u636e),\u4e0d\u5305\u62ectcp\u672c\u8eab
\nip.len == 94 \u9664\u4e86\u4ee5\u592a\u7f51\u5934\u56fa\u5b9a\u957f\u5ea614,\u5176\u5b83\u90fd\u7b97\u662fip.len,\u5373\u4eceip\u672c\u8eab\u5230\u6700\u540e
\nframe.len == 119 \u6574\u4e2a\u6570\u636e\u5305\u957f\u5ea6,\u4eceeth\u5f00\u59cb\u5230\u6700\u540e
\neth —> ip or arp —> tcp or udp —> data
\n6.
\nhttp\u6a21\u5f0f\u8fc7\u6ee4
\n\u4f8b\u5b50:
\nhttp.request.method == "GET"
\nhttp.request.method == "POST"
\nhttp.request.uri == "\/img\/logo-edu.gif"
\nhttp contains "GET"
\nhttp contains "HTTP\/1."
\n\/\/ GET\u5305
\nhttp.request.method == "GET" && http contains "Host: "
\nhttp.request.method == "GET" && http contains "User-Agent: "
\n\/\/ POST\u5305
\nhttp.request.method == "POST" && http contains "Host: "
\nhttp.request.method == "POST" && http contains "User-Agent: "
\n\/\/ \u54cd\u5e94\u5305
\nhttp contains "HTTP\/1.1 200 OK" && http contains "Content-Type: "
\nhttp contains "HTTP\/1.0 200 OK" && http contains "Content-Type: "
\n\u4e00\u5b9a\u5305\u542b\u5982\u4e0b
\nContent-Type:
\n7.
\nTCP\u53c2\u6570\u8fc7\u6ee4
\ntcp.flags \u663e\u793a\u5305\u542bTCP\u6807\u5fd7\u7684\u5c01\u5305\u3002
\ntcp.flags.syn == 0x02 \u663e\u793a\u5305\u542bTCP SYN\u6807\u5fd7\u7684\u5c01\u5305\u3002
\ntcp.window_size == 0 && tcp.flags.reset != 1
\n8.
\n\u8fc7\u6ee4\u5185\u5bb9
\ntcp[20]\u8868\u793a\u4ece20\u5f00\u59cb\uff0c\u53d61\u4e2a\u5b57\u7b26
\ntcp[20:]\u8868\u793a\u4ece20\u5f00\u59cb\uff0c\u53d61\u4e2a\u5b57\u7b26\u4ee5\u4e0a
\ntcp[20:8]\u8868\u793a\u4ece20\u5f00\u59cb\uff0c\u53d68\u4e2a\u5b57\u7b26
\ntcp[offset,n]
\nudp[8:3]==81:60:03 \/\/ \u504f\u79fb8\u4e2abytes,\u518d\u53d63\u4e2a\u6570\uff0c\u662f\u5426\u4e0e==\u540e\u9762\u7684\u6570\u636e\u76f8\u7b49\uff1f
\nudp[8:1]==32 \u5982\u679c\u6211\u731c\u7684\u6ca1\u6709\u9519\u7684\u8bdd\uff0c\u5e94\u8be5\u662fudp[offset:\u622a\u53d6\u4e2a\u6570]=nValue
\neth.addr[0:3]==00:06:5B
\n\u4f8b\u5b50:
\n\u5224\u65adupd\u4e0b\u9762\u90a3\u5757\u6570\u636e\u5305\u524d\u4e09\u4e2a\u662f\u5426\u7b49\u4e8e0x20 0x21 0x22
\n\u6211\u4eec\u90fd\u77e5\u9053udp\u56fa\u5b9a\u957f\u5ea6\u4e3a8
\nudp[8:3]==20:21:22
\n\u5224\u65adtcp\u90a3\u5757\u6570\u636e\u5305\u524d\u4e09\u4e2a\u662f\u5426\u7b49\u4e8e0x20 0x21 0x22
\ntcp\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u957f\u5ea6\u4e3a20,\u4f46\u4e5f\u6709\u4e0d\u662f20\u7684\u65f6\u5019
\ntcp[8:3]==20:21:22
\n\u5982\u679c\u60f3\u5f97\u5230\u6700\u51c6\u786e\u7684\uff0c\u5e94\u8be5\u5148\u77e5\u9053tcp\u957f\u5ea6
