/
telnet.go
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/
telnet.go
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/*
* NETCAP - Traffic Analysis Framework
* Copyright (c) 2017-2020 Philipp Mieden <dreadl0ck [at] protonmail [dot] ch>
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package credentials
import (
"time"
"github.com/dreadl0ck/netcap/types"
)
// harvester for telnet traffic.
func telnetHarvester(data []byte, ident string, ts time.Time) *types.Credentials {
matches := reTelnet.FindSubmatch(data)
if len(matches) > 1 {
var username string
for i, letter := range string(matches[1]) {
if i%2 == 0 {
username = username + string(letter)
}
}
return &types.Credentials{
Timestamp: ts.UnixNano(),
Service: serviceTelnet,
Flow: ident,
User: username,
Password: string(matches[2]),
}
}
return nil
}