在 python 中使用正则表达式提取值

Question

How can I extract Input from the following string using regex:

{"eventid":"cowrie.command.input","input":"echo \"root:twrHxXE7YmIr\"|chpasswd|bash","message":"CMD: echo \"root:twrHxXE7YmIr\"|chpasswd|bash","sensor":"cowrieHoneypot2","timestamp":"2021-05-06T10:35:25.171419Z","src_ip":"121.201.95.106","session":"1ce15808ec97"}

Following is the regex pattern currently I'm using:

\"input\":\"[a-zA-z0-9\s=+~_\\$-|]*\"

But it returns half values like:

"input":"echo \"

So, how can I modify this regex to get the complete value?

Answer 1

You need to add commas between } and { that are separated with a newline, and it can be done with a simple .replace("}\n{", "},\n{") .

Then you can parse the JSON with json module:

import json

filepath = r'PATH_TO_FILE'

with open(filepath, 'r') as f:
    contents = f.read()

j = json.loads('[{}]'.format(contents.replace("}\n{", "},\n{")))
values = [n["input"] for n in j if 'input' in n]
print(values)

Using your data, the output is

['enable', 'system', 'system', 'shell', 'shell', 'sh', 'cat /proc/mounts; /bin/busybox KUHJY', 'cd /dev/shm; cat .s || cp /bin/echo .s; /bin/busybox KUHJY', 'tftp; wget; /bin/busybox KUHJY', 'dd bs=52 count=1 if=.s || cat .s || while read i; do echo $i; done < .s', 'while read i', '/bin/busybox KUHJY', 'rm .s; exit', 'cat /proc/cpuinfo | grep name | wc -l', 'echo "root:QEqRsCr9yFa5"|chpasswd|bash', "cat /proc/cpuinfo | grep name | head -n 1 | awk '{print $4,$5,$6,$7,$8,$9;}'", "free -m | grep Mem | awk '{print $2 ,$3, $4, $5, $6, $7}'", 'ls -lh $(which ls)', 'which ls', 'crontab -l', 'w', 'uname -m', 'cat /proc/cpuinfo | grep model | grep name | wc -l', 'top', 'uname', 'uname -a', 'lscpu | grep Model', 'cd ~ && rm -rf .ssh && mkdir .ssh && echo "ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEArDp4cun2lhr4KUhBGE7VvAcwdli2a8dbnrTOrbMz1+5O73fcBOx8NVbUT0bUanUV9tJ2/9p7+vD0EpZ3Tz/+0kX34uAx1RV/75GVOmNx+9EuWOnvNoaJe0QXxziIg9eLBHpgLMuakb5+BgTFB+rKJAw9u9FSTDengvS8hX1kNFS4Mjux0hJOK8rvcEmPecjdySYMb66nylAKGwCEE6WEQHmd1mUPgHwGQ0hWCwsQk13yCGPK5w6hYp5zYkFnvlC8hGmd4Ww+u97k6pfTGTUbJk14ujvcD9iUKQTTWYYjIIu5PmUux5bsZ0R4WFwdIe6+i6rBLAsPKgAySVKPRK+oRw== mdrfckr">>.ssh/authorized_keys && chmod -R go= ~/.ssh && cd ~', 'enable', 'system', 'system', 'shell', 'shell', 'sh', 'cat /proc/mounts; /bin/busybox PYIHO', 'cd /dev/shm; cat .s || cp /bin/echo .s; /bin/busybox PYIHO', 'tftp; wget; /bin/busybox PYIHO', 'dd bs=52 count=1 if=.s || cat .s || while read i; do echo $i; done < .s', 'while read i', '/bin/busybox PYIHO', 'rm .s; exit', 'enable', 'system', 'system', 'shell', 'shell', 'sh', 'cat /proc/mounts; /bin/busybox GYYXE', 'cd /dev/shm; cat .s || cp /bin/echo .s; /bin/busybox GYYXE', 'tftp; wget; /bin/busybox GYYXE', 'dd bs=52 count=1 if=.s || cat .s || while read i; do echo $i; done < .s', 'while read i', '/bin/busybox GYYXE', 'rm .s; exit']

Answer 2

 \"input\":\"([^\,\}\"]|\\\")*\"[,\{]