\nmatches(\u5339\u914d)\u548ccontains(\u5305\u542b\u67d0\u5b57\u7b26\u4e32)\u8bed\u6cd5
\nip.src==192.168.1.107 and udp[8:5] matches "\\\\x02\\\\x12\\\\x21\\\\x00\\\\x22"
\nip.src==192.168.1.107 and udp contains 02:12:21:00:22
\nip.src==192.168.1.107 and tcp contains "GET"
\nudp contains 7c:7c:7d:7d \u5339\u914dpayload\u4e2d\u542b\u67090x7c7c7d7d\u7684UDP\u6570\u636e\u5305\uff0c\u4e0d\u4e00\u5b9a\u662f\u4ece\u7b2c\u4e00\u5b57\u8282\u5339\u914d\u3002
\n\u4f8b\u5b50:
\n\u5f97\u5230\u672c\u5730qq\u767b\u9646\u6570\u636e\u5305(\u5224\u65ad\u6761\u4ef6\u662f\u7b2c\u4e00\u4e2a\u5305==0x02,\u7b2c\u56db\u548c\u7b2c\u4e94\u4e2a\u5305\u7b49\u4e8e0x00x22,\u6700\u540e\u4e00\u4e2a\u5305\u7b49\u4e8e0x03)
\n0x02 xx xx 0x00 0x22 … 0x03
\n\u6b63\u786e
\noicq and udp[8:] matches "^\\\\x02[\\\\x00-\\\\xff][\\\\x00-\\\\xff]\\\\x00\\\\x22[\\\\x00-\\\\xff]+\\\\x03$"
\noicq and udp[8:] matches "^\\\\x02[\\\\x00-\\\\xff]{2}\\\\x00\\\\x22[\\\\x00-\\\\xff]+\\\\x03$" \/\/ \u767b\u9646\u5305
\noicq and (udp[8:] matches "^\\\\x02[\\\\x00-\\\\xff]{2}\\\\x03$" or tcp[8:] matches "^\\\\x02[\\\\x00-\\\\xff]{2}\\\\x03$")
\noicq and (udp[8:] matches "^\\\\x02[\\\\x00-\\\\xff]{2}\\\\x00\\\\x22[\\\\x00-\\\\xff]+\\\\x03$" or tcp[20:] matches "^\\\\x02[\\\\x00-\\\\xff]{2}\\\\x00\\\\x22[\\\\x00-\\\\xff]+\\\\x03$")
\n\u4e0d\u5355\u5355\u662f00:22\u624d\u6709QQ\u53f7\u7801,\u5176\u5b83\u7684\u5305\u4e5f\u6709,\u8981\u6ee1\u8db3\u4e0b\u9762\u6761\u4ef6(tcp\u4e5f\u6709\uff0c\u4f46\u6ca1\u6709\u505a):
\noicq and udp[8:] matches "^\\\\x02[\\\\x00-\\\\xff]+\\\\x03$" and !(udp[11:2]==00:00) and !(udp[11:2]==00:80)
\noicq and udp[8:] matches "^\\\\x02[\\\\x00-\\\\xff]+\\\\x03$" and !(udp[11:2]==00:00) and !(udp[15:4]==00:00:00:00)
\n\u8bf4\u660e:
\nudp[15:4]==00:00:00:00 \u8868\u793aQQ\u53f7\u7801\u4e3a\u7a7a
\nudp[11:2]==00:00 \u8868\u793a\u547d\u4ee4\u7f16\u53f7\u4e3a00:00
\nudp[11:2]==00:80 \u8868\u793a\u547d\u4ee4\u7f16\u53f7\u4e3a00:80
\n\u5f53\u547d\u4ee4\u7f16\u53f7\u4e3a00:80\u65f6\uff0cQQ\u53f7\u7801\u4e3a00:00:00:00
\n\u5f97\u5230msn\u767b\u9646\u6210\u529f\u8d26\u53f7(\u5224\u65ad\u6761\u4ef6\u662f"USR 7 OK ",\u5373\u524d\u4e09\u4e2a\u7b49\u4e8eUSR\uff0c\u518d\u901a\u8fc7\u4e24\u4e2a0x20\uff0c\u5c31\u5230OK,OK\u540e\u9762\u662f\u4e00\u4e2a\u5b57\u7b260x20,\u540e\u9762\u5c31\u662fmail\u4e86)
\nUSR xx OK mail@hotmail.com
\n\u6b63\u786e
\nmsnms and tcp and ip.addr==192.168.1.107 and tcp[20:] matches "^USR\\\\x20[\\\\x30-\\\\x39]+\\\\x20OK\\\\x20[\\\\x00-\\\\xff]+"
\n9.
