1 #!/usr/bin/env python
 2 
 3 import sys
 4 import os
 5 
 6 DataFileName = "usb.dat"
 7 
 8 presses = []
 9 
10 normalKeys = {"04":"a", "05":"b", "06":"c", "07":"d", "08":"e", "09":"f", "0a":"g", "0b":"h", "0c":"i", "0d":"j", "0e":"k", "0f":"l", "10":"m", "11":"n", "12":"o", "13":"p", "14":"q", "15
 
":"r", "16":"s", "17":"t", "18":"u", "19":"v", "1a":"w", "1b":"x", "1c":"y", "1d":"z","1e":"1", "1f":"2", "20":"3", "21":"4", "22":"5", "23":"6","24":"7","25":"8","26":"9","27":"0","28":"<RET>","29":"<ESC>","2a":"<DEL>", "2b":"\t","2c":"<SPACE>","2d":"-","2e":"=","2f":"[","30":"
 
]","31":"\\","32":"<NON>","33":";","34":"'","35":"<GA>","36":",","37":".","38":"/","39":"<CAP>","3a":"<F1>","3b":"<F2>", "3c":"<F3>","3d":"<F4>","3e":"<F5>","3f":"<F6>","40":"<F7>","41":"<F8>","42":"<F9>","43":"<F10>","44":"<F11>
 
","45":"<F12>"}
11 
12 shiftKeys = {"04":"A", "05":"B", "06":"C", "07":"D", "08":"E", "09":"F", "0a":"G", "0b":"H", "0c":"I", "0d":"J", "0e":"K", "0f":"L", "10":"M", "11":"N", "12":"O", "13":"P", "14":"Q", "15":"R", "16":"S", "17":"T", "18":"U", "19":"V", "1a":"W", "1b":"X", "1c":"Y", "1d":"Z","1e":"!", "1f":"@", "20":"#", "21":"$", "22":"%", "23":"^","24":"&","25":"*","26":"(","27":")","28":"<RET>","29":"<ESC>","2a":"<DEL>", "2b":"\t","2c":"<SPACE>","2d":"_","2e":"+","2f":"{","30":"}","31":"|","32":"<NON>","33":"\"","34":":","35":"<GA>","36":"<","37":">","38":"?","39":"<CAP>","3a":"<F1>","3b":"<F2>", "3c":"<F3>","3d":"<F4>","3e":"<F5>","3f":"<F6>","40":"<F7>","41":"<F8>","42":"<F9>","43":"<F10>","44":"<F11>","45":"<F12>"}
13 
14 def main():
15     # check argv
16     if len(sys.argv) != 2:
17         print("Usage : ")
18         print("        python UsbKeyboardHacker.py data.pcap")
19         print("Tips : ")
20         print("        To use this python script , you must install the tshark first.")
21         print("        You can use `sudo apt-get install tshark` to install it")
22         print("Author : ")
23         print("        WangYihang <[email protected]>")
24         print("        If you have any questions , please contact me by email.")
25         print("        Thank you for using.")
26         exit(1)
27 
28     # get argv
29     pcapFilePath = sys.argv[1]
30     
31     # get data of pcap
32     os.system("tshark -r %s -T fields -e usb.capdata 'usb.data_len == 8' > %s" % (pcapFilePath, DataFileName))
33 
34     # read data
35     with open(DataFileName, "r") as f:
36         for line in f:
37             presses.append(line[0:-1])
38     # handle
39     result = ""
40     for press in presses:
41         if press == '':
42             continue
43         if ':' in press:
44             Bytes = press.split(":")
45         else:
46             Bytes = [press[i:i+2] for i in range(0, len(press), 2)]
47         if Bytes[0] == "00":
48             if Bytes[2] != "00" and normalKeys.get(Bytes[2]):
49                 result += normalKeys[Bytes[2]]
50         elif int(Bytes[0],16) & 0b10 or int(Bytes[0],16) & 0b100000: # shift key is pressed.
51             if Bytes[2] != "00" and normalKeys.get(Bytes[2]):
52                 result += shiftKeys[Bytes[2]]
53         else:
54             print("[-] Unknow Key : %s" % (Bytes[0]))
55     print("[+] Found : %s" % (result))
56 
57     # clean the temp data
58     os.system("rm ./%s" % (DataFileName))
59 
60 
61 if __name__ == "__main__":
62     main()

執行這個指令碼需要下載 numpy 和 matplotlib

執行格式

python3 UsbKeyboardDataHacker.py  xxx.pcapng