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# cd dnsteal/
# ./dnsteal.py -h
___ _ _ ___ _ _
| | | / __| |_ ___ __ _| |
| |) | .` __ _/ –_) _` | |
|___/|_|_|___/_______,_|_|v2.0
— https://github.com/m57/dnsteal.git —
Stealthy file extraction via DNS requests
Usage: python ./dnsteal.py [listen_address] [options]
Options:
–z Unzip incoming files.
–v Verbose output.
–h This help menu
Advanced:
–b Bytes to send per subdomain (default = 57, max=63)
–s Number of data subdomains per request (default = 4, ie. $data.$data.$data.$data.$filename)
–f Length reserved for filename per request (default = 17)
$ python ./dnsteal.py –z 127.0.0.1
———— Do not change the parameters unless you understand! ————
The query length cannot exceed 253 bytes. This is including the filename.
The subdomains lengths cannot exceed 63 bytes.
Advanced:
./dnsteal.py 127.0.0.1 –z –s 4 –b 57 –f 17 4 subdomains, 57 bytes => (57 * 4 = 232 bytes) + (4 * ‘.’ = 236). Filename => 17 byte(s)
./dnsteal.py 127.0.0.1 –z –s 4 –b 55 –f 29 4 subdomains, 55 bytes => (55 * 4 = 220 bytes) + (4 * ‘.’ = 224). Filename => 29 byte(s)
./dnsteal.py 127.0.0.1 –z –s 4 –b 63 –f 1 4 subdomains, 63 bytes => (62 * 4 = 248 bytes) + (4 * ‘.’ = 252). Filename => 1 byte(s)
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