\ndns\u6a21\u5f0f\u8fc7\u6ee4
\n10.
\nDHCP
\n\u4ee5\u5bfb\u627e\u4f2a\u9020DHCP\u670d\u52a1\u5668\u4e3a\u4f8b\uff0c\u4ecb\u7ecdWireshark\u7684\u7528\u6cd5\u3002\u5728\u663e\u793a\u8fc7\u6ee4\u5668\u4e2d\u52a0\u5165\u8fc7\u6ee4\u89c4\u5219\uff0c
\n\u663e\u793a\u6240\u6709\u975e\u6765\u81eaDHCP\u670d\u52a1\u5668\u5e76\u4e14bootp.type==0x02\uff08Offer\/Ack\uff09\u7684\u4fe1\u606f\uff1a
\nbootp.type==0x02 and not ip.src==192.168.1.1
\n11.
\nmsn
\nmsnms && tcp[23:1] == 20 \/\/ \u7b2c\u56db\u4e2a\u662f0x20\u7684msn\u6570\u636e\u5305
\nmsnms && tcp[20:1] >= 41 && tcp[20:1] <= 5A && tcp[21:1] >= 41 && tcp[21:1] <= 5A && tcp[22:1] >= 41 && tcp[22:1] <= 5A
\nmsnms && tcp[20:3]=="USR" \/\/ \u627e\u5230\u547d\u4ee4\u7f16\u7801\u662fUSR\u7684\u6570\u636e\u5305
\nmsnms && tcp[20:3]=="MSG" \/\/ \u627e\u5230\u547d\u4ee4\u7f16\u7801\u662fMSG\u7684\u6570\u636e\u5305
\ntcp.port == 1863 || tcp.port == 80
\n\u5982\u4f55\u5224\u65ad\u6570\u636e\u5305\u662f\u542b\u6709\u547d\u4ee4\u7f16\u7801\u7684MSN\u6570\u636e\u5305?
\n1)\u7aef\u53e3\u4e3a1863\u6216\u800580,\u5982:tcp.port == 1863 || tcp.port == 80
\n2)\u6570\u636e\u8fd9\u6bb5\u524d\u4e09\u4e2a\u662f\u5927\u5199\u5b57\u6bcd,\u5982:
\ntcp[20:1] >= 41 && tcp[20:1] <= 5A && tcp[21:1] >= 41 && tcp[21:1] <= 5A && tcp[22:1] >= 41 && tcp[22:1] <= 5A
\n3)\u7b2c\u56db\u4e2a\u4e3a0x20,\u5982:tcp[23:1] == 20
\n4)msn\u662f\u5c5e\u4e8eTCP\u534f\u8bae\u7684,\u5982tcp<\/p>\n","protected":false},"excerpt":{"rendered":"
hcorecore \u7684 WireShark \u8fc7\u6ee4\u8bed\u6cd5 \/* WireShark \u8fc7\u6ee4\u8bed\u6cd5 *\/ 1. \u8fc7\u6ee4IP […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[179],"tags":[208],"_links":{"self":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts\/112"}],"collection":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=112"}],"version-history":[{"count":1,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts\/112\/revisions"}],"predecessor-version":[{"id":214,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=\/wp\/v2\/posts\/112\/revisions\/214"}],"wp:attachment":[{"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=112"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.huike007.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}